ASTM A672 GR B60 Class 12 Pipe Manufacturer
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Midland Alloys is a leading ASTM A672 Grade b60 class 22 manufacturers with a strong global presence. The ASTM A672 GR B60 Class 12 Pipe is a carbon steel pipe made by electric-fusion welding under pressure and heat. This approach ensure high weld quality and consistent performance. These pipes are noted for their high chemical compatibility with elements such as C, Si, Mn, P, and S, making them ideal for crucial applications. The SA 672 Gr.b60 cl.22 welded Pipe, manufactured under ASTM A672 and ASME SA672 specifications, is available in widths ranging from 6″ NB to 24″ NB, thicknesses from 2 mm to 60 mm, and lengths up to 18 meters in a variety of finishes including 2B, No.1, No.4, and mirror. Pipes can be supplied bare, painted black, varnished, galvanized, or PE coated for corrosion resistance. We use advanced production equipment and adhere to tight quality control standards, making us the chosen choice for offering carbon steel A672 Gr b60 material in custom sizes, shapes and specifications all over the world.
Benefits of ASTM A672 Gr B60 Class 12 Pipe
ASTM A672 GR B60 Class 12 Pipe offer a balance of strength, weldability, and cost-effectiveness that makes it valuable across industries. When compared to an ASTM A672 B60 cl 22 Equivalent, it deliver dependable performance for both standard and critical operations.
- Strong weld joints for high-pressure systems
- Long service life with proper coating options
- Meets ASTM A672/ASME SA672 standards for quality assurance
- Good chemical compatibility for diverse applications
- Wide availability in different finishes and coatings
- Flexible sizes and thickness for project requirements
- Cost-effective alternative to other equivalent grades
Uses of ASTM A672 Gr B60 Class 12 Pipe
ASTM A672 Cl22 B60 LSAW / Dsaw Steel Pipe is used in power plants for transporting steam and hot water under pressure. In the oil and gas industry, it is used for pipelines that carry crude oil, natural gas, and refined products. SA 672 Gr.b60 cl.22 welded Pipe is also used in chemical processing units for moving corrosive fluids, marine applications use it for water circulation and cooling systems. Additionally, refineries, structural projects, and EPC contractors use these pipes for high-strength and durable pipeline solutions.
Difference between ASTM A672 GR B60 Class 12 Pipe vs ASTM A671 GR CC60 Cl22 Pipe
The primary distinction between ASTM A672 GR B60 Class 12 Pipe and ASTM A671 GR CC60 Cl22 Pipe is in their production process and application applicability. ASTM A672 GR B60 Class 12 Pipe is made from carbon steel A672 Gr b60 utilizing an electric-fusion welding technique. This makes it suitable for high-pressure and high-temperature applications. In contrast, ASTM A671 GR CC60 Cl22 Pipe is made by electric-fusion welding pressure vessel quality steel plate and is intended for low-pressure applications. While both adhere to stringent standards, ASTM A672 is better suited for challenging settings where strength, toughness, and chemical resistance are essential.
Specification of ASTM A672 GR B60 Class 12 Pipe
Sizes in Stock
Seamless Pipe OD : 1/4″ NB – 36″ NB
Welded Pipe OD : 1/8″ NB – 24″ NB
EFW Pipe Size : 12″ NB – 60″ NB
Standard
ASTM A53, A106, A333, A671 /
ASME SA-53, SA-106, SA-333, SA-671
Manufacturing Process
Seamless, ERW, Welded, Fabricated
Form
Round, Square, Rectangular, Hydraulic Etc
Length
Single Random, Double Random & Cut Length.
End
Plain End, Beveled End, Treaded
Schedule
SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS
Surface Finish
Black / Mill Finish, Painted / Coated, Galvanized / Zinc Coated, Polished / Bright
Types of ASTM A672 GR B60 Class 12 Pipe
Manufacturing Types
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Seamless PipeWeld-free, perfect for even strength and sizing precision.
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Welded PipeWelded from flat-rolled steel, widely used where economy and large sizes are required.
-
ERW PipeElectric Resistance Welded (ERW) pipes provide neat, high quality weld seams and are ideal for medium-pressure applications.
Pipe Forms
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Round PipeThe most common shape for fluid and gas transport.
-
Square PipeUsed in architectural and structural applications requiring angular profiles.
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Rectangular PipeProvides greater strength in load-bearing regions and flat structures.
Contact Midland Alloys Inc. for Your ASTM A672 GR B60 Class 12 Pipe Needs
Contact us today to discuss how ASTM A672 GR B60 Class 12 Pipe
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
| Specification | Steel grade | Chemical composition | Remarks | |||||
| C | Si | Mn | P | S | Ti | |||
| Pipes for pressure service ASTM A672 | -/A45 | -/0.17 | – | 0.98 | 0.035 | 0.035 | – | A672 |
| -/A50 | -/0.22 | – | ||||||
| CA55/A55 | 0.28 | – | ||||||
| -/B55 | -/0.20 | 0.13 ~0.45 | ||||||
| CB60/B60 | 0.24 | |||||||
| CB65/B65 | 0.28 | |||||||
| CB70/C70 | 0.31 | 1.30 | ||||||
| -/C55 | -/0.18 | 0.55 ~0.98 | ||||||
| CC60/C60 | 0.21 | |||||||
| CC65/C65 | 0.24 | 0.79 ~1.30 | ||||||
| CC70/C70 | 0.27 | |||||||
| Products | Steel Grade | BASE METAL MECHANICAL COMPOSITION | Welding point tensile strength (N/mm2) | Remarks | |||
| Yield point (N/mm2) | Tensile Strength (N/mm2) | Test Pieces | Elongation (%) | ||||
| Pipes for pressure service ASTM A672 | -/A45 | -/165 | -/310~450 | – | -/30 | -/310~450 | A672 |
| -/A50 | -/185 | -/345~485 | -/28 | -/345~485 | |||
| CA55/A55 | 205 | 380~515 | 27 | 380~515 | |||
| -/B55 | -/205 | -/380~515 | -/27 | -/380~515 | |||
| CB60/B60 | 220 | 415~550 | 25 | 415~550 | |||
| CB65/B65 | 240 | 450~585 | 23 | 450~585 | |||
| CB70/B70 | 260 | 485~620 | 21 | 485~620 | |||
| -/C55 | -/205 | -/380~515 | -/27 | -/380~515 | |||
| CC60/C60 | 220 | 415~550 | 25 | 415~550 | |||
| CC65/C65 | 240 | 450~585 | 23 | 450~585 | |||
| CC70/C70 | 260 | 485~620 | 21 | 485~620 | |||
| ASTM A672 | ASME | EN | DIN | ISO | BS | JIS |
| Grade B60 CL12 | SA672 B60 CL12 | P355N / P355GH | StE 360.7 / St52.0 | L360 | BS 3602-360 | STPT 410 |
Carbon Steel Pipes Grades We Offer
Dimensions Chart
Weight Chart
Dimensions Chart
ASTM A672 GR B60 Class 12 Pipes Dimensions Chart
| 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 |
Weight Chart
ASTM A672 GR B60 Class 12 Pipes Weight Chart
| 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 |
Manufacturing Process of ASTM A672 GR B60 Class 12 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 ASTM A672 GR B60 Class 12 Pipe
Why Choose Midland Alloys Inc. for ASTM A672 GR B60 Class 12 Pipe
Midland Alloys Inc. is a leading ASTM A672 Grade b60 class 22 manufacturer providing quality products and service. Our facilities are ISO 9001:2015 certified, with additional approvals such as PED 2014/68/EU and EN 10204 3.1/3.2 Mill Test Certificates. We support third-party inspections (TPI) from respected agencies including TÜV, BV, SGS and DNV, giving clients full confidence in the products they receive. We work closely with engineering firms, EPC contractors, marine operators, and chemical plants worldwide to ensure timely delivery and full export documentation support. Each ASTM A672 Gr B60 class 12 Pipe go through in-house and third-party testing such as hydrostatic testing for pressure resistance, ultrasonic testing for internal flaws, radiographic testing for weld seam quality, and positive material identification for grade validation. Mechanical tests such as tensile, hardness, flattening, and bend tests are performed as per order requirements. This dedication to quality, combined with our reliable client support and on-time supply chain, have made earned us the trust of repeat clients across the Middle East, Europe, and Southeast Asia. We continue to be a dependable partner for those seeking unmatched quality and professionalism.
Frequently Asked Questions About ASTM A672 GR B60 Class 12 Pipe
They offer good tensile strength, hardness, and toughness for pressure service.
It refers to the specific welding and heat treatment requirements for the pipe.
Yes, it performs reliably in moderate low-temperature applications due to its toughness.
Yes, it can be welded on-site using standard welding methods with proper procedures.
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