1.7276
2026-03-20 08:12:00 Origin： Remark：0 Click：
DIN SEW 028 (1993), DIN EN 10216-2 (2004) material specification alloy steel 1.7276 round bar, flat bar, shaft 1.7276 plate forged - steelmaking, ESR, hot bloomed, rolled, heat treated
Official test report: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - 1.7276
Material category: high temperature pressure vessel steel
Material standards: DIN SEW 028 (1993), DIN EN 10216-2 (2004)
Typical chemical elements (mass fraction %)
Carbon, C (％): 0.08 ~ 0.12
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.50
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 2.70 ~ 3.00
Molybdenum, Mo (％): 0.20 ~ 0.30
Nickel, Ni (％): -
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.50
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 2.70 ~ 3.00
Molybdenum, Mo (％): 0.20 ~ 0.30
Nickel, Ni (％): -
MECHANICAL PROPERTIES - UNDER ROOM TEMPERATURE
Condition: quenched and tempered
Tensile strength, σb ≥ MPa: 440～540
Yield strength, σs ≥ MPa: 215
Elongation, δ5 ≥ (%): 25.0
Impact strength, AKv ≥ J: 69
Annealed hardness HBS: 130～160
Yield strength, σs ≥ MPa: 215
Elongation, δ5 ≥ (%): 25.0
Impact strength, AKv ≥ J: 69
Annealed hardness HBS: 130～160
HOT WORKING AND HEAT TREATMENT CYCLE
Hot working temperature /℃: 1100～850
Annealing temperature /℃: 680～730
Quenching temperature /℃: 950～1000
Cooling medium: Oil or air quenched
Annealing temperature /℃: 680～730
Quenching temperature /℃: 950～1000
Cooling medium: Oil or air quenched
Tempering temperature /℃: 630～700
PRODUCT PROFILE & DIMENSIONS
Rod / round bar / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Square bar / flat bar: 10 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 350 X W20 ~ 1000 X L1000 ~ 5000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W15 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6 X W15 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.3 ~ 3 X W10 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
PRODUCT DESCRIPTION
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
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 - quenched and tempered.
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 - quenched and tempered.
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.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
Pressure vessel.
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.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft.
Pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, E-mail: sales@ccsteels.com.
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, E-mail: sales@ccsteels.com.
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