Zhong Neng Steel Union(Qingdao)Heavy Industry Co.,Ltd
| Model NO. | API 5CT J55/K55 |
| Section Shape | Round |
| Transport Package | 20FT/40FT/Bulk |
| Specification | 1-10000tons |
| Trademark | zhongneng ganglian steel |
| Origin | China |
| HS Code | 7610900000 |
| Supply Ability | 80000 |
| Warranty | Quality Reliable/Available |
| Type | Seamless |
| Technique | Hot Rolled |
| Material | Carbon Steel |
| Surface Treatment | Black |
| Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Samples | US$ 100/Piece 1 Piece(Min.Order) | Request Sample |
| Customization | Available | Customized Request |
| Place of Origin | China |
| Brand Name | ZNGL |
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Product Specification
| Model NO. | API 5CT J55/K55 | Section Shape | Round |
| Transport Package | 20FT/40FT/Bulk | Specification | 1-10000tons |
| Trademark | zhongneng ganglian steel | Origin | China |
| HS Code | 7610900000 | Supply Ability | 80000 |
| Warranty | Quality Reliable/Available | Type | Seamless |
| Technique | Hot Rolled | Material | Carbon Steel |
| Surface Treatment | Black | Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Samples | US$ 100/Piece 1 Piece(Min.Order) | Request Sample | Customization | Available | Customized Request |
| Place of Origin | China | Brand Name | ZNGL |
Chemical compositions of casing pipe
| Standard | Grade | Chemical compositions(%) | |||||||||
| API SPEC 5CT | J55 | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V |
| K55 | 0.34~0.39 | 0.20~0.35 | 1.25~1.50 | ≤0.020 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | / | / | |
| N80 | 0.34~0.38 | 0.20~0.35 | 1.45~1.70 | ≤0.020 | ≤0.015 | ≤0.15 | / | / | / | 0.11~0.16 | |
| Q125 | ≤0.35 | ------------- | ≤1.35 | ≤0.020 | ≤0.010 | ≤1.50 | ≤0.20 | ≤0.20 | / | / | |
| P110 | 0.26~0.395 | 0.17~0.37 | 0.40~0.70 | ≤0.020 | ≤0.010 | 0.80~1.10 | ≤0.20 | ≤0.20 | 0.15~0.25 | ≤0.08 | |
| Grade | Type | Total elongation under load (%) | Yield strength (min)Mpa | Yield strength (max)Mpa | Tensile strength min Mpa | Hardness Max (HRC) | Hardness Max (HBW) |
| J55 | - | 0.5 | 379 | 552 | 517 | - | - |
| K55 | - | 0.5 | 379 | 552 | 655 | - | - |
| N80 | 1 | 0.5 | 552 | 758 | 689 | - | - |
| N80 | Q | 0.5 | 552 | 758 | 689 | - | - |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| C90 | - | 0.5 | 621 | 724 | 689 | 25.4 | 255 |
| C95 | - | 0.5 | 655 | 758 | 724 | - | - |
| T95 | - | 0.5 | 655 | 758 | 724 | 25.4 | 255 |
| P110 | - | 0.6 | 758 | 965 | 862 | - | - |
| Q125 | All | 0.65 | 862 | 1034 | 931 | - | - |
Casing Pipe Manufacturing Process:
Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening → pipe cutting → inspection
1. An annular heating furnace is required for ingot heating;
2. Punching and reheating with hydraulic press;
3. The oil casing plant uses a two-roller guide plate extension machine for extension;
4. Re-use a disc heating furnace for periodic rolling, and use a non-entry furnace for reheating, cooling, straightening, pipe cutting, and inspection.
1.Packing :3 layers of packaging, kraft paper inside, water plastic film in the middle, the outermost GI steel plate tied with steel belt or as required.
Company Details
Business Type:
Manufacturer,Trading Company,Other
Year Established:
2006
Total Annual:
8000000-20000000
Employee Number:
60~120
Ecer Certification：
Verified Supplier
ZHONG NENG Steel Union (Qingdao) Heavy Industry Co., Ltd. was established in 2006, has more than 15 years of production experience. The company is committed to providing customers with professional steel processing, production and transportation, with advanced equipment and technology to meet custom... ZHONG NENG Steel Union (Qingdao) Heavy Industry Co., Ltd. was established in 2006, has more than 15 years of production experience. The company is committed to providing customers with professional steel processing, production and transportation, with advanced equipment and technology to meet custom...
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