Product Details

Product Description

Name	astm a53 grade b seamless steel honed pipes
Steel Grade	45#,20#,16Mn,27SiMn, ST-52, steel ,SAE1026
specifications	O.D.:40-325mm(H7-H9) ,W.T.:3-30mm, L:fixed or random(1-10m)
Straightness	0.5 /1000
Roughness(Ra)	0.2 to 0.4micron
Processing Type	cold drawn, honed
Marking	JW, ID, OD
Package	banding with steel strips, braiding parcel at outside
Conservation	Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends
Impact test	(-20°C, 27 J ,only for special requirement)
Length	Max 6M
Surface Treatment	Bared Oiled polished as clients require

mechanical property

Delivery condition	BK Cold finished
Steel Grade	Rm MPa	Elongation A5(%)
ST45	≥550	≥5
ST52(E355)	≥640	≥5
SAE1026	≥640	≥5
45#	≥640	≥5
20#	≥550	≥8

process and details

Process	Diameter	Length	Precision	Inner Hole Roughness
Cold Rolled	30-100mm	≤12 m	H8-H10	0.4-1.6
Cold Drawn	30-250mm	≤12 m	H8-H10	0.8-1.6
Honing	40-500mm	≤12 m	H8-H9	0.4-0.8
Rolling	40-400mm	≤7 m	H8	0.4
Inner Diameter	H8	H9	H10

The difference between honed pipe and seamless steel pipe

1, the main feature of seamless steel pipe is welded joints, can withstand greater pressure. The product can be very rough as cast or cold parts.

2,honed tube is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.

The characteristics of the honed tube

1. smaller diameter.

2. High precision can be done in small quantities

3. High-precision finished products, the surface quality is good.

4. Steel pipe cross-sectional area is more complex.

5. Steel pipe performance is superior, metal is relatively dense

Packaging & Shipping

packaging details:

1.bundle with steel strips

2.brand parcel

3.wooden box

4.as clinets request

delivery details: 15days after payment

Company Information

Yantai Xinpeng Steel Pipe Co., Ltd,established in Dec 1992, with registered capital of 5 million Yuan, we have more than 20 years experience in manufacturing and exporting steel pipe.

Our company mainly produces various specifications of cold finished precision steel pipe, which are widely used in hydraulic Pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.Our company are equipped with JLB250T hydraulic cold drawn set,LED120 cold rolling set, annealing surface, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine. Strictly comply with ISO9001 System, assure the best quality of the products.

our processing

testing

1.portable hardness tester

2.wall thickness gauge

3.ultrasonic flaw detector

4.digital rockwall hardness tester

5.tensile testing machine

6.USA import UT test machine

Our Services

Our service formula:good quality+good price+good service =customer’s trust =Honor business

1. Cargo track service during transporting and feedback service after cargo is loaded on board

2. Flexible terms of payment .