ASTM A268 UNS S41000 / TP410 Stainless Steel Tube Bright Annealed Tube Heat Exchanger Tube
ASTM A268 TP410 Stainless Steel Seamless Tube Heat Exchanger Tube Bright Annealed Tubes
ASTM A268 TP410 stainless steel tubes are a workhorse grade chosen for their balance of cost, strength, and moderate corrosion/heat resistance. Type 410 is a martensitic (not ferritic, but included under A268 for tubular products) stainless steel.They are a standard choice for feedwater heaters, oil & gas tubulars, and mechanical components where operating conditions are well-defined and not highly aggressive. Always consult corrosion and materials engineers for specific service environment suitability.
In summary, the engineers sacrifice superior corrosion resistance and formability (which austenitic grades offer) in exchange for mechanical durability and lower cost. Only choose 410 if the environment is mildly corrosive (not marine or highly acidic).
Key Characteristics of Stainless Steel TP410 Tube:
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Martensitic Structure: Can be hardened by heat treatment (quenching and tempering).
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Magnetic: Yes, strongly magnetic.
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Corrosion Resistance: Moderate. Good resistance to atmospheric corrosion, fresh water, mild acids, and alkalis. Not suitable for severe corrosive environments (like chloride-rich settings where pitting can occur).
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Mechanical Properties: High strength and hardness after heat treatment, but with lower ductility compared to austenitic grades (like 304).
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Machinability: Good.
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Weldability: Fair, but requires pre-heating and post-weld heat treatment to avoid cracking and restore corrosion resistance.
Equivalent Grade of ASTM A268 UNS S41000 / TP410 Stainless Steel Tube Bright Annealed Tube Heat Exchanger Tube
| STANDARD | EN / WERKSTOFF NR. | UNS | JIS | BS | AFNOR |
|---|---|---|---|---|---|
| SS 410 | 1.4006 | S41000 | SUS 410 | 410 S 21 | Z 12 C 13 |
Chemical Composition % of ASTM A268 UNS S41000 / TP410 Stainless Steel Tube Bright Annealed Tube Heat Exchanger Tube
| C % | Mn % | P % | S % | Si % | Cr % |
|---|---|---|---|---|---|
| 0.15 maximum | 1.00 maximum | 0.040 maximum | 0.030 maximum | 1.00 maximum | 11.5-13.5 |
Mechanical Properties of ASTM A268 UNS S41000 / TP410 Stainless Steel Tube Bright Annealed Tube Heat Exchanger Tube
| Tensile Stress, Mpa | Yield Stress, MPa | Elongation, % | Hardness, HB |
|---|---|---|---|
| 415 minimum | 205 minimum | 20 minimum | 207 maximum |
Common Alternatives to Consider:
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For Better Corrosion Resistance: ASTM A269 TP304/316L (Austenitic).
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For Better High-Temp Scaling Resistance: ASTM A213 TP441 (Ferritic).
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For Automotive Exhaust: ASTM A268 TP409 (Ferritic, stabilized, more common for exhausts).
Application
1. Oil & Gas Industry
2. Steam turbines,
3. Pump, shafts
3. Automotive & Transportation
4. Mechanical & Structural Applications
5. Heat Treatment & Process Industries
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