USA SAE A 688/A 688M (2012) , A 688 Grade TP XM-29 Specialsteel Welded Austenitic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | A 688 Grade TP XM-29 | Austenite | SAE | USA | Welded Austenitic Stainless Steel Feedwater Heater Tubes |
| C | Si | Mn | P | S | Cr | Ni | N |
|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | 11.5 -14.5 | ≤0.06 | ≤0.03 | 17.0 -19.0 | 2.25 -3.75 | 0.20 -0.40 |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 411 (≥) | 364 (≥) | 33 | 31 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 21 | - | - | 0.32 | - | |||
| 188 | 926 | - | 22.3 | 424 | - | ||
| 349 | - | 42 | 22.2 | 143 | 412 |
Heat treated : 1676°C - 1349°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| XM-29 | |||
| XM-29J | |||
| TPXM-29 | |||
| TPXM-29 | |||
| TPXM-29 | |||
| TPXM-29 | |||
| XM-29 | |||
| S24000 | |||
| S24000 | |||
| S24000 | |||
| S24000 | |||
| S24000 | |||
| S24000 | |||
| S24000 |
| A 688/A 688M (2012) | Welded Austenitic Stainless Steel Feedwater Heater Tubes | A-688-A-688M--(2012)-.pdf |
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