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Home Material GB 9943-1988
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Grade W18Cr4VCo 5
Corresponding Standard GB 9943-1988
High Speed Tool Steel Bars-Technical Requirement
Classification Tool Steel
W18Cr4VCo 5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo W V Co
Minimum Value 0.7 0.2 0.1 - - 3.75 - - 0.4 17.5 0.8 4.25
Maximum Value 0.8 0.4 0.4 0.03 0.03 4.5 0.3 0.25 1 19 1.2 5.75
W18Cr4VCo 5 Mechanical Properties
condition Heat Treatment or Condition
Hardness
HBW
Delivery condition Annealing ≤269
Delivery condition Other Processing Methods ≤285
sample Quenching and Tempering HRC
≥63
1 Approximate Comparison Table High-Speed Tool Steels
China Japan South Korea United States International Organization for Standardization Germany United Kingdom
GB JIS KS ASTM/AISI ISO DIN EN/DIN BS EN/BS
W18Cr4VCo5 SKH3 SKH3 T4 HS18-1-1-5 S18-1-2-5 T4
2 Approximate Comparison Table High-Speed Steel 2
China Taiwan, China Japan South Korea United States Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS14 BS EN/BS
W18Cr4VCo5 T71845 SKH 3 SKH 3 SKH 3 T4 T12004 S 18-1-2-5 1.3255 HS 18-1-2-5 ≈Р18К5Ф2 254 HS 18-1-2-5
BT4

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