ASTM A210 Grade C Seamless Steel Tubes are made up of medium carbon steel tubes with high tensile strength, which makes them ideal for use in conditions where high pressure and temperature is essential such as in the case of heat exchangers, super heaters, and boilers. ASTM A210 Seamless Tubes have 0.35% carbon and 0.29% to 1.06% manganese. ASTM A210 Grade C Tubes are used in thermal power plants, petrochemicals industry, and industrial boiler systems, owing to their excellent mechanical strength and durability. These seamless tubes are made by ASTM and ASME standards, ensuring their performance in harsh environments. At USA Piping Solution, we supply premium-quality ASTM A210 Grade C Seamless Tubes and also provide other products like Carbon Steel Pipes & Tubes with strict quality testing, accurate dimensions, and industry-compliant certifications to meet the requirements of global industrial projects.
Specification of ASTM A210 Grade C Seamless Tube
| Feature | Detail |
|---|---|
| Standard | ASTM A210/A210M, ASME SA210 |
| Outside Diameter (OD) | 1/2" to 5" (12.7 mm to 127 mm) |
| Wall Thickness | 0.035" to 0.500" (0.9 mm to 12.7 mm) |
| Schedules | SCH 20, 30, 40, STD, XH, 80, 100, 120, 140, 160, XXH |
| Length | Single Random, Double Random, Cut Length (Max 25 m) |
| End Types | Plain End, Beveled End, Threaded |
| Surface Finish | Black, Varnished, Oiled, Pickled, Shot Blasted |
| Manufacturing Method | Hot-finished or Cold-finished |
ASTM A210 Grade C Seamless Tube Equivalent Grades
| Standard | ASTM A210 Gr. C | ASME SA210 Gr. C | DIN 17175 | EN 10216-2 | JIS G3461 | BS 3059 |
|---|---|---|---|---|---|---|
| Equivalent Grade | Grade C | Grade C | St45.8 | P265GH | STB410 | Grade 360 |
Difference between ASTM A210 Grade C and Grade A1
The A210 Grade A1 Tubes and ASTM 210 Grade C is very simillar in many things but the main difference between them is listed below.
| Property | Grade C | Grade A1 | Key Difference |
|---|---|---|---|
| Carbon (max) | 0.35% | 0.27% | Grade C has higher Carbon, resulting in higher strength. |
| Yield Strength (min) | 275 MPa (40 ksi) | 215 MPa (31 ksi) | Grade C yield is approx. 28% stronger. |
| Tensile Strength (min) | 485 MPa (70 ksi) | 415 MPa (60 ksi) | Grade C has a 17% higher ultimate tensile strength. |
| Max Hardness | 89 HRB | 79 HRB | Grade C is harder, confirming its higher strength profile. |
| Primary Use | Superheaters, high-pressure boilers | Water walls, economisers, moderate service | Grade C is reserved for higher-duty applications. |
| Weldability | Slightly lower | Better | Grade A1 is easier to weld due to lower carbon content. |
ASTM A210 Grade C Seamless Tube Wall thickness Chart
| Outside Diameter: in. (mm) | Over (+) Tolerance | Under (-) Tolerance |
|---|---|---|
| 1 1/2 (38.1) and under | 20% | 0% |
| Over 1 1/2 (38.1) | 22% | 0% |
Outer Diameter Chart of ASTM A210 Grade C Seamless Tube
| Outside Diameter: In. (mm) | Over (+) In. (mm) | Under (-) In. (mm) |
|---|---|---|
| Under 1 (25.4) | 0.004 (0.10) | 0.004 (0.10) |
| 1 to 1½ (25.4 to 38.1), Incl. | 0.006 (0.15) | 0.006 (0.15) |
| Over 1½ to 2 (38.1 to 50.8), Excl. | 0.008 (0.20) | 0.008 (0.20) |
| 2 to 2½ (50.8 to 63.5), Excl. | 0.010 (0.25) | 0.010 (0.25) |
| 2½ to 3 (63.5 to 76.2), Excl. | 0.012 (0.30) | 0.012 (0.30) |
ASTM A210 / A210M Grade C Seamless Tube Cut Length Tolerance
| Outside Diameter (OD) Range | Over (+) Tolerance | Under (-) Tolerance |
|---|---|---|
| Under 2" (50.8 mm) | 1/8" (3 mm) | 0 (0 mm) |
| 2" (50.8 mm) and Over | 3/16" (5 mm) | 0 (0 mm) |
| All Sizes (General limit) | 3/16" (5 mm) | 0 (0 mm) |
Hydrostatic Test Pressure Chart of ASTM A210 Grade C Seamless Tube
| Outside Diameter (OD) of Tube | Pressure: psi | Pressure: [MPa] |
|---|---|---|
| Under 1" [25.4 mm] | 1000 | [7] |
| 1" to 1½" [25.4 to 38.1 mm], excl. | 1500 | [10] |
| 1½" to 2" [38.1 to 50.8 mm], excl. | 2000 | [14] |
| 2" to 3" [50.8 to 76.2 mm], excl. | 2500 | [17] |
Application Uses of ASTM A210 Grade C Seamless Tube
- Power Generation Industry
- Oil and Gas Industry
- Petrochemical Industry
- Chemical Processing Industry
- Refinery Industry
- Thermal Power Plants
- Offshore Industry
Other Grades of ASTM Pipes & Tubes
- ASTM A691 Grade 91 (9Cr-1Mo-V) EFW Pipe
- ASTM A691 Grade 22 (2¼Cr-1Mo) EFW Pipe
- ASTM A691 Grade 11 (1¼Cr-½Mo) EFW Pipe
- ASTM A691 Grade 5 (5Cr-½Mo) EFW Pipe
- ASTM A691 Grade 9 (9Cr-1Mo) EFW Pipe
- ASTM A519 4130 Seamless Tube
- ASTM A519 4140 Seamless Tube
- ASTM A519 8620 Seamless Tube
- ASTM A192 / ASME SA192 tubes
Frequently Asked Questions
What is ASTM A210 Grade C Seamless Tube?
ASTM A210 Grade C Seamless Tube is a medium carbon steel boiler tube designed for high-pressure and high-temperature services such as boilers, superheaters, and heat exchangers.
What is the difference between ASTM A210 Grade A1 and Grade C?
ASTM A210 Grade C has higher carbon content and greater tensile strength than Grade A1, making it more suitable for heavy-duty and high-pressure applications.
Is ASTM A210 Grade C suitable for high-temperature applications?
Yes, ASTM A210 Grade C tubes are specially designed for high-temperature and high-pressure environments in power plants and industrial boilers.
Are ASTM A210 Grade C tubes seamless or welded?
ASTM A210 Grade C tubes are primarily manufactured as seamless tubes for better strength, pressure handling, and durability.
What testing is performed on ASTM A210 Grade C tubes?
These tubes commonly undergo hydrostatic testing, flattening tests, flaring tests, hardness tests, tensile tests, and non-destructive testing to ensure quality and performance.