alloy 4130 4140 30CrMo precision cold finished seamless pipe

alloy 4130 4140 30CrMo precision cold finished seamless pipe

1.Product Name: alloy 4130 4140 30CrMo precision cold finished seamless pipe

2.Outer Diameter: 30-300mm

3.Wall Thickness: 2-30mm
4.Material Grade: 20# 45# 16Mn 25Mn 27SiMn E355 ST52 CK45 STKM13A STKM13C S45C SAE4130 4140 
5.Package: Standard export packing or as client’s request
6.Delivery Condition: BK/BKW/BKS/GBK/NBK
7.Delivery Time: Within 20-30 days after receiving payment or as client’s request
8.Trade Terms: FOB Yantai, Qingdao, or as client’s request
9.Payment Terms: T/T or L/C or as client’s request
10.Supply Ability: 500 metric tons/per month

11.What we can provide are seamless pipe, carbon steel pipe, cold drawn pipe, cold rolled pipe, honed tube, hydraulic cylinder tube, cylinder pipe, and so on.

seamless tube, carbon tube, cold drawn steel tube, cold rolled steel tube, honed steel pipe, hydraulic tube, cylinder tube, etc.

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Our Precision Steel Tube

ld drawn pipe, cold rolled pipe

After pickling, phosphating, our seamless pipe can do deep work such as cold drawn, or cold rolled.

This process can change the size of OD, ID, WT and the mechanical property of the carbon tube.

Roughness: ra1.6-3.2 

Straightness: 1:1000mm

2.honed tube,SRB tube

A:  IDHoned

Utilize an abrasive stone,which turns while being moved in and out of the work piece.

The honing process makes :
1)Smooth surface finishes inside bores
2)Hold precise tolerances on bore diameters 

ID H8 H9 H10
ID roughness 0.4-0.8μm

B:  ID Skiving and roller burnishing

Two thin chips are cut at high feed rate while the tool passes through the workpiece,

producing mirror inner,with a bore precise tolerance .

ID H8 H9 H10
ID roughness 0.2-0.8μm
ID max 250mm

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Our Processing 

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Our Company

Established in December 1992, Yantai Xinpeng Steel Pipe Co., Ltd. has been a professional hydraulic cylinder tube manufacturer over 20 years.

Xinpeng are equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace,strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.Strictly comply with the ISO9001 System, assure the best quality of seamless pipe.

What we can provide are seamless steel tube, cold drawn steel tube, cold rolled steel tube, honed steel tube, hydraulic cylinder steel tube, and so on.

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Usual Size

1.100% quality satisfaction guarantee following with ISO9001 verified

2. professional package which can assure long distance sea transportation

3. delivery in time

4. more than 20 years experience specializing in steel trading line

5.alibaba trade assurance supplier

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FAQ