ASTM A135 GR.B ERW Steel Pipe Black For Plumbing Structural Applications
ASTM A135 GR.B Welded Steel Pipe Black Pipe For Low Pressure Plumbing Systems
Specifications
The steel grade ASTM A135 Grade B is utilized for Electric-Resistance-Welded (ERW) steel pipes for conveying gas, vapor, water or other liquid, it is also commonly used in fire-fighting applications. The chemical and mechanical qualities of ASTM A135 Grade B pipes make them appropriate for high-pressure applications, including the transport of gas, vapor, water, and other fluids. In certain nations, ASTM A135 Grade B pipes are also utilized as fire sprinkler pipes.
| American Standard | Standard Name |
| A135/A135M | Standard Specification for Electric-Resistance-Welded Steel Pipe |
ASTM A135 GR.B Welded Steel Pipe Chemical Composition
Sources American Standard A135/A135M TABLE 2 Chemical Requirements
| Element | Composition, max, % | |
| Grade A | Grade B | |
| Carbon | 0.25 | 0.3 |
| Manganese | 0.95 | 1.2 |
| Phosphorus | 0.035 | 0.035 |
| Sulfur | 0.035 | 0.035 |
ASTM A135 GR.B Welded Steel Pipe Mechanical Properties
Sources American Standard A135/A135M TABLE 1 Tensile Requirements
| Tensile Requirements | Grade A | Grade B |
| Tensile Strength, min, ksi [MPa] | 48[330] | 60[415] |
| Yield Strength,min, ksi [MPa] | 30[205] | 35[240] |
| Elongation, min, % | 35 | 30 |
ASTM A135 GR.B Electric-Resistance Welded (ERW) Steel Pipe Manufacturing Process
High-frequency straight seam electric-resistance welded steel pipe(erw steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production.
High-frequency resistance welding steel pipe, welding pipe and ordinary welding process is not the same, the weld is made of the base metal melt from the body, the mechanical strength is better than the general pipe. Smooth appearance, high precision, low cost weld high and small, favorable 3PE anti-corrosion coating. There are significant differences in the welding methods between high frequency welded pipe and submerged arc welded pipe. As the welding is done instantly at high speed, the difficulty of ensuring the quality of welding is much higher than that of submerged arc welding.
ASTM A135 GR.B Welded Steel Pipe Application
- Plumbing and Structural Applications
- Low-Pressure Plumbing Systems
- Industrial and Process Piping
- Oil and Gas Pipelines
- General Mechanical Applications
ASTM A135 GR.B Welded Steel Pipe Packing & Loading
- 1/2"-2" Plain end with black oil paint, caps both ends, bundles with loading belt.
- 2"-4" Beveled end with black oil paint, caps both ends, bundles with loading belt.
- 10"-20" Beveled end with black oil paint, caps both ends, loose packed into container.
ASTM A135 GR.B Welded Steel Pipe Shipment Reference
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.