Product Details

astm standard seamless carbon steel pipe by 20# steel tube

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

Our Company

We are professional supplier of steel tubes, cold drawn steel tube, cold rolled steel tube,

cold drawn honed steel tube, cold drawn rolled honed tube, honed tube, SRB tube, hydraulic cylinder pipe and so on.

Material:20# 45# 16Mn 25Mn 27SiMn ST35 ST52

Standard:GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519

Our Customers

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.

Our Products

Honing tube and rolling tube inside and outside wall oxide layer, to withstand high pressure without leakage, high-precision, high-quality finish, cold deformation, flaring, flattening without cracks a bit, so mainly used to produce pneumatic or hydraulic components products, such as cylinder or cylinders, which can be seamless. Chemical composition of two kinds of materials are C, Si, Mn , S, P, Cr. Relatively speaking rolling tube better than honing tube good.

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 Service