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Grade 2
Corresponding Standard ISO 683-16-1976
Heat-Treated Steels, Alloy Steels and Free-Cutting Steels — Part 16: Precipitation Hardening Stainless Steels
Classification Precipitation-Hardening Stainless Steel
Properties Corrosion Resistance
2 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Al
Minimum Value - - - - - 16 6.5 - 0.75
Maximum Value 0.09 1 1 0.04 0.03 18 7.75 0.5 1.5
1 Approximate Comparison Table Precipitation Hardening Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
07Cr17Ni7Al
(0Cr17Ni7Al) 		S51770 631 SUS 631 STS 631 631 S17700 X7CrNiAl 17-7
2
(ISO 683-13-1986) 		X7CrNiAl 17-7 1.4568 Z8CNA 17-07 X7CrNiAl 17-7 1.4568 09Х17Н7Ю
2 Approximate Comparison Table Ferritic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr13Al
(0Cr13Al) 		S11348 405 SUS 405 STR 405 405 S40500 X6CrAl 13
2
ISO 683-13-1986 		X6CrAl 13
(X7CrAl 13) 		1.4002 Z6CA 13 X6CrAl 13 1.4002 1Х20Ю 2302 405S17
2 Corresponding Standards(Same grade name, different standards)
1 ISO 683-11-1987
2 C15E4
2 ISO 683-14-2004
(2) 56SiCr7
3 ISO 683-13-1986
2
4 ISO 683-16-1976
2
5 ASTM B122/B122M-2016
(2) B122 C75200
6 ASTM A485-2014
2 A485 Grade 2 A485 Gr.2
7 TB /T 1882-2001
2 LG61

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