ASME SA268 ASTM A268 TP430 Stainless Steel Seamless Tube For Power Plant
Brand Name:YUHONG SPECIAL STEEL
Certification:ISO,SGS,BV,ISO & SGS,ISO/CE/SGS
Model Number:ASTM A268 TP430 Ferritic Stainless Steel Seamless Pipes
Minimum Order Quantity:100KGS
Delivery Time:20-80
Payment Terms:L/C, T/T
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ASME SA268 ASTM A268 TP430 Stainless Steel Seamless Tube For Power Plant
We are one of the largest manufacturers of stainless steel, duplex
and alloy steel pipes in China. After more than 20 years of
development, we have accumulated a large number of customers all
over the world, and Yuhong products have won the praise of our
customers.
ASTM A268 is a standard specification for seamless and welded tubes
and pipes of ferritic and martensitic stainless steels for general
purposes, in grades TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439,
and TP446, and ASME SA268 is an alternative standard covering a range of nominal thickness
grades of ferritic and martensitic stainless steels. grades of
ferritic and martensitic stainless steel welded steel tubing for
general corrosion resistance and high temperature environments.
Tubing must be seamless or welded with no filler metals added;
tubing must be reheated to 1200.F [650.C] or higher and then cooled
to meet the requirements of this specification; and all tubing must
be free of excessive scale and suitable for inspection. A small
amount of oxidation will not be considered scale.
Chemical Composition
| Grade: | TP410 | TP430 | TP439 |
| UNS | S41000 | S43000 | S43035 |
| C, Max | 0.15 | 0.12 | 0.07 |
| Mn,Max | 1 | 1 | 1 |
| P, Max | 0.04 | 0.04 | 0.04 |
| S, Max | 0.03 | 0.03 | 0.03 |
| Si, Max | 1 | 1 | 1 |
| Ni | … | … | 0.50max |
| Cr | 11.5-13.5 | 16.0-18.0 | 17.00-19.00 |
| Mo | … | … | … |
| Al | … | … | 0.15 |
| Cu | … | … | … |
| N | … | … | 0.04 |
| Ti | … | … | 0.20+4(C+N)Min, 1.10max |
Mechanical Properties
| Grade | Tensile Strength, Min, Ksi [MPa] | Yield Strength, Min, Ksi [MPa] | ELONGATION. MIN, % |
| TP410 | 55 [380] | 30 [205] | 20 |
| TP430 | 60 [415] | 35 [240] | 20 |
| TP439 | 60 [415] | 30 [205] | 20 |
Physical Properties
| Density, g/cm3 (lb/in.3) | 7.8 (0.28) |
| Melting point, °C (°F) | 1425-1510 (2600-2750) |
| Specific heat capacity, J/kg · K (Btu/lb · °F) | 460 (0.11) at 0-100 °C (32 to 212 °F) |
| Electrical resistivity, μΩ·m | 0.60 at 20 ℃ |
| 430 stainless steel magnetic permeability | 600-1100 (Approximate) |
| Elastic modulus (Modulus of elasticity), GPa (106 psi) | 200 (29.0) |
| Thermal diffusivity, mm2/s | 7.3 |
| Thermal conductivity, W/m · K (Btu/ft · h · °F) | 26.1 (15.1), at 100 ℃ (212 °F) |
| 26.3 (15.2), at 500 ℃ (932 °F) | |
| Coefficient of thermal expansion, μm/m · °C (μin./in. · °F) | 10.4 (5.8), at 0-100 ℃ (32-212 °F) |
| 11.0 (6.1), at 0-315 ℃ (32-600 °F) | |
| 11.4 (6.3), at 0-538 ℃ (32-1000 °F) |
SS430 Stainless Steel Heat Treatment
- Annealing: Recommended annealing treatment for 430 steel is 705-790 °C (1300-1450 °F).
- Forging: Typical forging temperature for SS430 is 815-1120 °C (1500-2050 °F).
Heat Resistance
| Maximum service temperatures, °C (°F) | ||
| AISI | Intermittent service | Continuous service |
| 430 | 870 (1600) | 815 (1500) |
ASME SA268 ASTM A268 TP430 Stainless Steel Seamless Tube For Power Plant
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