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Coupling Steel Power Transmission Shaft Forging 4340 4140 18CrNiMo7-6 4330

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Address: A 509,HuaJian Mansion,Zhangjiagang City,JiangSu Province,China

Contact name:Arnold

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Coupling Steel Power Transmission Shaft Forging 4340 4140 18CrNiMo7-6 4330

Country/Region	china
City & Province	jiangsu

Product Details

Coupling Steel Power Transmission Shaft Forging 4340 4140 18CrNiMo7-6 4330 

Products:
Mining equipment parts,coupling transmission shaft,main shaft,transmission forging,mining machinery forging,shaft tube,extension sleeve,cardan joint

Product reference

Material	4340,4140,18CrNiMo7-6,4330
Forging equipment	6000T open die hydropress
Applications	Transmission components of mining machinery,transmission and connection function
Melting process	EF+LF+VD
Production process	Forging+heatment+rough machining+Q+T+finish machining
Forging ratio	≥3.5
Applicable standards	ASTM,ASME,DIN,JIS,ISO,BS,API,EN
Executive standards	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),nitriding quenching
Test machine	Spectrograph,UT device,tensile and compact device,metalloscope,outside micrometer,bore dial indicator,trilinear coordinate measuring machine,hardness test
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.

Custom properties:

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Others
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	-
4330	0.28-0.33	0.10-0.35	0.85-1.15	≤0.020	≤0.020	0.80-1.10	1.10-1.40	0.35-0.55	-
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
4140	Ø10	740~1000	450~850	≥12	≥25	V	≥40	≤250HBS
4330	Ø10	≥1000	≥740	≥12	≥25	V	≥42	--
18CrNiMo7-6	Ø15	≥980	≥785	≥9	≥40	V	≥47	≤269HBS
4340	Ø15	≥980	≥835	≥12	≥55	V	≥78	≤179HBS

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

Commerce clause

Max weight	40T
MOQ	1PC
Delivery time	30-50days
Package	Poly wood case, wood pallet, steel frame support
Delivery terms	FOB;CIF;CFR；DDU；
Payments terms	T/T,LC
Type of shipping	By ocean,air

Keywords

Main transmission components of heavy mining equipments compose of axle tube,extension sleeve,cardan joint.common material incledes alloy steel and nitriding steel.

Features