We are professional manufacturer of steel pipe, which have been approved by API and ISO system.
Our products introduction:
Heat Exchanger tube
(Standard: ASTM A179);
Oil line pipe(Standard: API 5L X42/46/52 etc),
Precision seamless steel tube for Mechanical and Automobile
(Standard: ASTM 519/A513/822, DIN2391ST35/45/52, EN10305-1E215/235/355);
Boiler tube, Pressure tube
(Standard: ASTM A178 Gr. A/C/D, ASTM A192, ASTM A210 Gr. A/C; BS3059; EN10216-1/2; DIN17175 ST35.8/45.8, DIN1629 ST37.0/44.0/52.0);
Alloy tube
(Standard: ASTM A213 T11/12/22/5/9, ASTM A335 P11/22/12/5/9, ASTM A199 T11/22/5, ASTM A209 T1/1A/1b; EN10216-2);
Fluid Transportation Service
(Standard: ASTM A106 Gr. A/B/C, ASTM A53 Gr. A/B);
Company Operation principle: Integrity, Quality, Service.
Quality Control:
Our quality control department consists of experienced technicians. These personnel strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers.
| Chemical composition |
| Product |
Ttem |
Grade |
Chemical composition |
| C |
Si |
Mn |
P.≤ |
S.≤ |
Cr |
Ni |
others |
| Carbon steel |
1 |
10 |
0.07/0.13 |
0.17/0.37 |
0.35/0.65 |
0.03 |
0.03 |
≤0.15 |
≤0.30 |
Cu≤0.25 |
| 2 |
20 |
0.17/0.23 |
0.17/0.37 |
0.35/0.65 |
0.03 |
0.03 |
≤0.25 |
≤0.30 |
Cu≤0.25 |
| 3 |
A179 |
0.06/0.18 |
- |
0.27/0.63 |
0.03 |
0.03 |
- |
- |
- |
| Mechanical properties |
| Item |
Mark |
Tensile property |
| Extension strength Rm Mpa |
Lower Yield strength Rel or Rp0.2 MPa |
lower Yield strength ReL or Rp0.2 Mpa |
| Thickness |
| ≤16 |
>16 |
| ≥ |
| 1 |
10 |
335~475 |
205 |
195 |
24 |
| 2 |
20 |
410~530 |
245 |
235 |
20 |
| 3 |
A179 |
≥325 |
180 |
35 |
