Product Details

Product Name	Precision seamless steel pipe
Outer Diameter	30-250mm
Wall Thickness	2-30mm
Material Grade	20# 45# Q345 25Mn 27SiMn E355
Package	Standard packing or as client’s request
Delivery Condition	BK BKW BKS GBK NBK
Delivery Time	Within 20-30 days after receiving downpayment or as client’s request
Trade Terms	FOB Yantai, Qingdao, or as client’s request
Payment Terms	T/T or L/C or as client’s request
Supply Ability	500 metric tons/per month

Features

1.Precision tolerance

2.Improve machanical property

3.Superior surface finishing

4.Biggest length 11m

5.Application: hydraulic cylinder of heavy machine, textile machine, forklifts, oil drilling and other field.

Technique and Tolerance

Working Method	Range	Size of ID	Tolerance
			ID tolerance			WT(mm)	Ovality	Curvature
			H8	H9	H10	WT(mm)	Ovality	Curvature
Cold Drawn	25-250	>30-50	+0.0390	+0.0620	+0.1000	±5% to 7.5% ID>210mm ±10%	≤0.10-0.20	0.3
Cold rolling	25-150	>50-80	+0.0460	+0.0740	+0.1200
Cold drawn-hone	40-250	>80-120	+0.0540	+0.0870	+0.1400
Cold drawn-SRB	50-250	>120-180	+0.0630	+0.1000	+0.160
Cold drawn-polish	40-250	>180-250	+0.0720	+0.1150	+0.1850
Cold drawn-polish-SRB	50-250	Other size and technique parameter upon request

Processing Line

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.

Acid cleaning- Parkerizing

Cold drawn/cold rolled

Annealing furnace—— stress-relieving

Straightening

Straightness inspecting

Dimension inspecting

Sawing

Lathe

Surface Polishing( If need)

Honed Or SRB

Final Goods

varies specifications we can provide:

cold drawn/rolled pipe

cold finished and stress relieved pipe

honed or SRB pipe

or as client's request

Application

Widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, and other field.

If you are intrested in our products, pls feel free to contact us!