Delivery Time:30-50 days
Certification:JB/GB/EN/DIN/JIS/ASME/ASTM/ISO9001

Heat Treatment Gear Blank Forging QT Alloy High Precision Gear Shaft ​

Product Description

Alloy steel material after heat and nitriding treatment,carburizing,quenching treatment to reach gear strength,precision gear shaft after gear grinding to meet required precison,trilinear coordinate measuring machine to check the accuracy.

Commerce clause

Max weight	30T
MOQ	1PC
Delivery time	30-50Days
Package	Plywood case,wooden pallet,steel frame
Delivery terms	FOB;CIF;CFR；DDU；
Payment terms	T/T,LC
Type of shipping	By ocean,air

Specification

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Others
20CrMnMo	0.17-0.23	0.17-0.37	0.90-1.20	0.035	0.035	1.10-1.40	0.30	0.20-0.30	0.17-0.23
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
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
4340	0.38-0.43	0.15-0.35	0.60-0.80	≤0.035	≤0.040	0.70-0.90	1.65-2.00	0.20-0.30	-

Mechanical properties	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
20CrMnMo	Ø15	≥1180	≥885	≥10	≥45	V	≥55	≤217HBS
34CrNiMo6	Ø15	750-900	450-600	≥13	≥55	V	-40℃≥20	≤269HBS
18CrNiMo7-6	Ø15	≥980	≥785	≥9	≥40	V	≥47	≤269HBS
4340	Ø15	≥980	≥835	≥12	≥55	V	≥78	≤179HBS

Our Service

Our 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.

Competitive Advantage

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; Quality full service.

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