Product Details

SAE4140 ST52 SEAMLESS STEEL HYDRAULIC CYLINDER HONED TUBE

Product Description

STANDARD:DIN2391 ASTM A29/A29M-04

GRADE:SAE4140 ST52 C20 S45C

HEAT TREATMENT:BKS

OD:40-610MM

ID:20-300MM

ID TOLERANCE:H7-H9

LENGTH:0.5-9MTR

STRAIGHTNESS:1/1000

ID ROUGHNESS:Ra 0.4micron(max)

TECHNOLOGY:HONED&SRB(SKIVED AND ROLLER BURNISHED)

A. SAE4140 SEAMLESS HONED TUBE INSIDE IS VERY SMOOTH WIHTOUT THREAD

B.SAE4140 SEAMLESS HONED TUBE INSIDE WITH THREAD

CHEMICAL COMPOSITION (%)

C	SI	MN	P	S	CR	NI	MO	CU
0.38~0.45	0.17~0.37	0.50-0.80	0.035	0.035	0.90-1.20	0.30	0.15-0.25	0.35

MECHANICAL PROPERTIES(MPA)

σb (MPa)	σs (MPa)	δ5 (%)	ψ (%)	Akv (J)	αkv (J/cm2)
≥1080(110)	≥930(95)	≥12	≥45	≥63	≥78(8)

HARDNESS:≤217HB

C.SAE4140 SEAMLESS HONED TUBE SURFACE IS VERY SMOOTH

Our Services

Products introduction: We mainly produce and deal with carbon steel pipes and alloy steel pipes.In addition,

steel rods, steel sheets, steel building materials and machinery parts are also our general trading products.

We are not only a manufacturer but also a stock keeper. We normally keep more than 5,000 tons of pipes in

various sizes and standards. Our stock pipe size ranges from 20mm to 762mm in outside diameter and from

2mm to 85mm in wall thickness.

Export to: With competitive price and excellent quality our products have been exported to America,Japan,Greece,

Russia,Spain, Chile and many other countries. I hope we can establish business relationship with you and

expand your business scale. we are professional and experienced supplier of steel products in china. We will

provide you with high quality and low price, and we also offer good service. If our products can meet your needs,

please contact us freely. We are looking forward to cooperating with you, and welcome your inquiry!

Contact information:

AMY ZHANG

PH:+86-15954925206(WECHAT)

Fax:+86 635 2112698

WHATSAPP:+86 15954925206

Skype:amy_zh9

Website: http://kcsteelpipe.en.china.cn