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Home Material GB 9943-1988
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Grade W12Cr4V5Co 5
Corresponding Standard GB 9943-1988
High speed tool steel bars-Technical requirement
Classification Tool Steel
W12Cr4V5Co 5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo W V Co
Minimum Value 1.5 0.15 0.15 - - 3.75 - - - 11.75 4.5 4.75
Maximum Value 1.6 0.4 0.4 0.03 0.03 5 0.3 0.25 1 13 5.25 5.25
W12Cr4V5Co 5 Mechanical Properties
condition Heat Treatment or Condition
Hardness
HBW
Delivery condition Annealing ≤277
Delivery condition Other Processing Methods ≤293
sample Quenching and Tempering HRC
≥65
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
W12Cr4v5Co5 SKH10 SKH10 T15 HS6-5-2 S6-5-2 BT15
2 Approximate Comparison Table High-Speed Steel 1
China Japan United States International Organization for Standardization Germany France Russia United Kingdom
GB JIS ASTM ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
W12Cr4V5Co5 SK H10 T15 HS12-1-5-5 S12-1-4-5 1.3202 Z160WKCV12-05-05-04 Р10К5Ф5 BT15
3 Approximate Comparison Table High-Speed Steel 2
China Taiwan, China Japan South Korea United States Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
W12Cr4V5Co5 T71245 SKH 10 SKH 10 SKH 10 T15 T12015 S 12-1-4-5 1.3202 HS 12-1-5-5 Р10К5Ф5 HS 12-1-5-5
BT15
W12Cr4V5Co5 Corresponding Standards(Same grade name, different standards)
1 GB /T 9943-2008
W12Cr4V5Co5 T71245
2 GB 9943-1988
W12Cr4V5Co 5

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