Product Description
| Product Name |
Carbon steel pipe |
| Size |
OD |
21.3-1219.2mm |
| Thickness |
7.92mm-50.8mm |
| Length |
SRL,DRL,5.8M,11.8M,12M,etc |
| Material |
A53 Gr.B,A36,ST52,ST35,ST42,ST45,X42,X46,X52,X60,X65X70 |
| Standard |
API 5L,ASTM A106 Gr.B,ASTM A53 Gr.B,ASTM A179/A192,ASTM A513,ASTM A671,ASTM A672,BS EN 10217,BS EN10296,BS EN 39,BS6323,DIN
EN10217 |
| Process |
Cold drawn, Cold rolled,Hot rolled, Hot expansion |
| Usage |
High temperature service, Boiler tube, Heat exchange, oil and gas transport, etc |
| Surface |
Black paint, Varnish,3PE,FBE,Epoxy,Cement lined, varnished, black coating, Jotun paint, Galvanized |
| Marking |
Standard marking,or according to your request.Marking Method:Spray white paint |
| Package |
Seaworthy packing(bundled according to the different size), with plastic bags or plywood box |
| Inspection |
With Hydraulic Testing, Ultrasonic testing or X-ray Test |
| Certificate |
API 5L,ISO9001,SGS,BV,CCIC |
| Port of Shipment |
Shanghai port in China |
ASTM A335/A335M Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Material and Manufacture
- Process: Pipes shall be made by seamless process (hot-worked or cold-worked followed by heat treatment).
- Heat Treatment: All pipes must undergo proper heat treatment (e.g., normalization, tempering) to meet mechanical properties.
Main Grades in ASTM A335/A335M
| Grade | UNS Number | Key Alloy Composition | Common Applications |
| P1 | K11522 | 0.5Mo | Low-alloy boilers, piping |
| P2 | K11547 | 0.5Cr-0.5Mo | Power plants, refineries |
| P5 | K41545 | 5Cr-0.5Mo | High-temp/pressure service |
| P9 | S50400 | 9Cr-1Mo | Petrochemical, boilers |
| P11 | K11597 | 1.25Cr-0.5Mo-Si | Power generation, steam lines |
| P12 | K11562 | 1Cr-0.5Mo | Similar to P11, boilers |
| P21 | K31545 | 3Cr-1Mo | High-temp strength |
| P22 | K21590 | 2.25Cr-1Mo | Widely used in power plants |
| P91 | K91560 | 9Cr-1Mo-V-Nb | Advanced high-temp/pressure |
| P92 | K92460 | 9Cr-2W-0.5Mo-V-Nb | Ultra-supercritical boilers |
| P122 | K91640 | 11Cr-2W-1Cu-Mo-V-Nb | High-efficiency power plants |
Certifications
Packaging & Shipping
Company Profile
EZ Steel Industrial Co., Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.
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Our state-of-the-art production bases are equipped with world-class machinery, including automated pipe forming lines, CNC machining centers, robotic welding systems, and precision nondestructive testing (NDT) equipment such as X-ray and ultrasonic inspection. The Cangzhou facility excels in alloy steel pipe inventory management and custom fittings fabrication, while the Yangzhou base focuses on large-scale production of carbon and alloy steel pipes. The Lishui workshop specializes in premium corrosion-resistant materials, including stainless steel and copper-nickel-based alloys, meeting the stringent demands of chemical, energy, and marine industries.
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