3S28
2020-02-14 15:28:29 Origin： Remark：0 Click：
4.0%Ni - 1.25%Cr Alloy Steel 3S28 Round bar, Flat bar, Forgings S 28 ESR, Hot Forging, Rolling, Heat treatment, Straightened, Ultrasonic test, Cold worked.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - BS S28 & 3S28
MATERIAL CATEGORY - Aircraft "S" series alloy structural steel
TYPE OF STEEL - Ni-Cr-Mo steel
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.26 ~ 0.34
Silicon, Si (％): 0.10 ~ 0.35
Manganese, Mn (％): 0.40 ~ 0.60
Phosphorus, P (％)≤: 0.045
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): 1.10 ~ 1.40
Silicon, Si (％): 0.10 ~ 0.35
Manganese, Mn (％): 0.40 ~ 0.60
Phosphorus, P (％)≤: 0.045
Sulfur, S (％)≤: 0.030
Chromium, Cr (％): 1.10 ~ 1.40
Nickel, Ni (%): 3.90 ~ 4.30
Molybdenum, Mo (％): 0.20 ~ 0.40
Molybdenum, Mo (％): 0.20 ~ 0.40
Equal to: EN 30B
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: Heat treatment
Tensile strength, σb≥/MPa: 995
Yield strength, σs≥/MPa: 825
Elongation, δ5≥(%): 15.0
Impact strength, AKv ≥/J: -
Annealed hardness HBS: 321 min.
Yield strength, σs≥/MPa: 825
Elongation, δ5≥(%): 15.0
Impact strength, AKv ≥/J: -
Annealed hardness HBS: 321 min.
PRODUCT PROFILE / FORMS
Round bar / Disc (diameter): 5.5mm to 750mm
Square bar / Flat bar: 10mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Disc (diameter): 5.5mm to 750mm
Square bar / Flat bar: 10mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 300mm X W100 - 1000mm X L1000 - 5000mm
Sheet steel via cold rolled: T1.0 - 6mm X W10 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.5 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T1.0 - 6mm X W10 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.5 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
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 shafts, 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 shafts, 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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