Jizhong supplies a complete range of A/SA53-B seamless and welded a53 steel pipe, widely used in global B2B markets for industrial pipeline projects.
Available Dimensions
- Sizes: 1/8” NPS to 26” OD
- Schedules: S/10, S/20, S/40, STD, S/60, S/80, XH, S/100, S/120, S/140, S/160, XXH
Scope of ASTM A53 / ASME SA53
The a53 steel pipe standard is designed for mechanical and pressure service, while also being suitable for general applications such as steam, water, gas, and air pipelines. It can be welded, coiled, bent, or flanged depending on project requirements.
This specification covers both Seamless and Welded pipes, available in black or hot-dipped galvanized finish. These pipes are ideal for forming processes like coiling and bending. Note that continuous-welded pipe is not recommended for flanging applications. Buyers should clearly indicate the intended service when placing orders to ensure the correct product is supplied.
Materials and Manufacturing Process
The steel used for a53 steel pipe production can be manufactured through one or more processes: open-hearth, electric furnace, or basic-oxygen methods. For Grade B ERW pipes, the weld seam must undergo heat treatment after welding to ensure consistent mechanical performance.
Chemical Requirements
Type S (seamless) | Type E | Type F | |||
(electric- resistance welded) | (furnace- welded pipe) | ||||
Grade A | Grade B | Grade A | Grade B | Grade A | |
Carbon max. % | 0.25 | 0.30* | 0.25 | 0.30* | 0.3 |
Manganese % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 |
Phosphorous, max. % | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
Sulfur, max. % | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
Copper, max.% | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
Nickel, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
Chromium, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
Molybdenum, max. % | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
Vanadium, max. % | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
Permissible Variations in Wall Thickness
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
Permissible Variations in Weights per Foot
Plus or minus 10%
Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than:
| For NPS 1 1/2 and Smaller Sizes | For NPS 2 and Larger Sizes | ||
|---|---|---|---|
| 1/64″ over | 1/64″ under | 1% over | 1% under |
Download the full product catalog.
Tensile Requirements
Seamless and Electric-resistance-welded | Continuous-Welded | ||
Grade A | Grade B | ||
Tensile Strength, min., psi | 48,000 | 60,000 | 45,000 |
Yield Strength, min., psi | 30,000 | 35,000 | 25,000 |
Why Choose Jizhong
With extensive B2B supply experience, Jizhong ensures strict compliance with ASTM and ASME standards, providing durable a53 steel pipe products for industries including oil & gas, construction, water transmission, and power generation. Customized post-production services such as cutting, threading, and coating are also available to meet diverse project needs. Contact Us Now!
