Kalpataru Piping is a reliable manufacturer, supplier, and dealer of carbon steel products in India that manufactures and supplies ASTM A210 Grade C carbon steel pipes and tubes designed precisely for boiler, heat exchanger, and super heater service applications. A210 GR C is designed to bear high pressure and high temperatures. This grade of carbon steel pipes is preferred in industries like those of power generation plants, oil refining plants, and steam systems, etc. We also have other grades of carbon steel A106 Gr B, A53 Gr B and API 5L Gr B seamless pipes and tubes designed for high-temperature piping applications. Our carbon steel plates and sheets are used extensively for fabrication. Each of the A210 GR C pipes manufactured by us complies with ASME SA210/ASTM A210 concerning chemical composition and mechanical strength too, which comes with a complete certification.
What Is ASTM A210 Grade C Pipe?
ASTM A210 (ASME SA210) is a seamless carbon steel specification purpose-built for boiler and superheater tubes, and for tubing used in high-pressure, high-temperature service. Within the standard, Grade C carries higher carbon content than Grade A1, giving it the highest tensile and yield strength of the A210 family — which is why it’s typically specified where the steam or process temperature and pressure are most demanding. Because A210 GR C shares a similar service profile with carbon steel A106 Grade B pipe, the two are often specified alongside each other on the same project — A106 Gr B for process piping runs, and A210 GR C for the boiler and heat-transfer tubing itself.
Kalpataru Piping manufactures and stocks A210 GR C pipe in a range of outer diameters and wall thicknesses, complete with IBR approval on request. For complementary structural and fabrication material, explore our carbon steel round bars and wires, carbon steel flanges, and carbon steel buttweld fittings, all manufactured and tested under the same quality system.
Table of Contents
- ASTM A210 Grade C Carbon Steel Pipes Specifications
- ASTM A210 Grade C Carbon Steel Pipes Chemical Composition
- ASTM A210 Grade C Carbon Steel Pipes Mechanical Properties
- ASTM A210 Grade C Carbon Steel Pipes Applications
- ASTM A210 Grade C vs Grade A1 — Comparison
- Manufacturing & Quality Process
- FAQ’s About ASTM A210 Grade C Carbon Steel Pipes
ASTM A210 Grade C Carbon Steel Pipes Specifications (Expanded)
|
Specification |
Details |
|---|---|
|
Standard |
ASME SA210 / ASTM A210 |
|
Grades Covered |
Grade A1, Grade C |
|
Type |
Seamless |
|
Outer Diameter |
12.7 mm – 114.3 mm |
|
Wall Thickness |
0.8 mm – 15 mm |
|
Length |
5 – 25 metres (custom lengths available) |
|
Application |
Boiler tubes, superheater tubes, heat exchanger and feedwater heater tubes |
|
End Finish |
Plain end, beveled end (as per project requirement) |
|
Surface Finish |
Bare, oiled, varnished (custom coating on request) |
|
Certification |
IBR approval available, EN 10204 3.1 / 3.2 mill test certificates |
ASTM A210 Grade C Carbon Steel Pipes Chemical Composition
|
Element |
Grade A1 |
Grade C |
|---|---|---|
|
Carbon (C) |
0.27 |
0.35 |
|
Manganese (Mn) |
0.93 |
0.29 – 1.06 |
|
Silicon (Si) min |
0.10 |
0.10 |
|
Phosphorus (P) |
0.035 |
0.035 |
|
Sulfur (S) |
0.035 |
0.035 |
ASTM A210 Grade C Carbon Steel Pipes Mechanical Properties
| Property | Grade A1 | Grade C |
|---|---|---|
| Tensile Strength, min (MPa) | 415 | 485 |
| Yield Strength, min (MPa) | 255 | 275 |
| Elongation (%) | 30 | 30 |
ASTM A210 Grade C vs Grade A1 — Comparison
|
Parameter |
Grade A1 |
Grade C |
|---|---|---|
|
Carbon Content |
Lower (max 0.27%) |
Higher (max 0.35%) |
|
Tensile Strength |
415 MPa min |
485 MPa min |
|
Yield Strength |
255 MPa min |
275 MPa min |
|
Typical Use |
Standard-duty boiler tubes |
Higher-pressure/temperature boiler & superheater tubes |
|
Cost |
Slightly lower |
Slightly higher due to strength premium |
For applications needing corrosion resistance beyond carbon steel — such as marine or chemical-exposure heat exchangers — explore our stainless steel pipes and tubes range
ASTM A210 Grade C Carbon Steel Pipes Applications
- Utility and industrial boiler tubing
- Superheater and reheater tubes in power plants
- Heat exchanger and feedwater heater tubes
- Condenser and steam-generating equipment
- Refinery and petrochemical process heating systems
- General high-pressure, high-temperature piping systems
Manufacturing & Quality Process
- Raw material sourced from certified carbon steel mills with mill test certificates (MTC)
- Seamless tube production with controlled wall thickness for consistent heat transfer performance
- Chemical composition and mechanical property verification at every production batch
- Hydrostatic, flattening, and flaring tests as required by ASME SA210
- IBR (Indian Boiler Regulations) approval available on request for boiler applications
- Secure export packing in wooden boxes with proper labelling and documentation
FAQ’s About ASTM A106 Grade B Pipes
What is ASTM A106 Grade B pipe?
ASTM A106/A106M Grade B is a seamless carbon steel pipe specification intended for high-temperature service. The exact project suitability depends on the governing piping code, design conditions and purchase specification.
What is the difference between ASTM A106 Grade B and ASTM A53 Grade B?
ASTM A106 Grade B is a seamless high-temperature-service pipe specification. ASTM A53 Grade B covers welded and seamless pipe for mechanical and pressure applications and ordinary steam, water, gas and air service. Select the specification required by the project and design code.
What sizes does Kalpataru supply?
The current brief lists a Kalpataru supply range of 1/2 to 36 in NPS and Schedule 10 to XXS, subject to size and availability. ASTM A106/A106M itself has a wider standard scope.
What is the maximum temperature of ASTM A106 Grade B pipe?
Do not use one universal maximum temperature from the ASTM material specification. Allowable service depends on the design code, pressure, wall thickness, allowable stress and project conditions.
Is ASTM A106 Grade B seamless or welded?
ASTM A106/A106M is a seamless carbon steel pipe specification. Do not describe ERW, LSAW or other welded pipe as ASTM A106 product construction.
What tests are required for ASTM A106 Grade B pipe?
The specification includes mechanical testing and bend/flattening testing as applicable, together with hydrostatic and/or nondestructive electric testing requirements. The exact inspection package should match the current ASTM edition and purchase order.
What documents can be supplied?
Orders can be supplied with EN 10204 3.1 MTC and, where applicable and agreed, IBR documentation, third-party inspection and project-specific test reports.
How is ASTM A106 Grade B pipe priced?
Price depends on NPS, schedule or wall thickness, length, quantity, origin/mill, testing/certification, coating/end preparation and delivery destination. Send the full requirement for a size-wise quotation.
