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Grade S31500
Corresponding Standard ASTM A959-2004
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Duplex Stainless Steel
S31500 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N
Minimum Value - 1.4 1.2 - - 18 4.3 2.5 0.05
Maximum Value 0.03 2 2 0.03 0.03 19 5.2 3 0.1
1 Approximate Comparison Table Austenitic-Ferritic Stainless Steel
China United States
GB ISC UNS
022Cr19Ni5Mo3Si2N
(00Cr18Ni5Mo3Si2) 		S21953 S31500
2 Approximate Comparison Table Austenitic-Ferritic Stainless Steel
United States International Organization for Standardization European Standard
UNS ISO Numerical Grade Numerical Grade
S31500 X2CrNiMoSiMnN19-5-3-2-2 4424-315-00-I 1.4424
3 Approximate Comparison Table Austenitic-Ferritic Stainless Steel
China United States International Organization for Standardization United Kingdom
GB ISC UNS ISO Numerical Grade BS EN/BS
022Cr19Ni5Mo3Si2N
(GB/T 39033) 		S21953 S31500
(ASTM A959-16) 		X2CrNiMoSiMnN19-5-3-2-2
(ISO 15510:2014) 		4424-315-00-Ⅰ X2CrNiMoSi18-5-3/1.4424
(BS EN 10088-3:2014)
S31500 Corresponding Standards(Same grade name, different standards)
1 ASTM A959-2004
S31500
2 ASTM A959-2019
S31500
3 ASTM A789/A789M-2024
S31500
4 ASTM A790/A790M-2024
S31500
5 ASME SA-789/SA-789M-2023
S31500
6 ASTM A949/A949M-2001(R2019)
S31500

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