16CrMo9-3
2026-03-21 14:22:00 Origin： Remark：0 Click：
DIN 16CrMo9-3 / 1.7281 is a Chromium-Molybdenum base pressure vessel steel, available in forms of round bar, flat bar, plate, and forgings
Official test report: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - DIN 16CrMo9-3 & 1.7281
Material category: 2.25Cr - 0.35Mo base alloy steel
Technical standards: DIN SEW 028 (1993), DIN EN 10216-2 (2004)
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.12 ~ 0.20
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.50
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 2.00 ~ 2.50
Molybdenum, Mo (％): 0.30 ~ 0.40
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 0.30 ~ 0.50
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.035
Chromium, Cr (％): 2.00 ~ 2.50
Molybdenum, Mo (％): 0.30 ~ 0.40
MECHANICAL PROPERTIES - UNDER ROOM TEMPERATURE
Condition: 920 ~ 970 ℃ quenched and 620 ~ 650 ℃ tempered
Tensile strength, Rm ≥ MPa: 540～640
Yield strength, Rp0.2 ≥ MPa: 345
Elongation, A5 ≥ (%): 20
Impact strength, AKv ≥ J: 55
Annealed hardness HBS: 160～190
Yield strength, Rp0.2 ≥ MPa: 345
Elongation, A5 ≥ (%): 20
Impact strength, AKv ≥ J: 55
Annealed hardness HBS: 160～190
HOT WORKING AND HEAT TREATMENT
Hot working temperature /℃: 1100～850
Annealing temperature /℃: 680～730
Quenching temperature /℃: 920～970
Cooling medium: oil or air quenched
Annealing temperature /℃: 680～730
Quenching temperature /℃: 920～970
Cooling medium: oil or air quenched
Tempering temperature /℃: 620～650
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, Pressure vessel.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft
PROFILES & DIMENSIONS
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners, Pressure vessel.
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft
PROFILES & DIMENSIONS
Rod / round bar / disc (Diameter): 6.0 to 900 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 ~ 200 X W15 ~ 1500 X L1000 ~ 6000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W10 ~ 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 W10 ~ 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.
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
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