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Steel: H21
Corresponding Steel  
Grade and Chemical  
Composition:
Chemical Composition(%)
Standard/Steel Grade C Si Mn W V Cr
GB/T 1299 3Cr2W8V 0.30~0.40 ≤0.40 ≤0.40 7.50~9.00 0.20~0.50 2.20~2.70
ASTM A681 H21 0.26~0.36 0.15~0.50 0.15~0.40 8.50~10.00 0.30~0.60 3.00~3.75
DIN EN ISO 4957 1.2581(X30WCrV9-3) 0.25~0.35 0.10~0.40 0.15~0.45 8.50~9.50 0.30~0.50 2.50~3.20
JIS G4404 SKD5 0.25~0.35 0.10~0.40 0.15~0.45 8.50~9.50 0.30~0.50 2.50~3.20

Brief Introduction: This alloy is one of the Hot Work, tungsten containing tool steels. The tungsten content is beneficial for hot strength at red heat, although toughness is somewhat reduced. Application: used for hot working dies and tooling such as die casting, extrusion and hot forming of parts.
Shape & Dimension:

Round:60mm-400mm;

Flat:30-240mm*150-610mm

Delivery Condition: Forged, Annealed, Turned/Milled
Note: