| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Seamless Ferritic and Austentic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes | ASTM A213 | Ø10.3~426 x WT1.0~36 | T5, T9, T11, T12, T22, T91 |
| Seamless Ferritic Alloy Steel Pipes for High Temperature Use | ASTM A335 | Ø1/4"~42" x WT2~120mm | P5, P9, P11, P12, P22, P91, P92 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A519 | Ø16"~42" x WT10~100mm | 4130, 4130X, 4140 |
| Product Name | Executive Standard | Dimension (mm) | Steel Code / Steel Grade |
| Seamless Ferritic Alloy Steel Pipes for High Temperature Use | EN10216-2 | Ø8"~42" x WT15~100 | 13CrMo4-5, 1-CrMo9-10, X10CrMoVNb9-1, 15NiCuMoNb5-6-4 |
| Descriptions | Grades | Standard | Specification (OD*WT)mm |
Usage |
| Structural steel pipe | 20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2, SAE1018, SAE1020, SAE1518, SAE1045. | GB/T8162-2008 | 6-1020*1.5-100 | For commom structure |
| Fluid steel pipe | 10#, 20#, ASTM A106, A210, A53, 16Mn, Q345A.B.C.D.E, Q295B.C.D.E | GB/T8163-2008 | 8-630*1.0-40 | Fluid feeding |
| High pressure boiler pipe | 20G, 15MnG, 20MnG, 15CrMoG, 12Cr1MoVG, St35.8, St45, SA106b, SA106c, SA210a, SA210c, A335P2, P11, P12, P22, P91, P92, A213 T2,T9, T11, T12, T22, T23, T91 | GB/5310-2008, ASTM A 106-99, DIN 17175-79 |
14-630*2-80 | Temperature-resistant seamless steel pipe far high-pressure boiler |
| Oil casing pipe | API SPEC 5CT J55, K55, N80, L80, C90, C95, P110 | API SPEC 5CT, SY/T6194-96, GB/T222-84, | 10-530*1.5-36 | Boiler pipes for refinery,heatexchangeing pipes,seamless steel pipes for pipeline |
| Pipeline | API SPEC 5L, X42, X52, X60, X65,X70,X80 ASTM A53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245 |
API SPEC 5L, ISO 3183, GB/T 9711 | 60-630*1.5-40 | Carrying gas,water or oil in the industries of petroleum and natural gas |
| Alloy steel pipe | 4140, 42CrMo, 32CrMo, 15CrMo, Cr5Mo, 13CrMo44, 12Cr1MoV P22 T91,P91,P9, T9, Wb36 | GB5310-95, GB9948-88, ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JISG3467-88, JISG3458-88 |
16-824*2-100 | The seamless steel pipes features resistance to high presure,high/low temperature and corrosion ano is used in the industries of petroleum, chemical engineering and. Electric pwer as well as boiler |
| Hydraulic prop pipe | 20#, 45#, 27SiMn, 30CrMoSiA | GB/T17396-2009 | 70-377*9-40 | Coal mine hydraulic support and pillar cylinder, column, can also be used for other hydraulic cylinder, column |
| Grade | Chemical composition (%) | |||||
| C | Mn | Si | P | S | Al | |
| Q235A | 0.14~0.22 | 0.30~0.65 | ≤0.30 | ≤0.045 | ≤0.050 | |
| Q235B | 0.12~0.20 | 0.30~0.67 | ≤0.30 | ≤0.045 | ≤0.045 | |
| Q235C | ≤0.18 | 0.35~0.80 | ≤0.30 | ≤0.040 | ≤0.040 | |
| Q235D | ≤0.17 | 0.35~0.80 | ≤0.35 | ≤0.035 | ≤0.040 | |
| Q345A | ≤0.20 | ≤1.70 | ≤0.50 | ≤0.035 | ≤0.035 | |
| Q345B | ≤0.20 | ≤1.70 | ≤0.50 | ≤0.035 | ≤0.035 | |
| Q345C | ≤0.20 | ≤1.70 | ≤0.50 | ≤0.030 | ≤0.030 | ≥0.015 |
| Q345D | ≤0.18 | ≤1.70 | ≤0.50 | ≤0.030 | ≤0.025 | ≥0.015 |
| Q345E | ≤0.18 | ≤1.70 | ≤0.50 | ≤0.025 | ≤0.020 | ≥0.015 |
| Steel material | Tensile Strength Mpa | Yield strength Mpa | Elongation % | Hardness | Straightness |
| 1020 | ≥510 | ≥245 | ≥25 | ≤156HB | 0.3~1.0 |
| 1045 | ≥647 | ≥355 | ≥16 | ≤HRC62 | 0.3~1.0 |
| 1010 | ≥410 | ≥245 | ≥25 | ≤156HB | 0.3~1.0 |
| 1035 | ≥530 | ≥315 | ≥20 | ≤156HB | 0.3~1.0 |
Hebei shengtian pipe-fitting group Co., ltd. is located in Mengcun County, Cangzhou City, Hebei PR, China.
Established in 1989, covers a land area of 100,000㎡,with registered capital up to USD 28 million. It has over 380 employees, including over 90 professionals and technicians. The main products are seamless steel pipe, erw steel pipe, lsaw steel pipe, ssaw steel pipe etc. Especially Custom prefabricated piping is our specialty products. It can carry out production according to the standards such as GB, HG, SH, ANSI, ASME, API 5L, OCTG, DIN and JIS etc., and its products are exported to over most countries and regions in Southeast Asia, the Middle East, Europe and America etc., enjoying a very good reputation in the domestic and foreign markets. The company has nondestructive testing apparatus, supersonic testing apparatus, universal testing machine, impact tester and physical & chemical labs, forming a complete quality assurance system.
The company has established a scientific quality assurance system and obtained the certificates such as “API 5L", "BV", "CE", “the ISO 9001-2000 QUALITY SYSTEM CERTIFICATION”, “ISO14001 ENVIRONMENT MANAGEMENT SYSTEM/OHSAS18001 SAFETY MANAGEMENT SYSTEM CERTIFICATION”, “the special manufacturing processes are an effective guarantee for product quality.
We always adhere to honesty and service-oriented purpose, to serve each of our customers. We sincerely welcome customers at home and abroad to visit us and seeking common development.
EN10216-2 Alloy Round Seamless Steel pipe is about 20% higher than a welded pipe. So in applications that have a higher working pressure as a prerequisite, the use of a seamless pipe is justified. Though stronger than a welded pipe, the cost is much higher. Furthermore, the risk of intergranular corrosion at the heat affected weld zone is more in a welded product. The visible difference between an Alloy Steel Welded Pipe and a seamless product is the latitudinal seam along the length of the pipe. However, today, with the advancement in technology, the seam present on the Alloy Steel ERW Pipe could considerably be reduced via means of a surface treatment, such that it remains invisible to human eyes..
