ASTM A135 Grade B Steel Pipe
Steel Grade ASTM A135 B is used for resistance-welded (ERW) steel pipe. The chemical and mechanical properties of ASTM A135 B pipe make it suitable for high-pressure applications, including the transportation of gases, steam, water, and other fluids. In some countries, ASTM A135 Class B piping is also used as fire sprinkler piping. According to the standard, only Class B pipe is not suitable for flanging and bending.
Gnee A135 steel pipes are manufactured to stringent quality standards. We support global direct sales. You can buy directly from Gnee factory with reliable quality and affordable price.
Parameter information About material A135 Grade B Steel Pipe
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade B | 0.3 | 1.2 | 0.035 | 0.035 |
| ITEM | Grade B |
| Tensile strength, min, ksi (MPa) | 60 (414) |
| Yield strength, min, ksi (MPa) | 35 (241) |
| Elongation in 2 in. (50 mm), min, % | |
| For pipe having a specified wall thickness of 5 ⁄16in. (7.9 mm) or more, if tested using a longitudinal strip test specimen | 30 |
| For pipe having a specified wall thickness of less than 5 ⁄16 in. (7.9 mm), if tested using a longitudinal strip test specimen | B |
| For pipe of any size, if tested using a full-size longitudinal test specimen | 30 |
Specifications Of ASTM A135 Grade B
Class A135 B covers ERW steel pipe sizes NPS 2 through 30 with nominal (average) wall thicknesses up to and including 12.7 mm and ERW steel pipe sizes NPS 3/4 through 5 with nominal (average) wall thicknesses ranging from 2.11 mm to 3.40 mm, depending on size. This standard contains a comprehensive list of ASTM A135 standard pipe sizes contained in ASME B36.10M.
| N.D. | O.D. | SCH 10 | SCH 30/40 | ||||||||
| WALL THICKNESS | NOMINAL WEIGHT | WALL THICKNESS | NOMINAL WEIGHT | ||||||||
| (mm) | (inch) | (mm) | (inch) | (mm) | (inch) | (kg/mtrs) | (lbs/ft) | (mm) | (inch) | (kg/mtrs) | (lbs/ft) |
| 15 | 1月2日 | 21.3 | 0.84 | —- | —- | —- | —- | 2.77 | 0.109 | 1.27 | 0.85 |
| 20 | 3月4日 | 26.7 | 1.05 | 2.11 | 0.083 | 1.28 | 0.96 | 2.87 | 0.113 | 1.69 | 1.13 |
| 25 | 1 | 33.4 | 1.32 | 2.77 | 0.109 | 2.09 | 1.41 | 3.38 | 0.133 | 2.5 | 1.68 |
| 32 | 2001/1/4 | 42.2 | 1.66 | 2.77 | 0.109 | 2.69 | 1.81 | 3.56 | 0.14 | 3.39 | 2.27 |
| 40 | 2001/1/2 | 48.3 | 1.9 | 2.77 | 0.109 | 3.11 | 2.09 | 3.68 | 0.145 | 4.05 | 2.72 |
| 50 | 2 | 60.3 | 2.38 | 2.77 | 0.109 | 3.93 | 2.64 | 3.91 | 0.154 | 5.45 | 3.66 |
| 65 | 2002/1/2 | 73 | 2.88 | 3.05 | 0.12 | 5.26 | 3.53 | 5.16 | 0.203 | 8.64 | 5.8 |
| 80 | 3 | 88.9 | 3.5 | 3.05 | 0.12 | 6.46 | 4.34 | 5.49 | 0.216 | 11.29 | 7.58 |
| 90 | 2003/1/2 | 101.6 | 4 | 3.05 | 0.12 | 7.41 | 4.98 | 5.74 | 0.226 | 13.58 | 9.12 |
| 100 | 4 | 114.3 | 4.5 | 3.05 | 0.12 | 8.37 | 5.62 | 6.02 | 0.237 | 16.09 | 10.8 |
| 125 | 5 | 141.3 | 5.56 | 3.4 | 0.134 | 11.58 | 7.78 | 6.55 | 0.258 | 21.79 | 14.63 |
| 150 | 6 | 168.3 | 6.63 | 3.4 | 0.134 | 13.85 | 9.3 | 7.11 | 0.28 | 28.29 | 18.99 |
| 200 | 8 | 219.1 | 8.63 | 4.78 | 0.188 | 25.26 | 16.96 | 7.04 | 0.277 | 36.82 | 24.72 |
| 250 | 10 | 273.1 | 10.75 | 4.78 | 0.188 | 31.62 | 21.23 | 7.08 | 0.307 | 51.05 | 34.27 |
Why Choose Gnee As A135 Grade B Steel Pipe Distributor?
In addition, our tubes have been successfully exported to more than 60 countries such as Vietnam, Malaysia, Indonesia, Pakistan, UAE, and South Korea, etc. Many regular customers visit our company and factory and make multiple orders.
What Services Does Gnee Provide?
Gnee can provide the following measurement services for pipe:
1. Dimensional measurement: Measure the dimensional parameters such as length, width, and thickness by measuring instruments to ensure the pipe is qualified and meets the design requirements.
2. Surface measurement: Measure parameters such as flatness, unevenness, and surface roughness of pipe surface to help ensure that the quality and surface state of the pipe meet the requirements.
3. Thickness measurement: Use a thickness measuring instrument to accurately measure the thickness of the pipe to ensure that it meets the design requirements.
4. Material measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the product to ensure that the quality and performance meet the requirements.
5. Bending and Deformation Measurements: The degree of bending and deformation of the steel pipe is measured and monitored by using tools such as bending measuring instruments and displacement sensors to ensure that it is within the allowable range.
Gnee can customize the size and shape of steel pipes for your project according to specific project needs. The custom design of the pipe is carried out by a professional engineer and design team. Based on the requirements and constraints of the project, they will use calculation and simulation tools, combined with experience and technical knowledge, to optimize the steel pipe design to meet the specific needs of your engineering.
● According to the strength requirements of structural design, adjust the thickness, width, and length of pipes.
● The shape of the steel pipe can be designed according to the characteristics of the project.
● If you consider the convenience of installation and maintenance, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.
Purchasing Gnee steel pipe can provide the following deep processing services. We can customize according to the specific needs of customers to meet the requirements.
Cutting service: Pipe can be custom cut to obtain the desired shape and size according to the needs of customers. For example, flame cutting, plasma cutting, laser cutting, etc., can cut steel pipes into required blocks, special-shaped parts.
Bending and forming: Pipes are bent and formed by stress application and appropriate processes to obtain the desired shape.
Welding service: Pipe can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Turning and machining of holes: Turning and machining of holes in pipes by using machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface treatment: In order to improve the corrosion resistance and aesthetics of the steel pipe, surface treatment can be carried out. This includes methods such as spraying, hot-dip galvanizing, electroplating, etc. to add a protective layer and provide corrosion resistance.
Gnee can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that pipes comply with relevant standards and regulations.
Material chemical composition analysis: Through chemical composition analysis, determine whether the composition of the steel pipe meets the standard requirements.
Mechanical performance test: Mechanical performance test includes tensile test, impact test, bending test, etc., which are used to determine whether the mechanical properties such as strength, toughness and ductility of products meet the specified requirements.
Metallographic testing: Through metallographic testing, check the structure, grain size, non-metallic inclusions, etc. of pipes to evaluate their quality and performance.
Corrosion performance test: Through the corrosion performance test, evaluate the corrosion resistance of pipes, including salt spray corrosion resistance, chemical corrosion resistance, etc.
Hardness test: Hardness test is used to measure the hardness of pipe, and its strength and wear resistance can be evaluated according to the hardness value.
Ultrasonic flaw detection: Ultrasonic flaw detection is used to detect internal defects of pipes, such as cracks, pores, inclusions, etc.
