1.4720 / X7CrTi12
2025-12-18 09:14:00 Origin： Remark：0 Click：
Technical specification DIN 1.4720 heat-resisting steel round bar, flat bar, plate, X7CrTi12 sheet, rod, steelmaking, hot forged, rolled, heat treated, cold worked
TECHNICAL DATA SHEET - DIN X7CrTi12 & W-Nr 1.4720
MATERIAL CATEGORY: heat resisting & 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.
MATERIAL SPECIFICATIONS - DIN 17442,17744 (2002/1985), DIN EN 10302, 10095 (2002/1999)
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): ≤ 0.08
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 10.5 ~ 12.5
Nickel, Ni (％): -
Titanium, Ti (％): 6×C ~ 1.00
Silicon, Si (％): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 10.5 ~ 12.5
Nickel, Ni (％): -
Titanium, Ti (％): 6×C ~ 1.00
MECHANICAL PROPERTIES FINAL HEAT TREATMENT
Hardness ≤HBS: 179
Thermal forming temp / ℃: 1050～750
Heat treatment temp / ℃ | soft annealing: 750～850
Heat treatment temp / ℃ | quenching: -
Thermal forming temp / ℃: 1050～750
Heat treatment temp / ℃ | soft annealing: 750～850
Heat treatment temp / ℃ | quenching: -
Condition: annealed
Tensile strength, σb / MPa: 400～600
Tensile strength, σb / MPa: 400～600
Yield strength, σs ≥ MPa: 210
Elongation, δ5 ≥ (％): 25.0
Elongation, δ5 ≥ (％): 25.0
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Condition: annealed
Creep limit (1000h)/MPa，at below temp / ℃ | 600: 27.5
Creep limit (1000h)/MPa，at below temp / ℃ | 700: 8.5
Creep limit (1000h)/MPa，at below temp / ℃ | 800: 3.7
Creep limit (1000h)/MPa，at below temp / ℃ | 900: 1.8
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: 35
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 700: 9.5
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 800: 4.3
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 900: 1.9
Creep limit (1000h)/MPa，at below temp / ℃ | 700: 8.5
Creep limit (1000h)/MPa，at below temp / ℃ | 800: 3.7
Creep limit (1000h)/MPa，at below temp / ℃ | 900: 1.8
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: 35
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 700: 9.5
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 800: 4.3
Creep rupture strenght (1000h)/MPa，at below temp / ℃ | 900: 1.9
Heat resistance temperature in air / ℃: 800
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.
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.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. Email: sales@ccsteels.com.
PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 10 to 800 mm
Length: random length or based on the customer's special requirement.
Square bar / flat bar: 10 to 800 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T20 ~ 400 X W100 ~ 1500 X L1000 ~ 12000 mm
Sheet steel via cold rolled: T0.5 - 6 X W60 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.4 - 3 X W5 ~ 200 X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Steel strip via cold rolled: T0.4 - 3 X W5 ~ 200 X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
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