Carbon Steel Weld Pipe ERW Black Steel Pipe Used For Liquid Delivery
The manufacturing process of the steel pipes
The ERW Black Steel Pipes are manufactured by experienced and highly skilled workers. These pipes are developed by the superior quality of raw material which is collected from the reliable market place. All the material collected is tested before use to avoid the poor quality of substances to mix in the manufacturing of the pipes. The manufacturing process is carried out under the strict supervision of the hired expert who has an excellent knowledge about the manufacturing of the pipes.
For their smooth finish and excellent workability, the pipes move through various stages in the production process. These pipes are developed as per the demand of the clients and all the guidelines are followed that are stated by the customers.
Quality assurance and material testing
The main aim is to provide the superior quality of the pipes that are provided to the well-esteemed clients. Quality of the pipes is checked at every stage of the manufacturing process. During the development of the pipes, all the well stated manufacturing norms are followed. All the national and international set of quality standards are kept in analyzing the quality of the Carbon Steel ERW Black Steel Pipes.
The quality checkers conducts different tests to check the quality of the pipes that are manufactured to avoid last stage delays in delivery of the product. Conduction of tests ensures the clients about the safely manufacturing of the product that they are provided with. The various tests that they conduct are hardness test, hydrostatic test, ultrasonic test, intergranular corrosion test, positive material test, and flattening test.
ERW: Electric Resistance Welded Steel Pipe
HFI: High Frequency Induction Weld Pipe
EFW: Electric Fusion Welded Pie
Standard: API5L, API5CT, ASTM 53, EN10217, DIN 2458.is3598, JIS G3452, BS1387
Out Diameter: 114.3mm-610mm (4"-24")
Wall Thickness: 3.5mm-22mm
Length: 3mtr-18mtr
Steel Grade: Q195, Q235A-B, Q345A-E, 16Mn, ASTM A36,ASTM A500, ASTM A53, ASTM A572, ASTM 106, SS400, St37, St52, S235JR, S355JRH ect.
Certificate: API 5L PSL1/PSL2, API5CT
Surface: galvanized, painted, oiled, powder coated, 3LPE, PVC coated or as clients' requirement
Ends Treatment: plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp, or as customers' requirement.
Application: liquid delivery (pump well, water), casing pipe, construction pipe, structural pipe(greenhouse structure, fence post), curtain wall, machinery part ect.
Chemical component %
| Standard | Grade | C | Si | Mn | P | S | Cr |
| GB/T 700 | Q235 | 0.2 | 0.35 | 0.5 | 0.035 | 0.04 | |
| GB/T 1591 | Q345 A-E | 0.18-0.2 | 0.5 | 1.7 | 0.025-0.035 | 0.02-0.035 | 0.3 |
| AS/NZS 1163:2009 | C250, C250L0 | 0.12 | 0.05 | 0.5 | 0.03 | 0.03 | 0.15 |
| C350, C350L0 | 0.2 | 0.45 | 1.6 | 0.03 | 0.03 | 0.3 |
| C450, C450Lo | 0.2 | 0.45 | 1.7 | 0.03 | 0.03 | 0.5 |
Mechanical Property
| Standard | Grade | Yield Strength σs MPa | Tensile Strength σb MPa | Elongation δ5 % |
| GB/T 700 | Q235 B | 235 | 370-500 | 21-26 |
| GB/T 1591 | Q345 A-E | 345 | 450-630 | 17-21 |
| AS/NZS 1163:2009 | C250, C250L0 | 250 | 320 | 14-22 |
| C350, C350L0 | 350 | 430 | 12-10 |
| C450, C450Lo | 450 | 500 | 10-16 |
Our Advantage:
Huayang specialized in manufacturing welded carbon steel pipes for 14 years. The annual output is around 1,000,000 tons. Our products have been exported to 40 countries and regions till now, such as Canada, Hong Kong, Vietnam, Bangladesh, The U.A.E, America, Spain, Italy, Netherlands, Kuwait, Saudi Arabia etc. So any inquiry or special demands will get fast and most professional reply.
Why choose us?
1. We are API/ISO Certificated manufacturer.
2. Have cooperated with a lot of importers for more than 8 years.
3. Experienced in doing business with big customers.
4. Quick delivery time for decent orders.Near to Tianjin port.
5. Factory audited by SGS.
6. Free samples could be provided.
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