Last updated: 5 October 2026.
Quick answer. Two recommended standards cover most extruded aluminium from China: GB/T 6892-2023 for general industrial profiles and the GB/T 5237 series (2017 editions) for architectural profiles, with GB/T 14846-2014 for dimensional tolerances. Search the register by 挤压型材, not 铝型材: the short form returns almost nothing.
Aluminium extrusion from China: the GB standards that actually govern industrial and architectural profiles, which editions are current, and how to search the register.
Every standard number, title, status and date on this page comes from the National Standards Information Public Service Platform (`std.samr.gov.cn`), the Chinese state platform that publishes the national standard register, searched by title on 5 October 2026. The searches, the counts they returned and the retrieved rows are recorded in the source table at the end.
An aluminium extrusion bought from China is usually specified against one of two things, and they are not interchangeable:
Around those two sit a tolerance standard (GB/T 14846-2014), a finish standard set (the GB/T 8013 series plus GB/T 19822-2024 for hard anodising), and a stack of application-specific profile standards for rail, automotive, bridge, roof, marine, heat-exchanger and aerospace work.
Three findings from the register are worth a buyer's attention before anything else on this page:
Eleven documents and a long list of numbers are easier to place if the neighbours are named:
The platform searched here is a title index. A term either appears in a standard's title or it does not; the search is not a full-text search, and a standard that governs extrusions without naming them in the title will not appear in these counts.
Two consequences the reader should carry through the tables below:
The register is also the only source used. No ASTM, EN, ISO or JIS number appears on this page, and no mapping between the GB system and any other system is attempted, because no mapping was retrieved from a source.
Title searches run on 5 October 2026. "Reported" is the total the platform prints; "retrieved" is the number of rows actually returned and read.
| Search term (Chinese) | Meaning | Reported | Retrieved | In force | Abolished | Pending |
|---|---|---|---|---|---|---|
| 挤压型材 | extruded profiles | 23 | 23 | 10 | 12 | 1 |
| 铝合金建筑型材 | extruded profiles for architecture | 34 | 35 | 10 | 25 | 0 |
| 铝及铝合金挤压 | aluminium and alloy extrusion | 19 | 19 | 8 | 11 | 0 |
| 铝合金型材 | aluminium-alloy profiles | 59 | 59 | 25 | 33 | 1 |
| 阳极氧化 | anodising | 69 | 69 | 31 | 36 | 2 |
| 挤压模具 | extrusion dies | 0 | 0 | 0 | 0 | 0 |
| 铝型材 | aluminium profiles (short form) | 1 | 1 | 1 | 0 | 0 |
| 铝合金 | aluminium alloy (too broad) | 543 | 200 (page cap) | 114 | 84 | 2 |
Two disclosures about that table, both ours. The 铝合金 row is included only to show why it is unusable: 543 matches is the register saying the word is too broad to plan around, and this page read the platform's first 200 rows and stopped, so that row is not used for any count below. The 铝合金建筑型材 row shows a platform discrepancy — a reported total of 34 with 35 rows returned. This page repeats both numbers rather than reconciling them, and treats the family as "about 34–35 records".
| Standard | What its title says it covers | Nature | Status | Issued | Effective |
|---|---|---|---|---|---|
| GB/T 6892-2023 | General industrial aluminium and aluminium-alloy extruded profiles | recommended | in force | 2023-09-07 | 2024-04-01 |
| GB/T 5237.1-2017 | architectural profiles, part 1: mill finish | recommended | in force | 2017-10-14 | 2018-07-01 |
| GB/T 5237.2-2017 | part 2: anodised profiles | recommended | in force | 2017-10-14 | 2018-07-01 |
| GB/T 5237.3-2017 | part 3: electrophoretic-coated profiles | recommended | in force | 2017-10-14 | 2018-07-01 |
| GB/T 5237.4-2017 | part 4: powder-coated profiles | recommended | in force | 2017-10-14 | 2018-05-01 |
| GB/T 5237.5-2017 | part 5: painted profiles | recommended | in force | 2017-10-14 | 2018-07-01 |
| GB/T 5237.6-2017 | part 6: thermal-barrier profiles | recommended | in force | 2017-10-14 | 2018-07-01 |
Read the structural difference between the two families, because it drives how a specification should be written. GB/T 6892-2023 is one document for industrial profiles. The architectural family is split by finish, so "specify GB/T 5237" is not a complete instruction — the buyer has to name the part that matches the finish being bought. Part 4's effective date is two months ahead of its siblings, which is the kind of detail that shows up in a certificate.
The predecessor editions are still circulating, and the register lists them as abolished:
| Standard | Title | Status | Effective (as issued) |
|---|---|---|---|
| GB/T 6892-2015 | general industrial aluminium and aluminium-alloy extruded profiles | abolished | 2016-07-01 |
| GB/T 6892-2006 | same title | abolished | 2007-02-01 |
| GB/T 6892-2000 | industrial aluminium and aluminium-alloy hot-extruded profiles | abolished | 2000-11-01 |
| GB 5237.1-2004 … GB 5237.6-2004 | architectural profiles, six parts, mandatory editions | abolished (all) | 2005-03-01 |
| GB/T 5237.1-2008 … GB/T 5237.5-2008 | architectural profiles, recommended editions | abolished | 2009-09-01 |
| GB/T 5237.6-2012 | architectural profiles, part 6 thermal barrier | abolished | 2013-04-01 |
If a supplier's certificate cites GB/T 6892-2015 or a GB 5237.x-2004 part, it is citing a withdrawn edition. This page states the editions and dates the register prints; it does not state whether any particular certificate is acceptable, which depends on the buyer's own specification and on whatever scheme the buyer is working to.
The register keeps dimensional deviation in its own document rather than folding it into the profile specification:
| Standard | Title | Nature | Status | Issued | Effective |
|---|---|---|---|---|---|
| GB/T 14846-2014 | Dimensional deviation of aluminium and aluminium-alloy extruded profiles | recommended | in force | 2014-12-05 | 2015-05-01 |
| GB/T 14846-2008 | same title | recommended | abolished | 2008-03-31 | 2008-09-01 |
| GB/T 14846-1993 | same title | recommended | abolished | 1993-12-30 | 1994-06-01 |
Two related documents the register files next to it, both currently in force: GB/T 4436-2012, Dimensions and permissible deviations of aluminium and aluminium-alloy tubes (effective 2013-10-01), for the tube form; and, for extruded bar rather than profile, GB/T 3191-2019, Aluminium and aluminium-alloy extruded bars (effective 2020-05-01), which supersedes the 2010 and 1998 editions.
This page does not reproduce any tolerance value from any of them. What the register establishes is only that the tolerance question has its own standard number, which is why "the profile standard" and "the tolerance standard" need to be named separately on a purchase specification.
Finish is where the register is richest, and where a specification most often goes vague. The GB/T 8013 series is the film standard; the numbers below are the ones the register shows in force.
| Standard | Title | Status | Issued | Effective |
|---|---|---|---|---|
| GB/T 8013.1-2018 | anodic oxidation coatings and organic polymer films on aluminium — part 1: anodic oxidation films | in force | 2018-05-14 | 2019-02-01 |
| GB/T 8013.2-2018 | part 2: anodic oxidation composite films | in force | 2018-05-14 | 2019-02-01 |
| GB/T 8013.3-2018 | part 3: organic polymer coating films | in force | 2018-05-14 | 2019-02-01 |
| GB/T 8013.4-2021 | part 4: texture films | in force | 2021-08-20 | 2022-03-01 |
| GB/T 8013.5-2021 | part 5: functional films | in force | 2021-08-20 | 2022-03-01 |
| GB/T 19822-2024 | Specification for hard anodic oxidation coatings on aluminium and its alloys | in force | 2024-06-29 | 2025-01-01 |
| GB/T 23612-2017 | Technical specification for anodising and anodising–electrophoretic coating of architectural profiles — the process document for the architectural family | in force | 2017-07-12 | 2018-04-01 |
| GB/T 36159-2018 | Selection of surface anodic oxidation films and organic polymer films on aluminium for architecture: coating, performance, test methods | in force | 2018-05-14 | 2019-02-01 |
| GB/T 26296-2010 | Defects in anodic oxidation films and organic polymer coatings on aluminium and its alloys | in force | 2011-01-14 | 2011-11-01 |
The test methods sit in their own numbered series, and the current parts are recent: GB/T 12967.1-2020 (abrasion resistance), GB/T 12967.3-2022 (salt-spray test), GB/T 12967.4-2022 (light-and-heat resistance) and GB/T 12967.6-2022 (colour difference and appearance), all effective from 2022-10-01 apart from part 1 (2021-04-01). Corrosion assessment of the same films is covered by GB/T 42514-2023 (chart method) and GB/T 42544-2023 (grid method), both effective 2023-12-01.
Nothing in this section states a film thickness, a coating weight, a salt-spray duration or a colour tolerance. Those numbers live inside the standards, and the platform does not publish them.
For architectural work, the register treats a thermal-barrier profile as more than "an insulated profile". Three separate documents apply, and they are all in force:
| Standard | Title | Effective |
|---|---|---|
| GB/T 5237.6-2017 | architectural profiles, part 6: thermal-barrier profiles | 2018-07-01 |
| GB/T 23615.1-2017 | Thermal insulation materials for use with architectural aluminium profiles — part 1: polyamide profiles | 2018-05-01 |
| GB/T 23615.2-2017 | part 2: polyurethane thermal-insulation adhesive | 2018-05-01 |
| GB/T 28289-2012 | Test method for composite performance of aluminium-alloy thermal-barrier profiles | 2013-02-01 |
| GB/T 34482-2017 | Determination method for heat transfer coefficient of aluminium-alloy thermal-barrier profiles for buildings | 2018-07-01 |
The practical reading: the barrier material has its own standard, by material type — a polyamide strip and a polyurethane adhesive are covered by different documents. If a specification only cites the profile part and never names the barrier material, it has left the defining component of a thermal-barrier profile unspecified.
Beyond the two general families, the register holds profile standards written around a single end use. The current editions:
| Standard | Title (self-translated) | Effective |
|---|---|---|
| GB/T 26494-2023 | extruded profiles for rail transit vehicle structures | 2024-07-01 |
| GB/T 33910-2017 | extruded profiles for automobiles | 2018-06-01 |
| GB/T 34488-2017 | extruded profiles for all-aluminium bridge structures | 2018-05-01 |
| GB/T 34489-2017 | extruded profiles and plates for roof structures | 2018-05-01 |
| GB/T 26006-2010 | extruded tubes, bars and profiles for marine use — a 2026 revision is pending | 2011-10-01 |
| GB/T 33884-2017 | profiles and box sections for heavy-haul freight trains | 2018-02-01 |
| GB/T 33226-2016 | multi-port profiles for heat exchangers | 2017-11-01 |
| GB/T 33230-2016 | multi-port micro-channel flat-tube profiles | 2017-07-01 |
| GB/T 26027-2024 | high damage-tolerance aluminium-alloy profiles | 2024-11-01 |
| GB/T 42792-2024 | aerospace: general specification for aluminium-alloy tubes, bars, profiles and wire | 2024-10-01 |
| GB/T 32184-2015 | high-conductivity aluminium-alloy extruded flat bars and plates | 2016-07-01 |
| GB/T 34493-2017 | free-cutting aluminium-alloy extruded bars | 2018-05-01 |
Two further documents in force sit under the same subject and are worth knowing by number rather than by detail: GB/T 37616-2019, axial-force-controlled fatigue test method for aluminium-alloy extruded profiles (effective 2020-05-01), and GB/T 32790-2016, test method for weld-seam quality of aluminium and aluminium-alloy extrusions (effective 2017-07-01).
The alloy system itself is standardised separately, and a profile spec that names an alloy without these three is using an abbreviation the register does not define: GB/T 3190-2020 (chemical composition of wrought aluminium and aluminium alloys, effective 2021-02-01), GB/T 16474-2011 (designation system, effective 2012-10-01) and GB/T 16475-2023 (temper designation system, effective 2024-03-01).
For the window or door that an architectural profile ends up inside, the product-level standard is a different document again: GB/T 8478-2020, Aluminium alloy doors and windows, effective 2021-02-01, superseding the 2008 edition.
Three negative results, each verified as a title search on 5 October 2026:
The correct reading of a zero is narrow: it means the register holds no national standard whose title contains that term. It does not mean the product is unregulated, unstandardised or unavailable.
The register prints a nature field for each record, and in this family it is informative:
| Observation | What the register shows |
|---|---|
| The two general profile families | entirely recommended (GB/T) — the industrial profile standard and all six architectural parts |
| The old architectural parts | mandatory (GB 5237.x-2004), all seven entries abolished |
| Other mandatory entries in the family | GB 21351-2014 and GB 21351-2008, energy consumption limits per unit product for architectural aluminium profiles — both abolished |
| Mandatory entries still in force nearby | GB 30078-2013, safety production specification for wrought aluminium and aluminium-alloy ingots (effective 2014-11-01), and GB 30079-2026, safety specification for the production of aluminium and aluminium-alloy plate, strip and foil (effective 2026-09-01) |
| Mandatory entries abolished elsewhere in the wider family | GB 26756-2011, energy consumption limits per unit product for hot-extruded aluminium and alloy bars |
Read together, that table says something a buyer can use: in this family the compulsory Chinese national standards are about production safety and, historically, energy consumption — not about the geometry or the finish of the profile. The profile and finish standards a specification leans on are recommended standards, and their authority comes from being named in the contract, not from being mandatory.
This page does not claim that Chinese exports of extrusions are unregulated. It states only what the register shows about the nature field of the records it returned.
A register that lists abolished editions alongside current ones is useful precisely because it shows what is still in circulation. Two current items will be superseded on dates the register already prints:
| Standard | Title | Issued | Effective | Supersedes |
|---|---|---|---|---|
| GB/T 26006-2026 | extruded tubes, bars and profiles for marine use | 2026-05-25 | 2026-12-01 | GB/T 26006-2010 |
| GB/T 20503-2026 | measurement of specular reflectance and specular gloss of anodic oxidation films and organic polymer films | 2026-05-25 | 2026-12-01 | GB/T 20503-2006 |
| GB/T 20504-2026 | measurement of image clarity of the same films | 2026-05-25 | 2026-12-01 | GB/T 20504-2006 |
If a purchase specification is being written now for delivery after 1 December 2026, the marine profile and the two film-measurement methods are the three records whose numbers will have moved.
⚠️ Source-scope disclosure. This page uses one source: the Chinese national standard register as published on `std.samr.gov.cn`. That is deliberate — it keeps every number on the page traceable to the register that issues it — but it has two costs the reader should know. First, the searches are title searches: a record appears only if the search term is in the title, so these counts are a lower bound on the relevant body of work, not a census. Second, no second publisher was used to cross-check any record, and the register itself prints one internal discrepancy (a reported total of 34 against 35 returned rows for one term), which this page repeats rather than reconciles.
⚠️ Translation. The register publishes Chinese titles only. Every English title on this page is this page's own translation, marked as such, and the Chinese term searched is shown alongside the result in every table. No Chinese-language source text was translated as content: the register supplies standard numbers, titles, nature, state and dates, and nothing else was taken from it. This page consequently contains Chinese characters, which are the search terms and the titles the register actually uses.
⚠️ What was NOT used. No supplier, marketplace, trade publication, consultancy, testing laboratory or certification body contributed a fact to this page. The Bing autosuggest demand evidence behind choosing this topic is recorded in the working notes at the end and is not a source for any claim above.
For general industrial extruded profiles the current edition is GB/T 6892-2023, issued 7 September 2023 and effective 1 April 2024. For architectural profiles the current editions are the six GB/T 5237.x-2017 parts, split by finish, with dimensional deviation in a separate standard, GB/T 14846-2014. All three are recommended (GB/T) standards, not mandatory ones.
It used to be. Every 2004 edition in that family carries a GB number, which marks a mandatory national standard, and the register lists all of those entries as abolished. The editions in force are all GB/T — recommended — including all six current parts. What makes a recommended standard binding in practice is being named in the purchase contract.
Because the short form is not how the register titles these documents. A title search for 铝型材 — the everyday word for an aluminium profile — returns one record, and it is a machining centre for curtain-wall profiles, not a profile specification. The productive title term is 挤压型材, "extruded profile", which returns 23 records. For the architectural family specifically, search 铝合金建筑型材.
Not by title. A title search for 挤压模具 returns 0 records on the platform searched here on 5 October 2026. That means no national standard carries that term in its title; it does not mean the die is uncontrolled. In practice the die is specified by its drawing, the alloy, the press and the test methods, so the specification has to carry that information itself.
Check the number's year suffix against the register. GB/T 6892-2015 and the GB 5237.x-2004 parts are abolished editions and are still seen on paperwork; the current ones are GB/T 6892-2023 and the GB/T 5237.x-2017 parts. Two records also change on 1 December 2026 — GB/T 26006-2026 for marine profiles and GB/T 20503-2026 and GB/T 20504-2026 for film measurement — so a specification written for delivery after that date should name the new numbers.
All sources retrieved 5 October 2026. This page is an independent reading of the sources listed; the official pages themselves are the specification.
| Fact used on this page | Source |
|---|---|
| S1 — The register and its search behaviour: the platform is the National Standards Information Public Service Platform; searches are title searches, not full text; each record carries a code, a Chinese title, a nature field (强制性 / 推荐性) and a state field (现行 / 废止 / 即将实施) with issue and effective dates; the results in the counts table were obtained on 5 October 2026 from the query endpoint with the terms 挤压型材, 铝合金建筑型材, 铝及铝合金挤压, 铝合金型材, 阳极氧化, 挤压模具, 铝型材 and 铝合金 | Standardisation Administration of the PRC — National Standards Information Public Service Platform (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S2 — GB/T 6892-2023 general industrial aluminium and aluminium-alloy extruded profiles: recommended, in force, issued 2023-09-07, effective 2024-04-01; predecessors GB/T 6892-2015 (abolished, effective 2016-07-01), GB/T 6892-2006 (abolished, effective 2007-02-01) and GB/T 6892-2000 industrial aluminium and aluminium-alloy hot-extruded profiles (abolished, effective 2000-11-01) | same platform, title search 挤压型材 / 铝及铝合金挤压 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S3 — GB/T 5237.1-2017 to GB/T 5237.6-2017, wrought aluminium alloy extruded profiles for architecture, parts 1–6 (mill finish, anodised, electrophoretic-coated, powder-coated, painted, thermal-barrier): all recommended, all in force, issued 2017-10-14, effective 2018-07-01 except part 4 (2018-05-01); the mandatory GB 5237.1-2004 to GB 5237.6-2004 editions, all abolished, effective 2005-03-01; GB/T 5237.1-2008 to GB/T 5237.5-2008 and GB/T 5237.6-2012 abolished | same platform, title search 铝合金建筑型材 / 铝合金型材 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S4 — GB/T 14846-2014 dimensional deviation of aluminium and aluminium-alloy extruded profiles, recommended, in force, issued 2014-12-05, effective 2015-05-01; predecessors GB/T 14846-2008 and GB/T 14846-1993 both abolished; GB/T 4436-2012 dimensions and permissible deviations of aluminium and aluminium-alloy tubes effective 2013-10-01; GB/T 3191-2019 aluminium and aluminium-alloy extruded bars effective 2020-05-01, superseding the 2010 and 1998 editions | same platform, title search 挤压型材 / 铝及铝合金挤压 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S5 — GB/T 8013.1-2018, .2-2018, .3-2018 anodic oxidation coatings and organic polymer films on aluminium (anodic oxidation films; anodic oxidation composite films; organic polymer coating films) and GB/T 8013.4-2021, .5-2021 (texture films; functional films); GB/T 19822-2024 specification for hard anodic oxidation coatings, effective 2025-01-01; GB/T 23612-2017 technical specification for anodising and anodising–electrophoretic coating of architectural profiles, effective 2018-04-01; GB/T 36159-2018 selection of surface films for architecture, effective 2019-02-01; GB/T 26296-2010 defects, effective 2011-11-01; test methods GB/T 12967.1-2020, GB/T 12967.3-2022, GB/T 12967.4-2022, GB/T 12967.6-2022; corrosion assessment GB/T 42514-2023 and GB/T 42544-2023, both effective 2023-12-01 | same platform, title search 阳极氧化 / 铝合金 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S6 — Thermal-barrier set: GB/T 5237.6-2017, GB/T 23615.1-2017 polyamide profiles, GB/T 23615.2-2017 polyurethane thermal-insulation adhesive, GB/T 28289-2012 composite performance test method, GB/T 34482-2017 heat transfer coefficient determination — all in force with the effective dates given | same platform, title search 铝合金建筑型材 / 铝合金型材 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S7 — Application-specific profiles in force: GB/T 26494-2023 rail transit vehicle structures (2024-07-01); GB/T 33910-2017 automotive (2018-06-01); GB/T 34488-2017 all-aluminium bridge structures (2018-05-01); GB/T 34489-2017 roof structures (2018-05-01); GB/T 26006-2010 marine extruded tubes, bars and profiles (2011-10-01); GB/T 33884-2017 heavy-haul freight trains (2018-02-01); GB/T 33226-2016 heat-exchanger multi-port profiles (2017-11-01); GB/T 33230-2016 multi-port micro-channel flat-tube profiles (2017-07-01); GB/T 26027-2024 high damage-tolerance profiles (2024-11-01); GB/T 42792-2024 aerospace (2024-10-01); GB/T 32184-2015 high-conductivity extruded flat bars and plates (2016-07-01); GB/T 34493-2017 free-cutting extruded bars (2018-05-01); GB/T 37616-2019 fatigue test method (2020-05-01); GB/T 32790-2016 weld-seam test method (2017-07-01); alloy documents GB/T 3190-2020 (2021-02-01), GB/T 16474-2011 (2012-10-01) and GB/T 16475-2023 (2024-03-01); and GB/T 8478-2020 aluminium alloy doors and windows (2021-02-01) | same platform, title searches 挤压型材 / 铝合金型材 / 铝及铝合金挤压 / 铝合金 (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |
| S8 — Negative and boundary results, all verified as title searches: 挤压模具 -> 0 records; 铝型材 -> 1 record, GB/T 28390-2012 high-speed five-face machining centre for curtain-wall aluminium profiles (recommended, in force, issued 2012-05-11, effective 2012-10-01); 铝合金 -> reported 543 records of which the platform returned the first 200 rows; 铝合金建筑型材 -> reported 34 with 35 rows returned; mandatory entries in the wider family — GB 21351-2014 and GB 21351-2008 energy consumption limits for architectural aluminium profiles (both abolished), GB 26756-2011 energy consumption limits for hot-extruded bars (abolished), GB 30078-2013 safety production specification for wrought aluminium and alloy ingots (in force, effective 2014-11-01) and GB 30079-2026 safety specification for plate, strip and foil production (in force, issued 2026-02-27, effective 2026-09-01); pending editions GB/T 26006-2026, GB/T 20503-2026 and GB/T 20504-2026, all issued 2026-05-25 and effective 2026-12-01, and GB/T 48184-2026 effective 2027-03-01 | same platform, title searches as listed (retrieved 2026-10-05) https://std.samr.gov.cn/gb/search/gbQueryPage |