Hot-rolled flat product
GB/T 4237 covers hot-rolled stainless plate, sheet and strip within its scope.
Technical guide
GB Stainless Steel Standards
GB stainless steel standards are selected by product form and service. A Chinese grade designation must be paired with the correct standard, edition, dimensions, condition, finish, tests and inspection documents.
Flat productsGB/T 4237 and GB/T 3280
Fluid pipeGB/T 14976 and GB/T 12771
Status sourceChina national standards portal
Decision summary
Start with the delivered product and manufacturing route
Hot-rolled sheet, cold-rolled strip, seamless fluid pipe and welded pipe use different GB/T documents even when the alloy designation looks similar.
Cold-rolled flat product
GB/T 3280 covers cold-rolled stainless plate, sheet and strip.
Stainless bar
GB/T 1220 covers stainless steel bars and associated delivery requirements.
Seamless fluid pipe
GB/T 14976-2025 is current and took effect on 1 February 2026.
Welded fluid pipe
GB/T 12771-2019 covers welded stainless steel pipe for fluid transport.
Grade comparison
A GB designation and an ASTM, EN or JIS label are not automatically interchangeable.
Reference table
Selected GB/T stainless product standards
Use the official national standards portal to confirm status, implementation date, amendments and the contract edition.
| Standard | Product scope | Current-edition note | RFQ inputs |
|---|---|---|---|
| GB/T 4237-2015 | Hot-rolled stainless steel plate, sheet and strip | Listed current on the official portal | Grade, plate/sheet/strip, thickness, width, length, finish, tests |
| GB/T 3280-2015 | Cold-rolled stainless steel plate, sheet and strip | Confirm official status and contract edition | Grade, dimensions, surface, edge, shape and tests |
| GB/T 1220-2007 | Stainless steel bars | Confirm official status and any replacement before ordering | Grade, section, size, length, condition and tests |
| GB/T 14976-2025 | Seamless stainless steel pipes for fluid transport | Current; effective 2026-02-01 | Grade, OD/wall, route, length, ends, tests and marking |
| GB/T 12771-2019 | Welded stainless steel pipes for fluid transport | Current official listing | Grade, OD/wall, weld route, length, tests and marking |
The table maps scope only. Use the authorized Chinese standard text for chemistry, mechanical properties, dimensional tolerances, sampling and acceptance.
Working method
Write a complete GB/T purchase line
Connect the alloy designation to a product standard and a traceable inspection package.
Name the standard and edition
State the exact GB/T number and year required by the contract.
State grade and form
Use the controlled Chinese designation plus plate, strip, bar, seamless pipe or welded pipe.
Define delivery details
Add dimensions, tolerances, condition, finish, edge, ends, heat treatment and quantity.
Define verification
Specify chemistry, mechanical, corrosion, pressure/NDE tests, document type, marking and packing.
Limits and escalation
Avoid false equivalence across standards systems
Similar chemistry is not enough
Product scope, properties, test methods and tolerances can differ.
Edition changes matter
A replacement can change requirements and implementation dates.
Translation is not the controlling text
Use the authorized version named by the contract.
Pipe route matters
Do not substitute welded and seamless standards without engineering and purchaser approval.
Interactive planning aid
Find a GB/T standard starting point
Choose the delivered form to display the first product standard to review.
Frequently asked questions
GB stainless steel standards FAQ
GB/T 4237-2015 covers hot-rolled stainless plate, sheet and strip and is listed as current on the official portal.
GB/T 14976-2025 is the current standard and became effective on 1 February 2026.
No. Compare chemistry, product scope, condition, properties, dimensions, tests and documents before substitution.
Not automatically. Confirm the contract, jurisdiction and transition rules before changing editions.
Method, sources and review
Traceable sources and review status
Official portal listing for hot-rolled stainless plate, sheet and strip.
Official current standard page for seamless stainless fluid pipe.
Official standard page for welded stainless fluid pipe.
Official search and status source for Chinese national standards.
Check the official portal immediately before procurement. The licensed or authorized contract edition controls; this page is a scope map, not a substitute for the standard.
GB standards context
Read the GB designation with the product standard and acceptance clauses.
A GB material reference does not define the full supply condition alone. Confirm the relevant product scope, dimensions, delivery state and inspection requirements.
- Product scope
- Delivery state
- Acceptance clause
Visual process context
Make the delivered product and the acceptance evidence visible.
Reserve one image for the relevant product form and another for document, test or inspection evidence.
Engineering and sourcing support
Request stainless against the correct GB/T product standard
Send GB/T standard and edition, grade, form, route, dimensions, condition, finish, tests, documents, quantity and destination.