S98 / 2S98
2025-12-12 09:27:00   Origin：   Remark：0 Click：

Official test certificate - issued by TUV - SGS - BV
Material category - aircraft "S" series alloy structural steel
Type of steel : 0.65Cr - 2.5Ni - 0.5Mo alloy steel
Typical chemical compositions (mass weight %)

Carbon, C (％): 0.36 ~ 0.44
Silicon, Si (％): 0.10 ~ 0.35
Manganese, Mn (％): 0.45 ~ 0.70
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.020
Chromium, Cr (％): 0.50 ~ 0.80
Nickel, Ni (%): 2.30 ~ 2.80
Molybdenum, Mo (％): 0.45 ~ 0.65
Ferrum, Fe (%): balance
Equal to: EN 26
TYPICAL MECHANICAL PROPERTIES
Condition: heat treatment
Tensile strength, σb ≥ MPa: 980
Yield strength, σs ≥ MPa: 785
Elongation, δ5 ≥ (%): 10.0
Impact strength, AKv ≥ J:  -
Hardness HBS: -
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.
PROFILE & AVAILABLE SIZE
Round bar / disc (diameter):  6.0 to 850 mm
Square bar / flat bar: 8 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 ~ 400 X W40 ~ 1200 X L1000 ~ 12000 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 W5 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.

ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.