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Grade SUH3
Corresponding Standard JIS G 4311-1991
Heat-resisting steel bars and wire rods
Classification Martensitic Stainless Steel
SUH3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.35 1.8 - - - 10 - 0.7
Maximum Value 0.45 2.5 0.6 0.03 0.03 12 0.6 1.3
1 Approximate Comparison Table Martensitic Heat-Resistant Steel
China Taiwan, China Japan South Korea Germany France European Standard Russia
GB ISC CNS JIS KS DIN EN/DIN W-Nr. NF EN/NF EN GOST
40Cr10Si2Mo
(4Cr10Si2Mo) 		S48140 SUH 3 SUH 3 STR 3 X40CrSiMo 10-2 1.4731 Z40CSD 10 X40CrSiMo 10
X40CrSiMo 10-2 		40Х10С2М
2 Approximate Comparison Table Valve Steel
China Taiwan, China Japan South Korea Germany France European Standard Russia
GB ISC CNS JIS KS DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
40Cr10Si2Mo
(4Cr10Si2Mo) 		S48140 3 SUH 3 STR 3 X40CrSiMo 10-2 1.4731 Z40CSD 10 X40CrSiMo 10 1.4731 40Х10С2М
SUH3 Corresponding Standards(Same grade name, different standards)
1 JIS G 4311-1991
SUH3
2 JIS G 4311-2019
SUH3

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