ASTM A53 Grade B ERW Pipe Manufacturer

ASTM A53 Grade B ERW Pipe is a high-quality carbon steel pipe used for conveying fluids, gases, and structural applications. It is produced through an Electric Resistance Welding (ERW) process, ensuring uniform thickness, smooth finishes, and strong weld integrity. Midland Alloys is a leading supplier of ASTM A53 Grade B ERW Pipes. We offer ASTM A53 ERW pipe sizes ranging from 1/2″ NB to 36″ NB, as well as thicknesses ranging from 3 mm to 12 mm in seamless, ERW, welded, and fabricated forms. Our pipes are manufactured to ASTM A53 and ASME SA53 standards and undergo thorough quality control to ensure dimensional accuracy and durability. With decades of experience and a global supply network, we offer high-quality pipe to industries all over the world, meeting both standard and custom requirements quickly and reliably.

Benefits of Carbon Steel ASTM A53 Grade B Welded Pipe

Carbon Steel ASTM A53 Grade B Welded Pipe offers strong performance for multiple applications. It delivers reliability in harsh working conditions while keeping costs in check.

High strength and durability for demanding operations, even under heavy loads.
Cost-effectiveness that lowers project budgets without reducing quality.
Excellent weldability, allowing easy modifications and fabrication on-site.
Strong corrosion resistance, especially when coated or galvanized.
High pressure resistance for safe operation in pipelines and pressurized systems.
Uniform wall thickness for smooth flow and minimal pressure drop.

Difference – ASTM A53 Grade B ERW Pipe vs ASTM A333 Grade 6 Pipe

ASTM A53 Grade B ERW Pipe is designed for general-purpose use, providing good strength, weldability, and cost efficiency for transporting water, oil, gas, air, and for structural purposes at normal temperatures. ASTM A333 Grade 6 Pipe is made for low-temperature service, offering higher impact toughness to withstand subzero conditions without cracking. ASTM A53 is ideal for ambient climate projects and comes in various ASTM A53 ERW pipe sizes for broad industrial use, while ASTM A333 is selected for cryogenic applications, LNG plants, and Arctic or cold-weather installations. The primary difference is in their temperature tolerance and toughness levels, with A333 performing in extreme cold and A53 suitable for regular temperature usage.

Specification of ASTM A53 Grade B Welded Pipe

Types of ASTM A53 Grade B Welded Pipe

Manufacturing Types

Seamless Pipe

Weld-free, perfect for even strength and sizing precision.
Welded Pipe

Welded from flat-rolled steel, widely used where economy and large sizes are required.
ERW Pipe

Electric Resistance Welded (ERW) pipes provide neat, high quality weld seams and are ideal for medium-pressure applications.
EFW Pipe

Electric Fusion Welded (EFW) pipes are welded by fusion welding, usually applied in larger diameters and high-demand processes.

Pipe Forms

Round Pipe

The most common shape for fluid and gas transport.
Square Pipe

Used in architectural and structural applications requiring angular profiles.
Rectangular Pipe

Provides greater strength in load-bearing regions and flat structures.
Hydraulic Pipe

Designed to provide precise dimensional control for fluid systems under pressure.

Contact Midland Alloys Inc. for Your ASTM A53 Grade B Welded Pipe Needs

Contact us today to discuss how ASTM A53 Grade B Welded Pipes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

Chemical Composition of ASTM A53 Grade B Welded Pipe

A53 Gr.B	C	Mn	P	S	Cu	Ni	Cr	Mo	V
A53 Gr.B	0.3	1.2	0.05	0.045	0.4	0.4	0.4	0.15	0.08

Mechanical Properties of ASTM A53 Grade B Welded Pipe

Grade	Yield Strength	Tensile Strength
A53 Gr.B	240	415

ASTM A53 Grade B Welded Pipe Equivalent Grades

Grade	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
A53 Gr.B	240	415	20

Carbon Steel Pipes Grades We Offer

Carbon Steel Pipe

ASTM A53 Grade B ERW Pipe

ASTM A106 Grade B Seamless Pressure Pipe

ASTM A333 Grade 6 Pipe

ASTM A671 GR CC60 cl22 Pipe

ASTM A672 GR B60 class 12 Pipe

Dimensions Chart

Weight Chart

Dimensions Chart

Weight Chart

Manufacturing Process of ASTM A53 Grade B Welded Pipe

Round Bar

Analytic

Cut to Length

Centering

Heating

Perforation

Inspection of Size

Pickling

Inspection of Surface

Lubricating

Cold Drawing (Cold Rolling)

Degreasing

Annealing

Straightening

Cut

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping

Applications of Schedule 40 SA53 GRB Seamless Pipe

Schedule 40 SA53 GRB Seamless Pipes are widely used in industries where strength, safety, and reliability are important. They transport crude oil, natural gas, and petroleum products, as well as manage process pipes in refineries. In construction, they are utilized for structural frames, piling, scaffolding, fire protection systems, and water supply lines. In power generation, they serve in high-pressure steam lines, cooling water systems, boiler feed lines, and plant piping networks where dependable flow and performance are essential.

Offshore Industry

Nuclear Industries

Refineries

Ship Building

Aerospace

Pharmaceutical

Why Choose Midland Alloys Inc. for Schedule 40 SA53 GRB

Midland Alloys Inc. is a trusted name in supplying ASTM A53 Grade B ERW Pipe worldwide. We focus on quality, holding ISO 9001:2015, PED 2014/68/EU, and EN 10204 3.1/3.2 Mill Test Certificates. We support third-party inspections from TÜV, BV, SGS, and DNV, giving clients added assurance. Every tube goes through strict in-house and third-party testing, including hydrostatic testing for pressure resistance, ultrasonic testing for internal flaws, radiographic testing for weld seam quality, and PMI for grade validation. Mechanical tests such as tensile, hardness, flattening, and bend tests are carried out as per the order’s needs. Our clients return because of consistent quality, professional service, and dependable support.

Frequently Asked Questions About ASTM A53 Grade B Welded Pipe

Can ASTM A53 Grade B ERW Pipe be bent or shaped on-site?

Yes, it can be bent within limits using proper tools and techniques.

Is pre-heating required before welding ASTM A53 Grade B ERW Pipe?

Pre-heating is usually not required, but may be recommended for thicker walls.

Does ASTM A53 Grade B ERW Pipe support hot-dip galvanizing?

Yes, it accepts hot-dip galvanizing without affecting mechanical properties.

NPS [inches]	OD [MM]	OD [inches]	WT [MM]	WT [inches]	Weight [kg/m]	Weight [lb/ft]
1/4	13.7	0.540	2.24	0.088	0.84	0.42
1/2	21.3	0.840	2.77	0.109	1.27	0.85
1 1/4	42.2	1.660	3.56	0.140	3.39	2.27
1 1/2	48.3	1.900	3.68	0.145	4.05	2.72
2	60.3	2.375	3.91	0.154	5.44	3.65
3/4	26.7	1.050	2.87	0.113	1.69	1.13
1	33.4	1.315	3.38	0.133	2.50	1.68
8	219.1	8.625	8.18	0.322	42.55	28.55
10	273.0	10.750	9.27	0.365	60.31	40.48
12	323.8	12.750	10.31	0.406	79.73	53.52
6	168.3	6.625	7.11	0.280	28.26	18.97
1/8	10.3	0.405	1.73	0.068	0.37	0.24
20	508.0	20	15.09	0.594	183.42	123.11
24	610.0	24	17.48	0.688	255.41	171.29
14	355.6	14	11.13	0.375	94.55	54.57
16	406.4	16	12.70	0.500	123.30	82.77
18	457.0	18	14.27	0.562	155.80	104.67
2 1/2	73.0	2.875	5.16	0.203	8.63	5.79
3	88.9	3.500	5.49	0.216	11.29	7.58
3 1/2	101.6	4.000	5.74	0.226	13.57	9.11
4	114.3	4.500	6.02	0.237	16.07	10.79
5	141.3	5.563	6.55	0.258	21.77	14.62
32	813.0	32	17.48	0.688	342.91	230.08

Nominal Dia (inch)	Nominal Dia (mm)	O.D. (inch)	O.D. (mm)	SCH 30/40 Wall Thickness (inch)	SCH 30/40 Wall Thickness (mm)	SCH 30/40 STANDARD WEIGHT (kg/mtrs)	SCH 30/40 STANDARD WEIGHT (lbs/ft)	SCH 10 Wall Thickness (inch)	SCH 10 Wall Thickness (mm)	SCH 10 STANDARD WEIGHT (kg/mtrs)	SCH 10 STANDARD WEIGHT (lbs/ft)
1/2”	15	0.840	21.30	0.109	2.77	1.27	0.85	–	–	–	–
3/4”	20	1.050	26.70	0.113	2.87	1.69	1.13	0.083	2.11	1.28	0.96
1”	25	1.315	33.40	0.133	3.38	2.50	1.68	0.109	2.77	2.09	1.41
1.1/4”	32	1.660	42.20	0.140	3.56	3.39	2.27	0.109	2.77	2.69	1.81
1.1/2”	40	1.900	48.30	0.145	3.68	4.05	2.72	0.109	2.77	3.11	2.09
2”	50	2.375	60.30	0.154	3.91	5.45	3.66	0.109	2.77	3.93	2.64
2.1/2”	65	2.875	73.00	0.203	5.16	8.64	5.80	0.120	3.05	5.26	3.53
3”	80	3.500	88.90	0.216	5.49	11.29	7.58	0.120	3.05	6.46	4.34
3.1/2”	90	4.000	101.60	0.226	5.74	13.58	9.12	0.120	3.05	7.41	4.98
4”	100	4.500	114.30	0.237	6.02	16.09	10.80	0.120	3.05	8.37	5.62
5”	125	5.563	141.30	0.258	6.55	21.79	14.63	0.134	3.40	11.58	7.78
6”	150	6.625	168.30	0.280	7.11	28.29	18.99	0.134	3.40	13.85	9.30
8”	200	8.625	219.10	0.277	7.04	36.82	24.72	0.188	4.78	25.26	16.96
10”	250	10.750	273.10	0.307	7.08	51.05	34.27	0.188	4.78	31.62	21.23