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18CrNiMo7-6 stainless steel 4340 ASTM Forged Cylinder

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18CrNiMo7-6 stainless steel 4340 ASTM Forged Cylinder

Country/Region	china
City & Province	jiangsu

Product Details

Forged Cylinder Hydraulic Cylinder,Oil Cylinder Forings

18CrNiMo7-6 4340 Forged Cylinder Hydraulic 6000T Open Die Hydropress

Simple Products Description:

Hydraulic cylinder,blind hole oil cyclinder,cylinder sleeve,gun barrel

Hydraulic cylinder is the hydraulic executive components that can transfer hydraulic energy into mechanical energy,lubrication and increase pressure function.

Products reference:

Type: 4140,4330,18CrNiMo7-6,4340
Material: Carbon steel, alloy steel, stainless steel or other kind of material
Forging equipment: 6000T open die hydropress
Application: Metallurgy,mine,press machine
Melting process: EF+LF+VD
Production process: Forging+heat treatment+rough machining+QT
Forging ratio: ≥3.5
Delivery term: Rough machining(N+T);QT

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 property	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
4140	Ø15	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

Why choose HUIXUAN?

HUIXUAN is a directly professional manufacturer with over 10 years experiences specialized in producing custom forging machining parts.
The company is able to meet your high quality standard, performs 100% QC test, certification:ISO9001-2008.
HUIXUAN specializes in all kinds of material , surface treatment and heating treatment. Fast & flexible turnaroun,100% on-time delivery.
HUIXUAN only takes reasonable profit , competitive price will be our greatest advantage.
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.