GB / T3077-1999 20CrMnMo Alloy Steel Forgings, Forged Steel Valve
For Gas / Oil Industry
The alloy steel forgings are widely used for shipbuilding, gas
&oil industry, pressure vessel, wind power and mining and other
The manufacturing equipment is 16~185MN hydraulic press, the
forging ratio >4.5, the technical condition is in accordance
with the standard of EN, ASTM, DIN and GB etc.
The product can be provided as per your drawing or specified
Smelting Process:EF+LF + VD
The process as follow :Ingot →heat → forging → Heat treatment
(Normalizing+ tempering) → Inspection →rough machining→UT→2nd Heat
treatment →finishing machining →Inspection
Applications: The alloy steel forgings are widely used for
shipbuilding, gas &oil industry, pressure vessel, wind power
and mining and other industries.
Quality control and management to the whole produce process,
including ingot smelting, forging, heat treatment, machining and
strictly final inspection prior to delivery.
Excellent product quality and service, competitive price, “in-time”