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Grade HS 6-5-3
Germany W-Nr. 1.3344
Corresponding Standard DIN EN ISO 4957-2018
Tool steels
Classification Alloy Steel
Density 8.2 g/cm3
HS 6-5-3 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo W V
Minimum Value 1.15 - - - - 3.8 4.7 5.9 2.7
Maximum Value 1.25 0.45 0.4 0.03 0.03 4.5 5.2 6.7 3.2
• Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser, other than for the purpose of finishing the heat . All reasonable precautions shall be taken to prevent the addition from scrap or other material used in the manufacture, of such elements which affect the hardenability, mechanical properties and applicability.
HS 6-5-3 Mechanical Properties
Hardness
HBW
Annealed (+A) ≤269
Quenching and Tempering HRC
≥64
New and Old Grade Replacement List
Corresponding Standard Grade
DIN 17350-1980
Grade
Germany W-Nr.
DIN EN ISO 4957-2018
Grade
Germany W-Nr.
1 Approximate Comparison Table High-speed tool steels
Japan International Organization for Standardization Germany European Standard
JIS ISO DIN EN/DIN W-Nr. EN Numerical Grade
SKH53 HS6-5-3 HS6-5-3 1.3344 HS6-5-3 1.3344
2 Approximate Comparison Table High-speed tool steels
China Japan South Korea United States International Organization for Standardization Germany
GB JIS KS ASTM/AISI ISO DIN EN/DIN
CW6Mo5Cr4V3 SKH53 SKH53 M3 HS6-5-3 HS6-5-3
3 Approximate Comparison Table
China Japan United States Germany
GB JIS ASTM DIN EN/DIN W-Nr.
CW6Mo5Cr4V3 SK H53 M3-2 S6-5-3 1.3344
4 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF SS14 BS EN/BS
CW6Mo5Cr4V3 T66545 SKH53 SKH53 SKH53 M3 Class 2 T11323 HS 6-5-3 S 6-5-3 1.3344 HS 6-5-3 2725 HS 6-5-3
HS6-5-3 Corresponding Standards(Same grade name, different standards)
1 DIN EN ISO 4957-2018
HS 6-5-3 1.3344
2 ISO 4957-2018
HS 6-5-3 1.3344

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