SECORP designation (UNS NO.)
Modification of SE-K500 with improved machinability due to restricted carbon and titanium content.
Pump shafts, impellers, valve components. Springs, fasteners. Oil well packers, subsurface safety valves.
| Cr | Ni | Fe | Mo | Cu | C | Others |
|---|---|---|---|---|---|---|
| - | 66.5 | 1.0 | - | Bal | 0.08 | Ti-0.40 Al-2.7 Mn-0.75 |
| METALLURGICAL CONDITION | TENSILE STRENGTH Ksi (MPa) | YIELD STRENGTH 2% OFFSET Ksi (MPa) | ELONGATION (%) | HARDNESS |
|---|---|---|---|---|
| SOL. TRT. AGED | 140 (965) | 85 (585) | 40 | 100 RB |
| COLD DRAWN AGED | 160 (110) | 130 (895) | 17 | 38 RC |
H2SO4
| HIC |
H3PO4 |
HNO3 |
ORGANIC ACIDS |
ALKALINES |
SEA WATER |
CHLORIDE CRACKING |
|
|---|---|---|---|---|---|---|---|
| G | A | X | NR | G | G | G | G |
| SHEET/STRIP ASTM AMS | BARS ASTM AMS |
|---|---|
| - | - |
| - | - |