Product Details

Product Description

Cold drawn Bk seamless aisi 4140 steel pipe and tube

Grade:20# 45# Q345B Q345D 25Mn 27SiMn E355 SAE1026

Standard:GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519

Grade	chemical composition%
Grade	C	Si	Mn	P	S
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035
SKTM13C-T(25Mn)	0.22-0.29	0.17-0.37	0.70-1.00	0.035	0.035
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.035	0.035
E355	≤0.22	≤0.55	≤1.6	0.025	0.025
Q345B	≤0.2	≤0.5	1.00-1.60	0.030	0.030
Q345D	≤0.2	≤0.5	1.00-1.60	0.030	0.030
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90	0.040	0.050

ID 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

Best quality cold rolled tube manufacturer, cold rolled pipe

Hydraulic cylinder tube is a kind of after cold rolling processing of a kind of high precision steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layers, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc. It is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C, Si, Mn, S, P, Cr.

The difference between precision steel pipe and seamless pipe:

1. The seamless steel tube with obvious difference is that dimensional accuracy can be up to 0.1mm.

2. High precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.

Hydraulic cylinder tube features:

Hydraulic cylinder tube inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing

1. The smaller outer diameter

2. High precision to do small batch production

3. Cold drawn finished products of high precision, good surface quality

4. The steel pipe transverse area is more complex

5. Steel pipe is superior performance, dense metal

Cold drawn(rolled) precision steel pipe and the general difference between ordinary seamless steel pipe:

1, the general characteristics of ordinary seamless steel pipe is welded seam, can withstand greater pressure. The product can be very rough as cast or cold parts.

2, cold drawn precision steel pipe is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.

Cold drawn (rolled) precision steel pipe features:

1. smaller diameter.

2. High precision can be done small batch Health

3. Cold drawn (rolling) finished high precision, good surface quality.

4. Steel pipe cross-sectional area is more complex.

5. Steel pipe performance is superior, the metal is relatively dense.

Packaging & Shipping

packaging details:

1.bundle with steel strips

2.brand parcel

3.wooden box

4.as clinets request

delivery details: 15days after payment

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 manufacture 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.

1. Hydraulic Cylinder Tube------Main products of Xinpeng,

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

2.SRB tube ----- used in Elevator buffer and Hydraulic Cylinder .

This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.

3. Cold finished tube---- Widely Used.

Processing range 30-300mm, biggest length is 11M.

Xinpeng Have passed ISo9001 verified from 2015; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.

our processing

application

1. Construction categories are: the bottom of the pipeline transport up to more, cover the floor when the extraction of groundwater, boiler hot water transport and so on.

2. Machining, bearing sets, processing machinery parts and so on.

3. Electrical class: gas transmission, water generation fluid pipeline.

4. Wind power plant anti-static tube

Seamless steel pipe is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, car drive shaft, bicycle frame and steel scaffold used in construction and other steel ring manufacturing parts, can improve material utilization, simplify manufacturing processes, Materials and processing time, has been widely used to manufacture steel.

FAQ

testing

1.portable hardness tester

2.wall thickness gauge

3.ultrasonic flaw detector

4.digital rockwall hardness tester

5.tensile testing machine

6.USA import UT test machine

Our Services

Advantage of Product

1)Professional & skilled, reliable.
2)One-stop total solution
3)ready stock goods with fast delivery
4)Small quantity is acceptable

5)Best price with good quality.