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Cold Work Tool Steel
Cold Work Tool Steel
Equivalent Grades. 
American German Japanese China Poland
(W.Nr.) (DIN)
AISI D-2 1.2379 X155CrVMo12-1  SKD-11 Cr12MoV -
AISI D-3 1.208 X210Cr12 SKD-1 Cr12 NCll
AISI O-1 1.251 100MnCrW4 - 9CrWMn -
AISI O-7 - - - - -
AISI A-8 - - - - -
AISI S-1 1.2542 45WCrV7 - - NZ2
Die Blocks L-6 1.2714 35CrMo8 - - WNLV
SAE-52100 - - - - -
K310 1.2327 - - - -
Chemical Composition
C Si Mn P S Cr Mo V W
AISI H-11 0.36-0.42 0.90-1.20 0.30-0.50 0.00-0.030 0.00-0.030 4.80-5.50 1.10-1.40 0.25-0.50 -
AISI H-13 0.37-0.43 0.90-1.20 0.30-0.50 0.00-0.030 0.00-0.030 4.80-5.50 1.20-1.50 0.90-1.10 -
AISI H-10 0.35-0.45 0.80-1.20 0.25-0.70 - - 3.00-3.75 2.00-3.00 0.25-0.75 -
AISI H-21 0.30-0.40 0.15-0.30 0.20-0.40 - - 3.00-3.75 2.00-3.00 0.30-0.50 8.75
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