1.7733
2014-10-11 10:25:57 Origin： Remark：0 Click：
EN 1.7733 is a Chromium-Molybdenum-Vanadium Base Steels, 1.7733 Round bar, flat bar, plate and forgings ESR & VAR technique, Heat treatment
MATERIAL DATA SHEET - W-Nr 1.7733
MATERIAL CATEGORY - High temperature structural steel
PRODUCT DESCRIPTION
The alloy is usually produced by EAF + VD + LF followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition.
Final heat treatment - heat treatment / Quenched and tempered.
MATERIAL SPECIFICATIONS - DIN EN 10028-2 (2003), DIN 17755 (1983)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.20 ~ 0.28
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 1.20 ~ 1.50
Molybdenum, Mo (％): 0.50 ~ 0.60
Nickel, Ni (％): ≤ 0.60
Vanadium, V (％): 0.15 ~ 0.25
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 1.20 ~ 1.50
Molybdenum, Mo (％): 0.50 ~ 0.60
Nickel, Ni (％): ≤ 0.60
Vanadium, V (％): 0.15 ~ 0.25
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃|annealing / normalizing : 650~740
Heat treatment temperature /℃|quenching: 900~950 Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
Tensile strength, (≥) Rm / MPa: 690～830
Yield strength, (≥) Rp0.2 / MPa: 540
Elongation, (≥) A5 (%): 17.0
Reduction of area, (≥) AKV / J: 55
Heat treatment temperature /℃|annealing / normalizing : 650~740
Heat treatment temperature /℃|quenching: 900~950 Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
Tensile strength, (≥) Rm / MPa: 690～830
Yield strength, (≥) Rp0.2 / MPa: 540
Elongation, (≥) A5 (%): 17.0
Reduction of area, (≥) AKV / J: 55
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Yield strength σ0.2≥/MPa|200℃: 490
Yield strength σ0.2≥/MPa|300℃: 451
Yield strength σ0.2≥/MPa|350℃: -
Yield strength σ0.2≥/MPa|400℃: 402
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: 34
Yield strength σ0.2≥/MPa|300℃: 451
Yield strength σ0.2≥/MPa|350℃: -
Yield strength σ0.2≥/MPa|400℃: 402
Yield strength σ0.2≥/MPa|450℃: -
Yield strength σ0.2≥/MPa|500℃: 34
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel.
PROFILE AND DIMENSIONS
Round bar / wire rod (Diameter): 5.5mm to 600mm
Square bar / flat bar: 10mm to 650mm
Plate / Sheet steel / Steel strip: 0.5mm to 300mm
Width: 8mm to 1000mm
Forged steel shape: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to email or call our resident team of qualified production engineers. E-mail: sales@ccsteels.com
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