China 17-4pH 2205 S31803 Alloy Steel Forged Drive Shaft

Products reference:
Forged shafts are use in industry, such as forging equipment; power plant equipment; hydraulic equipment; rolling mill equipment; petroleum machinery, etc.
The production process as "EF + (LF) + (VD) + ESR + forging and annealing (or normalizing) + heat treatment (quenching and tempering) + Machining + packaging + delivery. "
Quality control: chemical analysis, optical spectrum instrument, Mechanical properties for tensile strength, yield stress and elongation. Hardness testing, impact testing, coordinate measuring machine (CMM), metallographic analysis, magnetic flaw detector, Ultrasonic flaw detector.

Material50Mn,25Cr2Ni4MoV,34CrNiMo6,SUS316L,35#Max length20000MMApplicationMarine engine,diesel engine pull rod,connect to oil cylinder transmision functionMelting processEF+LF+VDProduction process
Forging+heat treatment+rough machining+finish machiningForging ratio ≥3.5 Applicable standardASTM,ASME,DIN,JIS,ISO,BS,API,ENExecutive standardJB/GB/EN/DIN/JIS/ASME/ASTM/ISOCertification authorityABS,DNV,BV,GL,KR,CCS,LR,NK,RINA,RSDelivery term Rough machining(N+T);finish machining(Q+T)Test equipment Spectrograph,UT device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,hardness test machineserviceOur service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer's requirements as the principal thing, and pay attention on the products quality.

3, Custom properties

Material elementsCSiMnPSCrNiMoV50Mn0.48-0.560.17-0.370.70-1.00≤0.035≤0.035≤0.25≤0.30---35#0.32-0.390.17-0.370.50-0.80≤0.035≤0.035≤0.25≤0.30 25Cr2Ni4MoV≤0.25≤0.23≤0.53≤0.006≤0.004≥1.62≥3.75≥0.33≥0.0934CrNiMo60.30-0.38≤0.0400.50-0.80≤0.035≤0.0351.30-1.701.30-1.700.15-0.30 316L0.0301.002.000.0450.03016.0-18.010.0-14.02.00-3.00

Mechanical property
Dia.(mm)
TS/Rm(Mpa)
YS/Rp0.2(Mpa)
EL/A5(%)
RA/Z(%)
Type Of notch
Impact energy
HBW50MnØ25≥645≥390≥13≥40V≥31≤255HBS35#Ø25≥530≥315≥20≥45V≥55≤197HBS34CrNiMo6Ø15750-900450-600≥13≥55V-40ºC≥20≤269HBS316LØ15≥485≥170≥30≥40 ≤187HBS

4, Process procedure:
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment

How to pack