12CrMo Seamless Steel Tubes For Petrleum Cracking

TORICH GB/T9948 12CrMo Seamless Steel Tubes For Petrleum Cracking 

Standard: GB/T 9948-2006

Size Range: OD: 4-420mm      WT: 0.5-50mm       Length: 4-12.5mm

Application: Drill Pipe, For Petrleum Cracking

Material: 10#, 12CrMo

Technology: cold drawn

Characteristic: 

Good concentricity

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

The Tolerances of Outer Diameter and Wall Thickness     Unit:mm

Sort Code	Manufacuring Method	Nominal Size		Tolerances
				Common Level	High Level
W-H	Hot Rolling (Extrusion)	Outer Diameter	≤54	±0.50	±0.30
			>54~325	±1%D	±0.75%D
			>325	±1%D	-
		Wall Thicknass	≤20	+15%S -10%S	±10%S
			>20	+12.5%S -10%S	±10%S
	Hot Expand	Outer Diameter	All	±1%D
		Wall Thicknass	All	±15%S
W-C	Cold Drawn(Rolling)	Outer Diameter	≤25.4	±0.15
			>25.4~40	±0.20
			>40~50	±0.25
			>50~60	±0.30
			>60	±0.75%D	±0.5%D
		Wall Thicknass	≤3.0	±0.3	±0.2
			>3.0	±10%S	±7.5%S

 The Tolerance of Minimum Wall Thickness     Unit :mm

Sort Code	Manufacturing Method	Minimum Wall Thickness    Smin	Tolerance
			Common Level	High Level
W-H	Hot Rolling(Extrusion)	≤4.0	+0.90 0	+0.70 0
		>4.0	+25%Smin 0	+22%Smin 0
W-C	Cold Drawn(Rolling)	≤3.0	+0.6 0	+0.4 0
		>3.0	+20%Smin 0	+15%Smin 0

TorichInternational Co.,Ltd is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes.

Our main products:Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Tube.

Our factory was established since 1997, with the name of Haiyan SanxinSteel Pipe Co., Ltd. The factories`  technicians are of great engineering experience in steel pipe industry for more than 20 years, who are in great command of production technology for Cold Drawing and Cold Rolling, as well as heat treatment and inspection. So we have strong technician team and manufacturing capability.

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, and it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but you need to pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance , balance before shippment.
If you have another question, pls feel free to contact us

 TORICH GB/T9948 12CrMo Seamless Steel Tubes For Petrleum Cracking