S155
2015-07-16 16:50:34 Origin： Remark：0 Click：
Aircraft "S" series Alloy Structural Steel S155 Round bar, Inventory S155 Forging Bar, Electroslag melting, Hot forging / rolling, Heat treatment
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - BS S155
MATERIAL CATEGORY - Aircraft "S" series alloy structural steel
TYPE OF STEEL: Cr-Ni-Mo-Si-V Steel
MELTING PROCESS - EAF / AOD / + ESR / VAR
H S CODE For Customs - 7228 4000 / 7228 5000 / 7228 6000
H S CODE For Customs - 7228 4000 / 7228 5000 / 7228 6000
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.39 ~ 0.44
Silicon, Si (％): 1.50 ~ 1.80
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 0.70 ~ 0.95
Silicon, Si (％): 1.50 ~ 1.80
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.030
Chromium, Cr (％): 0.70 ~ 0.95
Nickel, Ni (%): 1.65 ~ 2.00
Molybdenum, Mo (％): 0.30 ~ 0.45
Molybdenum, Mo (％): 0.30 ~ 0.45
Other (%): Vanadium 0.05 ~ 0.10, P + S ≤ 0.025
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: Heat treatment
Tensile strength, Rm ≥ MPa: 1100 ~ 1380
Yield strength, Rp0.2 ≥ MPa: 985
Elongation, A5 ≥ (%): 9.0
Yield strength, Rp0.2 ≥ MPa: 985
Elongation, A5 ≥ (%): 9.0
Impact strength, AKv ≥/J: -
Hardness HBS: -
Hardness HBS: -
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.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. 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, or bright annealing specially.
Final heat treatment - quenched and tempered.
The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose. 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, or bright annealing specially.
Final heat treatment - quenched and tempered.
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.5 ~ 800mm
Square bar / Flat bar: 10 ~ 800mm
Length: Fixed length or random length or based on the customer's special requirements.
Round bar / Disc (diameter): 5.5 ~ 800mm
Square bar / Flat bar: 10 ~ 800mm
Length: Fixed length or random length or based on the customer's special requirements.
Heavy/middle plate via hot rolled: T60 ~ 300mm X W100 - 1000mm X L1000 ~ 5000mm
Sheet steel via cold rolled: T0.5 ~ 6mm X W200 ~ 1000mm X L1000 ~ 2000mm
Steel strip via cold rolled: T0.1 ~ 3mm X W5 ~ 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6mm X W200 ~ 1000mm X L1000 ~ 2000mm
Steel strip via cold rolled: T0.1 ~ 3mm X W5 ~ 200mm X L (or in coil form)
Forging piece: stepped shafts, 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 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
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com.
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