Forged Roller Wind Turbine Main Shaft

Product Description

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo
34CrNiMo6	0.30-0.38	≤0.040	0.50-0.80	≤0.035	≤0.035	1.30-1.70	1.30-1.70	0.15-0.30
4140	0.38-0.43	0.15-0.35	0.60-0.90	≤0.035	≤0.040	0.80-1.10	-	0.15-0.25
18CrNiMo7-6	0.15-0.21	0.17-0.35	0.50-0.90	≤0.025	≤0.025	1.50-1.80	1.40-1.70	0.25-0.35

Mechanical properties	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
34CrNiMo6	15	750-900	450-600	≥13	≥55	V	-40ºC≥20	≤269HBS
4140	10	740~1000	450~850	≥12	≥25	V	≥40	≤250HBS
18CrNiMo7-6	15	≥980		≥9	≥40	V	≥47	≤269HBS

34CrNiMo6 Wind Turbine Forged Shaft Detailed Product Description
Material: Steel,Alloy Steel
Size: According to drawings
Heating Treatment: N+T Q+T
Forging Ratio: ≥3.5
Melting Process: EF+LF+VD
Application: Industry
Advantage: Strict Quality Control
Specification:6000T Open Die Hydropress
Material:34CrNiMo6,18CrNiMo7-6,4140
Max power:5MW
Application:Transmission function in main engine box of wind power generator
Melting process:EF+LF+VD
Production process:Forging+heat treatment+rough machining+finish machining
Forging ratio:≥3.5
Applicable standard:ASTM,ASME,DIN,JIS,ISO,BS,API,EN
Executive standard:JB/GB/EN/DIN/JIS/ASME/ASTM/ISO
Certification authority:ISO,BV,SGS, IST, UL,CTI
Delivery terms: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 machine
Features: High-precision dimensional tolerance;
Excellent mechanical properties;
Produce different dimension based on customer's requirements;
Advanced manufacture equipments and inspection devices;
Excellent technical personality;
Control the production procedure strictly;
Pay attention on the package protection;
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