Z12CNDV12, Z12CNDV12-03 belongs to martensitic heat-resistant steel, Steel for turbine blades used for super (super) critical units, In terms of purity, the steel requirements for Z12CNDV12 steam turbine blades are very strict. Z12CNDV12 steel is developed on the basis of Cr-12 martensitic stainless steel by adding Ni, Mo, V and other elements, and has good comprehensive performance after quenching and tempering., This steel can be used up to a maximum temperature about 560 °C / 1040 °F. Typical application for 1.4938/1.4939 include highly stressed bolts in turbine. nickel and cobalt alloys with the addition of vanadium for carburization with a martensitic structure, which due to high strength properties and significantly increased resistance to oxidation, is used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures such as rotors and turbine blades, bolts in the power industry, pump components as well as coupling parts in aircraft constructions.Unique composition chemical composition ensures high hardenability, great nawęglonej layer parameters (hardness, toughness), and a clear reduction in deformations arising during heat treatment.Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties is a high-alloy chromium-nickel-molybdenum Creep resisting steels, nickel and cobalt alloys with the addition of vanadium for carburization with a martensitic structure, which due to high strength properties and significantly increased resistance to oxidation, is used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures such as rotors and turbine blades, bolts in the power industry, pump components as well as coupling parts in aircraft constructions.Unique composition chemical composition ensures high hardenability, great nawęglonej layer parameters (hardness, toughness), and a clear reduction in deformations arising during heat treatment.Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
AOD+ESR
EF+LF+VOD+ESR
| Grade | Chemical Composition WT % | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Cr | Mo | Ni | V | N | ||
| X12CrNiMoV12-3, 1.4938, 1.4933 | 0.08 - 0.15 | 0.4 - 0.9 | Max 0.5 | Max 0.025 | Max 0.015 | 11.0 - 12.5 | 1.5 - 2.0 | 2.0 - 3.0 | 0.25 - 0.40 | 0.02 - 0.04 | |
| X11CrNiMoN12 | 0.08 - 0.15 | 0.4 - 0.9 | Max 0.50 | Max 0.025 | Max 0.015 | 11.0 - 12.5 | 1.5 - 2.0 | 2.0 - 3.0 | 0.25 - 0.40 | 0.02 - 0.04 | |
| UNS S64152, AMS 5718, AMS 5719 | 0.08 - 0.15 | 0.5 - 0.9 | Max 0.35 | Max 0.025 | Max 0.025 | 11.0 - 12.5 | 1.5 - 2.0 | 2.0 - 3.0 | 0.25 - 0.40 | 0.01 - 0.05 | |
| Z12CNDV12-03, X13VD | 0.08 - 0.15 | 0.5 - 0.9 | Max 0.35 | Max 0.030 | Max 0.015 | 11.0 - 12.5 | 1.5 - 2.0 | 2.0 - 3.0 | 0.25 - 0.40 | 0.02 - 0.04 | |
| 10Cr12Ni3Mo2VN, S47250 | 0.08 - 0.13 | 0.5 - 0.9 | Max 0.40 | Max 0.030 | Max 0.025 | 11.0 - 12.5 | 1.5 - 2.0 | 2.0 - 3.0 | 0.25 - 0.40 | 0.02 - 0.04 | |
+QT:
Tensile strength, Rm: 930 - 1130 MPa
Yield point, Re: > 760 MPa
Elongation, A: >14%
Impact, KV20℃: > 40 J
Reduction of area, Z: >40%
Hardness in softening annealed condition: ~250 HB
Tensile strength, Rm: 930 - 1130 MPa
Yield point, Re: Min 760 MPa
Elongation, A: Min 14%
Impact, KV20℃: Min 40 J
Contraction, Z: Min 40%
Hardness annealed: approximation 250 HB
Softening in the temperature of 660 - 690 ℃
Tempering in oil at temperatures of 1030 - 1060 ℃ with cooling to -65 ℃, after which tempering is carried out at a temperature of about 220 - 280 ℃
Hardening with air cooling in the temperature range of 1040 - 1060 ℃ with tempering at temperatures 600-700 ℃
Carburizing at temperatures around 950 ℃
| Grade | Shape | Dimensionmm | Qty.kg |
|---|---|---|---|
| 1.4938, X12CrNiMoV12-3 | Round bar | Φ160 | 584 |
| 1.4938, X12CrNiMoV12-3 | Round bar | Φ190 | 422 |
Steel grade
Special steel