403Cb+, UNS S41041, H46 martensitic stainless steel is an AOD + ESR melted alloy with additional alloying elements giving it good strength and temper resistance at higher temperatures up to 1200oF. Similar to the 410 stainless this grade has the ability to be heat treated to multiple different strength levels. Because of the temper resistance this alloy is soley used in the power generation market as steam and gas turbine blades.
AOD+ESR
| Grade | Chemical Composition WT % | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Cr | Cb | Ni | Mo | Al | V | N | |
| 410Cb, 403Cb, XM-30 | 0.13-0.18 | 0.4-0.6 | Max 0.50 | Max 0.03 | Max 0.03 | 11.50 - 13.0 | 0.15 - 0.45 | Max 0.5 | Max 0.20 | Max 0.05 | ||
| UNS S41041 | 0.13-0.18 | 0.4-0.6 | Max 0.50 | Max 0.03 | Max 0.03 | 11.50 - 13.0 | 0.15 - 0.45 | Max 0.5 | Max 0.20 | Max 0.05 | ||
| 403Cb+, B50A365 A, A1 | 0.15-0.25 | 0.5-0.8 | 0.2-0.60 | Max 0.025 | Max 0.025 | 10.00-11.00 | 0.35-0.55 | 0.3-0.6 | 0.80-1.10 | 0.15-0.25 | 0.04-0.08 | |
| 403Cb+, B50A365 B, B1, C | 0.15-0.25 | 0.5-0.8 | 0.2-0.60 | Max 0.020 | Max 0.010 | 10.00-11.00 | 0.35-0.55 | 0.3-0.6 | 0.80-1.10 | 0.15-0.25 | 0.04-0.08 | |
| Condition of heat treatment | Tensile Rm(MPa) | Yield Rp0.2(MPa) | Elongation A(%) | Reduction in cross section on fracture Z (%) | Impact AKV/AKU(J) | Brinell Hardness(HBW) |
|---|---|---|---|---|---|---|
| Annealed | - | - | - | - | - | - |
| HT 1136℃~1163℃, Min 677℃ X 2h tempered | Min 795 | Min 515 | Min 15.0 | Min 50.0 | Min 35 | Max 277 |
HT 1136℃~1163℃, ≥677℃ X 2h tempered
| Grade | Shape | Dimensionmm | Qty.kg |
|---|---|---|---|
| X90CrMoV18 | Round bar | 30mm | 1632 |
| X90CrMoV18 | Round bar | 35mm | 1239 |
| X90CrMoV18 | Round bar | 40mm | 2698 |
| X90CrMoV18 | Round bar | 50mm | 3156 |
| X90CrMoV18 | Round bar | 60mm | 6985 |
| X90CrMoV18 | Round bar | 80mm | 4698 |
| X90CrMoV18 | Round bar | 100mm | 3987 |
| X90CrMoV18 | ESR Ingot | 59850 |
Steel grade
Special steel