ASTM A135 Steel Pipe
ASTM A135 steel pipe is a common piping material. It is available in two grades, Grade A and Grade B. Welds between ERW pipe and Grade B pipe should be heat-treated after welding or processed in a manner that leaves no untempered martensite. Tensile and chemical requirements for the steel are provided. ASTM A135 is ASTM’s standard for ERW steel pipe, which is used for the transportation of gases, steam, water or other liquids, and is also commonly used in fire protection applications.
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. Contact us now.
Steel Grades Of A135 Steel Pipe For Sale (Grade A&Grade B)
ASTM A135 is an important standard for resistance welded steel pipe. The standard covers two classes of pipe (Class A and Class B) for the transportation of gas, steam, water or other liquids. Gnee Steel Pipe is an experienced steel pipe manufacturer. We supply to customers worldwide at factory price. If you have any questions, please ask us!
ASTM A135 Grade B Steel Pipe
ASTM A135 Grade A Steel Pipe
Parameter information About material A135 Steel Pipe
| Steel Grades | Carbon max | Manganese | Phosphorous | Sulfur |
| ASTM A135 Gr.A | 0.25 | 0.95 | 0.035 | 0.035 |
| ASTM A135 Gr.B | 0.3 | 1.2 | 0.035 | 0.035 |
| ASTM A135 | ASTM A135 Grade A | ASTM A135 Grade B |
| Tensile Strength, | 48 | 60 |
| min, ksi [MPa] | [330] | [415] |
| Yield Strength, | 30 | 35 |
| min, ksi [MPa] | [205] | [240] |
| Elongation, | 35 | 30 |
| min, % |
Sample longitudinal bar experiment：For pipe having a specified wall thickness of less than5 ⁄16 in. (7.9 mm), if tested using a longitudinal strip test specimen
ASTM A135 gr a :The minimum elongation shall be determined by the following equation, with the calculated value rounded to the nearest percent:
E = 56t+16.5
[E = 2.2t=16.5]
where:
E = elongation in 2 in. or [50 mm], minimum, %, and
t = specified wall thickness, in. [mm].
ASTM A135 gr b: The minimum elongation shall be determined by the following equation, with the calculated value rounded to the nearest percent:
E = 48t+14
[E = 1.9t+14]
where:
E = elongation in 2 in. or [50 mm], minimum, %, and
t = specified wall thickness, in. [mm].
Dimensions and Sizes Of ASTM A135 Sprinkler Pipes
A comprehensive listing of ASTM A135 standardized pipe dimensions is contained in ASME B36.10M. ASTM A135 is a standard specification for Electric-Resistance-Welded Steel Pipe.
It covers two grades of ERW steel pipe in sizes NPS 2 to 30, with nominal (average) wall thickness up to 12.7mm, inclusive, and in nominal sizes NPS 3/4 to 5 with a nominal (average) wall thickness of 2.11mm to 3.40mm, depending on size.
This specification covers electric-resistance-welded pipes that are suitable for flanging, bending, and other similar forming operations, and for welding. The electrical resistance of the weld is calculated by dividing the arc length by the cross-sectional area.
| 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 | 1/2 | 21.3 | 0.84 | —- | —- | —- | —- | 2.77 | 0.109 | 1.27 | 0.85 |
| 20 | 3/4 | 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 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.
