Stainless Steel Pipes - Comparing American and European Standards

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he table below can be used to compare American and European stainless steel standards.

USA	UK	Germany		Sweden
ASTM A312	BS 3605	WSN	DIN type	SIS
TP 304	Grade 801	4301	X 5 CrNi 18 9	SIS 2333-02
TP 304H	Grade 811		X6 CrNi 18 11
TP 304L	Grade 801L	4306	X 2 CrNi 18 9	SIS 2352-02
TP 310	Grade 805	4841	X 15 CrNiSi 25 20	SIS 2661-02
TP 316	Grade 845	4401 / 4436	X 5 CrNiMo 18 10	SIS 2343-02
TP 316H	Grade 855
TP 316L	Grade 845L	4404	X 2 CrNiMo 18 10	SIS 2353-02
TP 317	Grade 846
TP 321	Grade 822 Ti	4541	X10 CrNiTi 18 9	SIS 2337-02
TP 321H	Grade 832 Ti
TP 347	Grade 822 Nb	4550	X10 CrNiNb 18 9	SIS 2338-02
TP 347 H	Grade 832 Nb

• A312/A312M-02 Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipes covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
• BS 3605-[1-2]:1991 Austenitic stainless steel pipes and tubes for pressure purposes