Product Details

Hydraulic cylinder seamless cold rolled din2391 precision steel tube

Company Information

About our company:

It is located in Yan Tai. our company mainly produces various specifications of cold-drawn precisions seamless steel tube and hydraulic precision cylinder tube , and our products are widely used in hydro-cylinder, automobile, engineering machinery ,textile machinery, printing machinery ,oil drilling, tec. We warmly welcome new and old customers to our company to negotiate business.

Product Description

Product description:

We produces various precision seamless steel tube and agent high precision cold-drawn welded tube (DOM) of Italy Marcegaglia. Our products such as :

• cold drawn precision seamless steel tube

• cold rolled steel tube

• honed tube

• SRB tube

Commodity name: DIN 2391 ST52 cold drawn precision seamless round tubes

Production	Steel pipe / steel tube
Standard	DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713
Inner Diameter	30mm~250mm
Wall Thickness	0.5mm~18mm
Material	10#~45#,16Mn,Q195~Q345,ST35~ST52
Length	as customers required
Surface treatment	As customers required
Package	1. bundle packing 2. marking as per customer's requests 3. paint on the pipe as per customer request 4. pipe caps as customer reques
Min Order Quantity	According to customer's requirement
Payment terms	L/C, T/T
Contact	If you have any questions, please feel free to contact me.
Delivery conditions	1. NBK(+N) after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium 2. GBK(+A) after cold forming, annealing in non oxidizing medium protective gas 3. BK(+C) the final heat treatment after cold forming, therefore small steel pipe plastic, the plastic degree does not guarantee 4. BKW(+LC) after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring) 5. BKS(+SR) have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

Mechanics performance:
Material	Tensile strength	Yield strength	Elongation	Hardness
CK20/20#/AISI1020	>520 N/ mm2	>375 N/mm2	>15%	>85HB
CK45/45#/AISI1045	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
ST52/16Mn/Q345D	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
25Mn/STKM 13C-T	>600 N/ mm2	>530 N/	B

Variety :
Processing	Cylinder Diameter	Straightness	Size Accuracy	W.T/mm	Inner Bore Roughess
Cold drawn/cold rolled	ID30-250	0.3	H9-H11	±10%	0.4~1.6um
Honed tube	ID50-250	0.3	H7-H9	±10%	<0.4um

About our work flow:

Packaging & Shipping

About our test equipment:

About our certificate:

Our Services

Why you choose us?

•Our company established in December 1992, so we have 23years experience in tube manufacture

•We have the best service, quality, competitive price, and high reputation in the tube world

•We can supply all kinds of steel pipes such as:

∞hot rolled/cold drawn seamless steel tubes

∞precision steel tubes

∞honed and skived tubes

∞cold drawn welded tubes (DOM tubes)

About our deliver conditions:

1. Standard packing with plastic caps and strapped bundles.

2. Commercial length 2000~10500mm,custom lengths upon request

3. Surface protection

About our service:

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

2. Flexible terms of payment by T/T and L/C
3. Big discount for repeat customers
4. Smooth delivering procedure

we can supply all kinds of steel pipes such as hot rolled seamless steel pipes ,cold drawn seamless steel pipes,honed pipes,cold drawn welded tubes(DOM tubes).

Welcome to inquiry at any time, we will try our best to serve you.