1. Product name: High Quality Open Die Forging Large Internal Gear Ring
 
2. Raw material:
Wind Turbine     42CrMo4V, 34CrNiMo6
Marine Forging     C-Mn steel
Gear shaft     17CrNiMo6;18CrNiMo7-6;20CrNi2Mo;42CrMo;47CrNiMo6;20CrMnMo;8822H
Forged shaft     42CrMo4,50Mn,C45,AISI4130;AISI4330;AISI4150;AISI4350;AISI4340;410SS and so on
Vavle forging     SA105,SA350LF2,LF6,F304,F316,304L,316L,F51,F53,F321,etc
Forged ring     42CrMo4,P289GH,S355G2,1.4923,1.4301F316,F304,F51,F53,F55
Pressure Vessel forging     SA105, SA350 LF2, 16Mn, S355J2,20MnMo, 15MnMo, 12Cr2Mo1, 14Cr1Mo, 42CrMo,AISI 4130,AISI4330,SA266,SA182,SUS304,SA336 and so on
 
 
3. Supply range:OD.200-800 mm,Weight 15T at most
 
4. Standard: ISO, GB, ASTM, DIN, JIS
 
5. Process: EAF + LF + VD + Forged + Heat Treatment (optional)
 
6. Heat treatment: Normalized / Annealed / Quenched / tempered
 
7. Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
 
8. Inspection Equipments: Metallurgical analysis, Tensile strength tester, Hardness tester, Altimeter, Scale Micrometer, pressure tester, etc.

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