Section

Standards

Standards and GOST specifications for steel products: what they govern and how to read a grade.

5 articles

ГОСТ 9941 and 9940: stainless steel pipes
How ГОСТ 9941 and 9940 differ, how the range of stainless pipes is structured, what tests seamless and welded pipes undergo and when supply is made to ТУ.
- 20 September 2026
- Standards
- 11 min read
ГОСТ standards for long products: round bar, hexagon, angle
ГОСТ 2590 and 2591 for stainless round bar, requirements for hexagon and angle, calibrated product and quality control of long steel products.
- 20 September 2026
- Standards
- 7 min read
ГОСТ standards for stainless steel products: a full guide
How to read ГОСТ standards for stainless steel products: 12Х18Н10Т to ГОСТ 5632, AISI 304 to ГОСТ and grade equivalences. Types of rolled steel, ТУ, batch certificate and acceptance.
- 20 September 2026
- Standards
- 13 min read
ГОСТ 5582, 7350, 19903: stainless sheet
Which ГОСТ is responsible for stainless sheet: 5582, 7350, 19903. Cold-rolled and hot-rolled sheet, rolling accuracy, acceptance and the batch certificate.
- 20 September 2026
- Standards
- 11 min read
ASTM, EN, DIN, ASME: how they relate to ГОСТ
How AISI differs from ASTM and where EN, DIN and ASME fit in. A comparison table of grades 304, 316 and 321 under ГОСТ and Western standards, and what to write in the contract.
- 20 September 2026
- Standards
- 7 min read

What we write about

Ten sections. Each one is where a question actually comes up in a deal or in working with metal, not where a keyword happens to sit.