1. Manufacturer
2. Good quality
3. Best service
4. ISO9001-2000
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We are specialized in producing both standard and non-standard steel hollow box, including square steel pipe with size from 15*15mm to 600*600mm and rectangular steel pipes with size from 10*15mm to 550*600mm, which can be black steel pipe or galvanized steel pipes. We also do business in High Frequency Longitude Welding pipes(ERW) with outer diameter from 1/2" to 14", SSAW with outer diameter from 219mm to 2020mm, seamless steel pipes and steel strips, on which we have stable and fixed cooperators for more than 10 years.
All the products supplied by us should be produced strictly according to the standards, such as ASTM A53, GB/T9711, API 5L, GB/3091, ASTM A500 and some other domestic and international standards to satisfy your various requirements, which is widely applied to the industries of construction, steel structure, natural gas, shipbuilding, chemical, boiler and other relative fields, with the capacity of 300, 000MT yearly.
Application:
Widely used in mechanical manufacturing, construction industry, metallurgy industry, agricultural vehicles, agricultural awning, the auto industry, railway, and road guardrail, container skeleton, furniture, decoration and steel structure, etc
About us:
We are specialized in producing both standard and non-standard steel hollow box, including square steel pipe with size from 15*15mm to 600*600mm and rectangular steel pipes with size from 10*15mm to 400*600mm, which can be black steel pipe or galvanized steel pipes. We also do business on H/I/U beam and steel angles for years.
Hebei Shengtian Group Co., Ltd taking the farseeing idea, scientific management, advanced equipment and technique, and good reputation as the fundamental, we strictly carry out quality management system according to ISO9001 international standard to guarantee the best products and services to you.
| Chemical components | Mechanical property | ||||||||||||
| C | Si | Mn | P,S | Cu | Ni | Mo | Cr | V | Tensile Strength | Yield Strength | Elongation | ||
ASTM A53 | A | ≤0.25 | / | ≤0.92 | ≤0.05 | ≤0.06 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 | ≥330 | ≥205 | ≥29.5 |
| B | ≤0.30 | / | ≤1.2 | ≤0.05 | ≤0.06 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 | ≥415 | ≥240 | ≥29.5 | |
A106: Chemical components and mechanical property
| Stan-dard | Trade mark | Chemical components | Mechanical property | ||||||||||
| C | Si | Mn | P,S | Cu | Ni | Mo | Cr | V | Tensile Strength | Yield Strength | Elongation | ||
ASTM A106 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 | ≥415 | ≥240 | ≥30 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 | ≥485 | ≥275 | ≥30 | |
PSL 1: Chemical components and mechanical property
| Class and Sort | Chemical components | Mechanical property | |||||||
| C(Max) | Mn(Max) | P(Max) | S(Max) | Tensile Strength(Min) | Yield Strength(Min) | ||||
| A25 | CL I | 0.21 | 0.60 | 0.030 | 0.030 | 45.000 | 310 | 25.000 | 172 |
| CL II | 0.21 | 0.60 | 0.030 | 0.030 | |||||
| A | 0.22 | 0.90 | 0.030 | 0.030 | 48.000 | 331 | 30.000 | 207 | |
| B | 0.28 | 1.20 | 0.030 | 0.030 | 60.000 | 414 | 35.000 | 241 | |
| X42 | 0.28 | 1.30 | 0.030 | 0.030 | 60.000 | 414 | 42.000 | 290 | |
| X46 | 0.28 | 1.40 | 0.030 | 0.030 | 63.000 | 434 | 46.000 | 317 | |
| X52 | 0.28 | 1.40 | 0.030 | 0.030 | 66.000 | 455 | 52.000 | 359 | |
| X56 | 0.28 | 1.40 | 0.030 | 0.030 | 71.000 | 490 | 56.000 | 386 | |
| X60 | 0.28 | 1.40 | 0.030 | 0.030 | 75.000 | 517 | 60.000 | 414 | |
| X65 | 0.28 | 1.40 | 0.030 | 0.030 | 77.000 | 531 | 65.000 | 448 | |
| X70 | 0.28 | 1.40 | 0.030 | 0.030 | 82.000 | 565 | 70.000 | 483 | |
Our catalog of Seamless steel pipe
| item | material | standard | specification (OD*WT)mm | usage |
| alloy pipe | Cr5Mo. 15CrMo 13CrMo44 12Cr1MoV P22 T91,P91,P9, T9 Wb36 | GB5310-95 GB9948-88 ASTMA335/A335M ASTMA213/213M DIN17175-79 JISG3467-88 JISG3458-88 | 16-824*2-100 | The seamless steal pipes features resistance to high pressure, high/low temperature and corrosion and is used in the industries of petroleum, chemical engineering and. Electric power as well as boiler |
| High-pressure boiler pipe | 20G ,A106, ST 45 | GB5310-95 ASTM A 106-99 DIN17175-79 | 14-630*2-80 | Temperature-resistant seamless steel pipe far high-pressure boiler |
Seamless pipes for petroleum | 20, 12CrMo, 15CrMo | GB9948-88 | 10-530*1.5-36 | Boiler pipes for refinery, heat-exchanging pipes, seamless steel pipes for pipeline |
| High-pressure Seamless pipes for fertilizer making equipment | 20, 16Mn, Q345 | GB6479-2000 | 18-530*3-40 | Fertilizer making equipment and pipe line |
Low and medium- pressure boiled pipe | 10,20 | GB3087-1999 | 10-530*2-40 | Over-heat pipe for low and medium pressure boiler, boiling water pipe, locomotive smoke pipe(big and small) |
| Fluid pipe | 20, Q345 | GB/T8163-1999 | 8-630*1.0-40 | Fluid feeding |
| Structural pipe | 20, Q345 10, 20,35,45, 16Mn,Q345B | GB/T8162-1999 | 6-1020*1.5-100 | For common structure |
| Line pipe | Gr.B | API | 60-630*1.5-40 | Carrying gas, water or oil in the industries of petroleum and natural gas |
Hydraulic prop pipe | 27SiMn | GB/T17396-1998 | 70-377*9-40 | Hydraulic support and prop |
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