4S99
2018-11-12 08:05:28 Origin： Remark：0 Click：
Description 4S99 Specifications, Round bars S99 Ex-stock, Plate 4S99 Forgings steelmaking from Electroslag melting, Blooming, Ultrasonic test, hot forging, Rolling, Heat treatment, Straightened, Ultrasonic test, Cold working, Machined. We also possess advanced precision machining equipments for further processing. Please contact with us for detailed enquiry by today!
RAW MATERIAL SPECIFICATIONS - Grade BS 4S99
OFFICIAL TEST CERTIFICATE - issued by TUV - SGS - BV
MATERIAL CATEGORY - Aircraft "S" series alloy structural steel
TYPE OF STEEL- 2.5Ni - 0.65Cr - 0.55Mo alloy steel
MELTING PROCESS - Consumable electrode remelted steel
HS Code For Customs - 7228 4000 / 7228 5000 / 7228 6000
CHEMICAL COMPOSITION (Mass weight - %)
HS Code For Customs - 7228 4000 / 7228 5000 / 7228 6000
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.36 ~ 0.44
Si (％): 0.10 ~ 0.35
Mn (％): 0.45 ~ 0.70
P (％)≤: 0.035
S (％)≤: 0.030
Cr (％): 0.50 ~ 0.80
Si (％): 0.10 ~ 0.35
Mn (％): 0.45 ~ 0.70
P (％)≤: 0.035
S (％)≤: 0.030
Cr (％): 0.50 ~ 0.80
Ni (%): 2.30 ~ 2.80
Mo (％): 0.45 ~ 0.65
Mo (％): 0.45 ~ 0.65
Equal to: EN 26
TYPICAL MECHANICAL PROPERTIES
Condition: Heat treatment
Tensile strength σb≥/MPa: 1210~1470
Yield strength σs≥/MPa: 875
Elongation δ5≥(%): 7.0
Yield strength σs≥/MPa: 875
Elongation δ5≥(%): 7.0
Impact strength, AKv ≥/J: 28
Hardness HBS: -
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, bolts and nuts.
Multidiameter shaft.
Pressure vessel.
PROFILE & AVAILABLE SIZES
Round bar (Diameter): 5.5mm to 550mm
Wire rod (Diameter): 5.0mm to 16mm
Square bar / Flat bar: 3mm to 500mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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, bolts and nuts.
Multidiameter shaft.
Pressure vessel.
PROFILE & AVAILABLE SIZES
Round bar (Diameter): 5.5mm to 550mm
Wire rod (Diameter): 5.0mm to 16mm
Square bar / Flat bar: 3mm to 500mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /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
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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