Product Details

Precision Cold rolled Seamless steel tubing for automobile

1.Grade:20#(ck20,aisi1020),45#(ck45,aisi1045),st52(16Mn,Q345D),25Mn(STKM13CSt52 Hydraulic Cylinder using Cold drawn Seamless pipe-T),27SiMn

2.ID:30-250mm

3.ID tolerance:H8,H9

4.Surface roughness:Ra 0.02— 0.4μm

5. Final supply condition:cold drawn and stress-relieved(BK+S)

6. Machining allowance:0.5-1.5mm

7.Wall thickness:10%×ID

Hydraulic pneumatic liner actuator standard/size/precise

Processing the form	Cylinder diameter	Length	Straightness	Dimensional accuracy	Wall thickness	Inner hole roughness
cold drawn	48~325	≤12m	0.3~0.8mm/m		±10%	0.8~1.6µm
honing	48~325	≤10m	0.3~0.8mm/m	H8~H9	±10%	0.3~0.8µm
roling	50~250	≤ 9m	0.3~0.8mm/m	H7~H9	±10%	0.01µm

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/ mm2	>15%	>85HB

Dimension tolerance

ID size

ID deviation (mm)

H10

+0.021

+0.033

+0.052

+0.084

>30~50

+0.025

+0.039

+0.062

+0.100

>50~80

+0.030

+0.046

+0.074

+0.120

>80~120

+0.035

+0.054

+0.087

+0.140

>120~180

+0.040

+0.063

+0.100

+0.160

>180~250

+0.046

+0.072

+0.115

+0.185

>250~315

+0.052

+0.081

+0.130

+0.210

>315~400

+0.0527

+0.089

+0.140

+0.230

Material range of YANTAI XINPENG

Steel Grade
DIN	1629	ST 37 / 44 / 52
	1630	ST 37.4 / 44.4 / 52.4
	2391-2	ST 35 / 45 / 52
EN	17204	C22 – Ck 22 – Cm22 – C35 – Ck 35 – Cm 35 C45 - Ck 45 – Cm 45 – 34 CrMo4
	17210	C15 – Ck 15 – Cm 15 – 16MnCr5
	10305-1	E215/235/355/255 26Mn 5 C35E C45E 20V1 (E410) 26Mo2 25CrMo4 42CrMo4
GB	3639	10#, 20#, 16Mn, 45#
ASTM	A 519	1010 1020 1035

Company Information

Yantai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China. Since 2002 cold drawn machine set importing, Xinpeng become a big precision steel pipe manufacturer with 500Mt month productivity in the next 12 years.

Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.

Our Customers

Our Clients

Our Clients

Our Workshop

Our Company is equipped with JLB250T hydraulic cold drawn machine set,LD120 precision cold rolled machine set, multiple precision straightening machine,box heat treat furnaces(8000-10000mm), advanced CNC skived and roller burnished machine SRB-6000mm, several powerful honed machine, combined cold drawn, cold rolling, heat treatment, and SRB process to produce the best quality products.

Application

Hydraulic cylinder tube st52 din2391 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, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.

Package

As per to customers' request Good Packing is siutable for long distance ocean shipment

FAQ

1. What is your main market?

Mid East, South America, South Asia, Africa, Southeast Asia,Europe, etc.

2. Are you factory?

Yeah, we are.

3. What is your term of delivery?

We accept EXW, FOB, CIF, etc. You can choose the one which is the favorite or cost effective.

4. What is the delivery time?

If we have the raw material, we can send goods about 20 days. If not, we will about 30 days for delivery.

Our Services