Standard:GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519
Grade | chemical composition% | ||||
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 |
delivery condition
delivery condition | direction |
BK(+C) | the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee |
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
|
NBK(+N) | after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium |
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) |
GBK(+A) | after cold forming, annealing in non oxidizing medium protective gas |
we can provide such pipes:
1.Seamless steel tube and carbon tube
Widely used in oil,drilling, gas, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and AISI 1020. We can also offer as customized seamless steel tube.
ld drawn steel tube/cold rolled steel pipe
Grade: 20# 45# 16Mn 25Mn Q345 27SiMn E355 ST52 STKM13A STKM13C
Standard: GB/T8713 GB/T3639 DIN2391 EN10305 ASTMA519
Range: 30-300mm
Length: 11m(max)
The cold process can remove the oxide layer outside to improve surface and offer better mechanical property, also can change ID,OD,WT to meet every client request.
3. Honed steel tube&SRB steel pipe
ID Tolerance: H8 H9 or as client's request
ID Roughness: RA0.4micron(max)
Length: 6m(max)
Inner roughness: Ra0.2-0.8um
Straightness: 1:1000 or customized
This process can improve the roughness of the inner tube to 0.2-0.8um and make tube for cylinder using directly.
4.Hydraulic cylinder steel tube
YanTai XinPeng Steel Pipe Co.,Ltd is established in December 1992. With more than 20 years export experience,XinPeng Steel Pipe has been an influential exporter in the global steel tube products market.
Xinpeng are equipped with JLB250T hydraulic cold drawn set,LED120 cold rolling set, annealing surface, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine. Strictly comply with ISO9001 System, assure the best quality of the products.
packaging details: steel strips bundle
black painting
beveled ends
wooden box
as clients request
delivery details: 15days after 30% payment in advance
A: We are manufacturer .
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, 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 do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment 30% T/T in advance ,balance before shippment.
Q: What's your MOQ(minimum order quantity)?
A: One full 20ft container,mixed acceptable .
Q: What's your packing methods?
A: Packed in bundle or bulk (customed is accepted).
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
1.Hydraulic and penumatic cylinder for automobile
2. Mechanical structure pipe parts in automobile,motorcycles and vehicle
3.Fluid pipe
4.Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel
Our Advantage:
1. High quality seamless steel tube with reasonable price.
2. Wide excellent experiences with after-sale service.
3. Samples can be provided as your requirements.
4. Professional packing teams which keep every packing safety.
5. Every process will be checked by responsible QC which insures every product's quality.
6. Every process can be produced as to our clients' requirements.
7. Any questions can be answered in time after you told us.
8. Quick respond to your inquiry.