Fast Delivery China Top Factory 4130 4140 Q+T cold drawn steel pipe
Grade:20# 45# Q345B Q345D 25Mn 27SiMn E355 SAE1026
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 |
OD tolerance
ID tolerance:
ID size | ID deviation (mm) | |||
H7 | H8 | H9 | H10 | |
30 | +0.021 0 | +0.033 0 | +0.052 0 | +0.084 0 |
>30~50 | +0.025 0 | +0.039 0 | +0.062 0 | +0.100 0 |
>50~80 | +0.030 0 | +0.046 0 | +0.074 0 | +0.120 0 |
>80~120 | +0.035 0 | +0.054 0 | +0.087 0 | +0.140 0 |
>120~180 | +0.040 0
| +0.063 0 | +0.100 0 | +0.160 0 |
>180~250 | +0.046 0 | +0.072 0 | +0.115 0 | +0.185 0 |
>250~315 | +0.052 0 | +0.081 0 | +0.130 0 | +0.210 0 |
>315~400 | +0.0527 0 | +0.089 0 | +0.140 0 | +0.230 0 |
mechanical property
Delivery condition | BKS Cold Drawn & Stress-Relieved | ||
Steel Grade | Rm MPa | ReH MPa | Elongation A5(%) |
ST45 | ≥520 | ≥375 | ≥15 |
ST52(E355) | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥600 | ≥510 | ≥15 |
45# | ≥600 | ≥520 | ≥10 |
20# | ≥520 | ≥375 | ≥15 |
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.
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
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
All our products can be produced according to your requirement strictly and guarantee the quality.
Our advantages as below:
1. Stable stock with competitive price and good quality
2. Special size is available.
3. Indoor warehouse can prevent rust
Guaranteed
If products’ quality doesn’t match the description we give or peomise before you place your order,we peomise 100%refund.
Tel +86-535-6835398
Website: