We are one leading producer of P355NH(1.0565,F91.F92,F6NN,17-4Ph,)Forged Forging Forge Steel spigots(AISI 41404340,42CrMo4,F11,F22,F51.F53) factory from china.
We could produceP355NH(1.0565,F91.F92,F6NN,17-4Ph,)Forged Forging Forge Steel spigots(AISI 41404340,42CrMo4,F11,F22,F51.F53) with diameters ranging from 100MM to 1200MM, with lenth from 100MM to 10000MM, the weight from 10KGS to 15000KGSs

Welcome the inquiry,
Heat treatment:
Normalized / Annealed / Quenched / tempered
Surface Treatment:
painting,plating,polishing,black oxide,transparent anti-rust oil
Quality control:
UT,MT,RT,PT,chemical composition test,mechanical property test,etc.
Inspection:
1, Raw material certificate(material chemical composition) 2, Heat treatment sheet report
3, Dimension inspection report      4, UT test report 
Delivery condition:
Hot forged +Rough machined (black surface after Q /T)+ Turned 
Competitive Advantage:
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" delivery