X12CrNiTi18-9
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TECHNICAL DATA SHEET - Heat Resisting Steel - DIN X12CrNiTi18-9 / W-Nr 1.4878
MATERIAL CATEGORY: Heat resisting steel / Austenitic corrosion resisting steels
FEATURES AND CLASSIFICATIONS
Heat-resistant steel means one type of steel possesses inoxidizability, enough high-temperature strength and excellent heat-resistant quality under high temperature. Heat resistant steel is divided into oxidation resistant steel and refractory steel according to its performance. Further into Austenitic heat-resistant steel, Martensitic heat-resistant steel, Ferritic heat-resistant steel and Pearlitic heat-resistant steel according to its normalizing.
Austenitic steels - Contains more austenite formative elements like Chromium, manganese, nitrogien. At temperature above 600℃, which possess superior high temerature strength, structure stability, excellent weldability.
Heat-resistant steel means one type of steel possesses inoxidizability, enough high-temperature strength and excellent heat-resistant quality under high temperature. Heat resistant steel is divided into oxidation resistant steel and refractory steel according to its performance. Further into Austenitic heat-resistant steel, Martensitic heat-resistant steel, Ferritic heat-resistant steel and Pearlitic heat-resistant steel according to its normalizing.
Austenitic steels - Contains more austenite formative elements like Chromium, manganese, nitrogien. At temperature above 600℃, which possess superior high temerature strength, structure stability, excellent weldability.
MATERIAL SPECIFICATIONS - DIN 17442,17744, DIN EN 10302, 10095 (2002/1999)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): ≤ 0.10
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 2.00
Phosphorus, P (％) ≤: 0.045
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 17.0 ~ 19.0
Nickel, Ni (％): 9.00 ~ 12.0
Titanium, Ti (％): 5×C ~ 0.80
Carbon, C (％): ≤ 0.10
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 2.00
Phosphorus, P (％) ≤: 0.045
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 17.0 ~ 19.0
Nickel, Ni (％): 9.00 ~ 12.0
Titanium, Ti (％): 5×C ~ 0.80
MECHANICAL PROPERTIES UNDER ROOM TEMPERATURE
Hardness ≤HBS: 215
Thermal forming temp/℃: 1150～800
Heat treatment temp/℃|soft annealing:
Heat treatment temp/℃|quenching: 1020～1120
Hardness ≤HBS: 215
Thermal forming temp/℃: 1150～800
Heat treatment temp/℃|soft annealing:
Heat treatment temp/℃|quenching: 1020～1120
Condition: annealed
Tensile strength, σb/MPa: 500～720
Tensile strength, σb/MPa: 500～720
Yield strength, σs≥/MPa: 190
Elongation, δ5 ≥ (％): 40
Elongation, δ5 ≥ (％): 40
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Condition: annealed
Creep limit (1000h)/MPa，at below temp/℃|600: 110
Creep limit (1000h)/MPa，at below temp/℃|700: 45
Creep limit (1000h)/MPa，at below temp/℃|800: 15
Creep limit (1000h)/MPa，at below temp/℃|900: -
Creep limit (1000h)/MPa，at below temp/℃|1000: -
Creep limit (1000h)/MPa，at below temp/℃|1100: -
Creep rupture strenght (1000h)/MPa，at below temp/℃|600: 142
Creep rupture strenght (1000h)/MPa，at below temp/℃|700: 48
Creep rupture strenght (1000h)/MPa，at below temp/℃|800: 15
Creep rupture strenght (1000h)/MPa，at below temp/℃|900: -
Condition: annealed
Creep limit (1000h)/MPa，at below temp/℃|600: 110
Creep limit (1000h)/MPa，at below temp/℃|700: 45
Creep limit (1000h)/MPa，at below temp/℃|800: 15
Creep limit (1000h)/MPa，at below temp/℃|900: -
Creep limit (1000h)/MPa，at below temp/℃|1000: -
Creep limit (1000h)/MPa，at below temp/℃|1100: -
Creep rupture strenght (1000h)/MPa，at below temp/℃|600: 142
Creep rupture strenght (1000h)/MPa，at below temp/℃|700: 48
Creep rupture strenght (1000h)/MPa，at below temp/℃|800: 15
Creep rupture strenght (1000h)/MPa，at below temp/℃|900: -
Heat resistance temperature in air /℃: 850
APPLICATION FIELD
Heat-resistant steel is widely used in the field of manufacturing the boiler, steam turbine, motive power machine, industrial furnace, and other mechanical parts of aviation, petrochemical engineering operating at high temperature. Those parts must hold the features: high temperature strength, resistance to high temperature oxide etch, enough toughness, excellent machinability, weldability, structure stability based on different usages.
Heat-resistant steel is widely used in the field of manufacturing the boiler, steam turbine, motive power machine, industrial furnace, and other mechanical parts of aviation, petrochemical engineering operating at high temperature. Those parts must hold the features: high temperature strength, resistance to high temperature oxide etch, enough toughness, excellent machinability, weldability, structure stability based on different usages.
MANUFACTURING TECHNOLOGY - SMELTING
Heat resistant steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
PROFILE & DIMENSION
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heat resistant steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
PROFILE & DIMENSION
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W10 - 1500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W6 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shaft, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 6mm X W6 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shaft, and other different shapes based on OEM.
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