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Home Material GB /T 20878-2007
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Grade 42Cr9Si2
China ISC S48040
Old Grade
Corresponding Standard GB /T 20878-2007
Stainless and Heat-Resisting Steels - Designation and Chemical Composition
Classification Martensitic Stainless Steel
Properties Corrosion Resistance High-Temperature Strength Impact Toughness Weldability
42Cr9Si2 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value 0.35 2 - - - 8 -
Maximum Value 0.5 3 0.7 0.035 0.03 10 0.6
1 Approximate Comparison Table Martensitic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS UNS SAE ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
42Cr9Si2
(4Cr9Si2) 		S48040 SUH 11 SUH 11 STR 11 S65000 HNV3 X45CrSi 9-3 X45CrSi 9-3 1.4718 Z45CS 9 X45CrSi 8
X45CrSi 9-3 		1.4718
1.4718 		40Х9С2 401S45
2 Approximate Comparison Table Valve Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS Commercial Grade UNS SAE ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
42Cr9Si2
(4Cr9Si2) 		S48040 1 SUH 1 STR 1 Sil 1 S65007 HNV3 X45CrSi 9-3 X45CrSi 9-3 1.4718 Z45CS 9 X45CrSi 8 1.4718 40Х9С2 401S45
42Cr9Si2 Corresponding Standards(Same grade name, different standards)
1 GB /T 20878-2007
42Cr9Si2 S48040 (4Cr9Si2)
2 GB /T 1221-2007
42Cr9Si2 S48040 (4Cr9Si2)
3 GB /T 12773-2021
42Cr9Si2

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