YanTai XinPeng Steel Pipe Co.,Ltd located in Yantai, a beautiful coastal city in Jiaodong Peninsula, our company is in the (APEC) Science & Technology Industrial Park, urban area of Yantai, with convenient transportation. Established in December 1992, with registered capital of 5 million yuan .
Our company mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc. Our company is also the distributor of several domestic well-known steel tube plants in Shandong, and mainly distributes seamless steel tubes of all kinds of materials.
Chemical Composition
steel grade | C | Si | Mn | P | S | Cr | Ni | Cu | Al |
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.250 | 0.250 | / | / |
45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.250 | 0.300 | / | / |
Q345B | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.300 | 0.250 | 0.08 | / |
| Q345D | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.030 | 0.030 | 0.250 | 0.250 | 0.150 | 0.015 |
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 | 0.300 | 0.300 | / | / |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.250 | 0.250 | / | / |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.050 | / | / | / | / |
Mechanical Property
| steel grade | cold drawn+stress-relieved (BK+S) (SR) | cold finished(hard)(BK) | |||
| Rm Mpa | ReH Mpa | Elongation | Rm Mpa | Elongation | |
| 20# | ≥520 | ≥375 | ≥15 | ≥550 | ≥8 |
| 45# | ≥600 | ≥520 | ≥10 | ≥640 | ≥5 |
| 16Mn | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
| 25Mn | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
| 27SiMn | ≥760 | ≥610 | ≥10 | ≥800 | ≥5 |
| St45 | ≥520 | ≥375 | ≥15 | ≥550 | ≥5 |
| E355 | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
| SAE1026 | ≥600 | ≥520 | ≥15 | ≥640 | ≥5 |
working method:cold drawn ,cold rolled, honed, SRB
working range:ID 20-400mm
thickness:2-50mm
ID tolerance:H8 H9 H10
Delivery Condition
1. BK(+C)
the final heat treatment after cold forming, threfore small steel pipe plasticly, the plasticly degree does not guarantee
2. 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
3. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
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. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
Products picture
Factory and equipment
process
Application
1) Fuel injection lines/nozzles for diesel or gasoline engine;
2) Compressed natured gas CNG tube
3) Drive transmission: steering column elements
4) Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel
drive shafts
5) Mechanical structure pipe parts in automobile,motorcycles and vehicle
6) Hydraulic circuits, pneumatic lines and hydraulic suspension
7) Hydraulic cylinders
Advantage of Product
1)Professional & skilled, reliable.
2)One-stop total solution
3)ready stock goods with fast delivery
4)Customizable: Non-standard sizes are also available
5)Small quantity is acceptable
6)Cash back: Refund or replacement for any product faulty
Guaranteed
If products’ quality doesn’t match the description we give or peomise before you place your order,we peomise 100%refund.
(1): High quality products with reasonable price.
(2): We are factory and trading company.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements. Free sample
(7): We have more than 4 years experience in exporting products to worldwide countries, can provide the high quality products.
(8): We have five thousand tons of stock in warehouses with abundant capital. Furthermore, we offer charge sales, credit and 7-day 24-hour services.
(9): Wide excellent experiences with after-sale service.
Why do you choose us?
Because we have large stocks and long term cooperative factories, we can get the lowest ex-factory prices.
The price is quite reasonable and it is lower than our commercial peers. Also, we can guarantee the qualities of our products.
if any concerns,Please don't hesitate to contact me I will reply you within 24 hours
We warmly welcome new and old customers to our company to negotiate business, sincerely cooperate with each other, and realize mutual prosperity and common development.
Amanda le
YanTai Xinpeng Steel Pipe CO., Ltd.
tel:0086-0535-6835398
fx:0086-0535-6835383
wechat:lhsh1981