Japan Datong GFA mold steel chemical composition: C C Si Cr Mn Mo V V W W S S P Ni Ni-P mold steel features GFA: GFA is a forging die steel, wear resistance, crack resistance, excellent performance. GFA mold steel use:: for precision forging mold, resistance to heat load of high toughness die casting, extrusion tools, cutting blades, etc.. GFA composition: C: 0.55% Si: 0.2% Mn: 1.0% Ni: 1.65% Cr: 1.1% Mo: 0.5 V: 0.13 GFA factory condition: ≤ 241HB hardening temperature: 850 ~ 900 ℃ Cooling method: cold tempering oil Temperature: 200 300,400,500,600,650 hardness (HRC): 58 55 51 48 42 38 

 Main products are as follows: 
 1 Sweden Assab ASSAB: 
 S136, S136H, 166,168,8402,8407,635,635 H, S7, 618,618 HH, 718,718 H, DF-2, DF-3, XW-5, XW-160, XW-41, XW-42, HSP-41, KM2 , V-4, V-10, ASP-23, ASP-30, ASP-60, ELMAX, 4140 (high-tensile steel). 
 2 Austria Bluff BOHLER: 
 K110, K100, K107, K340, M238, M300, M310, M340, M201, M202, W302, W321, K460, S390PM, S590PM, S690PM 
 3 German Sa Site SAARSTAHL: 
 GS-1.2711, GS-1.2738H, 738, GS-2688, GS-1.2316, GS-1.2316H, GS-1.2083, GS-1.2344EFS, GS-1.2344ESR, GS-1.2311, GS-1.2312, GS-1.2379, GS-1.2510, GS-1.2767. 
 4. HITACHI HITACHI: 
 SGT, SKS3, SKD11, SLD, SLD8, HPM7, HPM50, HPM38, DAC, FDAC, DAC55, SKD61. 
 5 Japan Datong DAIDO: 
 GOA, DC11, DC53, PDS5, PX88, YK30, NAK55, NAK80, PAK90, SKH9.DH2F, S-STAR (A). 
 6. U.S. Steel mold 
 P20, 420, L6, H13, A2, D2, H13, O1, S1, S7, O2, M35, M42, 3115,5120,4130. 
 7. Made of steel mold 
 S136, S136H, NAK-80, T10, T15, 45 #, Ace Steel, Cr12, Cr12Mov, D2, P20, H13, 718,718 H, A3 and so on.