Specifications

thick wall seamless steel pipe
1.centrifugal cast or forge
2.thick wall
3.Big OD
3.high precision of the machined surface

 

 

Centrifugal casting/forging thick wall seamless steel pipe with Big OD, high precision of machined surface

 

Company profile

We are the manufacturer specialized in machining heavy duty deep-hole casting & forging parts for nearly 18 years.Our products, such as Centrifugal Casting Pipe, Forging Hollow Shaft, Shaft Sleeve, Drill Pipe, Cast Pipe Mold, Heavy Duty Hydraulic Cylinder, are widely used in coiled material, petroleum, metallurgy, mine, machinery and transportation industry. etc. 

 

Product List

Name	Technique	Material	Dia/mm	Wall thickness	Length
Big OD Seamless pipe	Centrifugal cast & forging	iron steel, alloy steel,carbon steel	200-800	≥15mm	500-2000
Hollow shaft	Forging	alloy steel, carbon steel	150-800	≥15mm	≤17000
Sleeve for coiled material	Centrifugal cast	chilled iron still, ductile iron steel.etc	400-700	≥15mm	≤18000
Drill pipe	Hot rolled & forging	alloy steel (ASTM4140)	standard	standard	standard
Hydraulic cylinder	Forging	alloy steel and carbon steel	300-700	≥10mm	≤10000
Other parts in deep-hole	cast, forged ,rolled	iron steel, alloy steel, carbon steel	80-1800	----	-----

 

Product Flow

1.Inquiry with drawings in details.

2.Confirm steel material, chemical compositions, mechanical properties, tolerance.

3.Confirm payment terms,order materials or check material in stock.

4.Check material chemical compositions, material weight, dimesions.

5.Cut materials record weight, making mould for casting of pr-hearting for forging.

6.Forging ratios, heat treatment ,dimension check.

7.Rough machining, UT test,heat treatment.

8.Semi-finish, quenching,

8.Fine machining, UT test,  dimension inspection, mechanical properties test.

9.Customer inspection, packing, delivery arrangement.

 

Pictures show