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| Brand Name: | YUHONG |
| Model Number: | ASTM A210 Gr.A1 Carbon Steel Seamless Tube |
| MOQ: | 1000kgs |
| Payment Terms: | L/C,T/T |
ASME SA210 Gr.A1 Seamless Boiler Tube Carbon Steel Seamless Heat Exchanger Tube
ASME SB210 Gr. A1 tubes are a cost-effective, lightweight, and thermally efficient solution for heat transfer surfaces in low to moderate pressure, low-velocity, non-seawater, and carefully controlled corrosion environments where galvanic compatibility is properly managed. The clients choose SB210 GR A1 not as a generic "better" material, but as a targeted corrosion-mitigation and performance solution for specific low-pressure, weight-sensitive applications where water or process chemistry makes carbon steel a poor choice.
ASME SA210 Gr.A1 Carbon Steel Seamless Tube Chemical Components (%)
| Steel Grade | C | Si | Mn | S | P |
|---|---|---|---|---|---|
| ASTM A210 Gr.A1/ ASME SA210 Gr.A1 | ≤0.27 | ≥0.10 | ≤0.93 | 0.035 | 0.035 |
ASME SA210 Gr.A1 Carbon Steel Seamless Tube Mechanical Properties
| Grade | Tensile strength (Mpa) |
Yield point(Mpa) not less than |
Elongation(%) not less than |
|---|---|---|---|
| ASTM A210 Gr.A1/ ASME SA210 Gr.A1 | ≥415 | 255 | 30 |
Manufacturing: SB210 covers tubes produced by drawing (seamless or from welded hollows). For GR A1, they are supplied in the as-drawn (strain-hardened) temper, not annealed.
Why Unannealed? The strain-hardened temper provides sufficient strength for handling and service while retaining enough ductility for the critical tube-to-tubesheet joining process (rolling/expanding).
Comparison to Other Common Boiler Tube Standards
To understand where A178 Grade A fits, it helps to compare it to other frequent specifications:
|
Standard |
Primary Process | Key Difference from A178 Gr. A | Typical Use Case |
| ASTM A178 Grade C | ERW | Higher carbon & manganese for higher strength at temp. | Superheater sections (hotter than boiler). |
| ASTM A192 | Seamless | Seamless construction, guaranteed high pressure hydraulic test. | High-pressure boiler tubes. The default choice for critical, high-pressure sections. |
| ASTM A210 | Seamless | Medium-carbon steel, higher strength than A192. Available in Grades A-1 and C. | Superheaters and heat exchangers requiring more strength. |
| ASTM A214 | ERW | Similar to A178 but for condenser and heat exchanger service. Usually supplied annealed for corrosion resistance, not specifically for high-temp boilers. | Condensers, low-pressure heat exchangers. |
Simple Rule of Thumb:
For general water-walled boiler sections at moderate temperatures and pressures, A178 Gr. A (ERW) is a cost-effective and standard choice. When pressure and temperature increase, or for superheaters, engineers often move to A192/A210 (seamless) or A178 Gr. C.
Application
Shell & Tube Heat Exchangers / Condensers: Especially in:
Power Plant Surface Condensers: For cooling steam using river or sea water (on the tube side).
Industrial Coolers & Evaporators.
Boiler Feedwater Heaters.
Air-Cooled Heat Exchanger (ACHE) Bundles: Where low-temperature corrosion is a concern.
Cryogenic Heat Exchangers: Due to aluminum's good properties at low temperatures.
Process Industry: For handling corrosive process streams where copper or steel alloys are not suitable (e.g., certain chemicals, pharmaceuticals).
