SCr430
2025-02-24 15:38:00 Origin： Remark：0 Click：
JIS G4053 Technical specifications SCr430 Round bar, Flat bar, Plate, ESR ingot Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment
TECHNICAL DATA SHEET - JIS SCr430
MATERIAL CATEGORY: Japanese Standard grade alloy structural steel
MATERIAL SPECIFICATIONS: Cr -Mo Steel, JIS G4053 -2003
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.28 ~ 0.34
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.28 ~ 0.34
Silicon, Si (%): 0.15 ~ 0.35
Manganese, Mn (％): 0.60 ~ 0.90
Manganese, Mn (％): 0.60 ~ 0.90
Phosphorus, P (％) ≤: 0.030
Sulfur, S (％) ≤: 0.030
Chromium, Cr (%): 0.90 ~ 1.20
Nickel, Ni (%): ≤ 0.25
Molybdenum, Mo (%): -
Copper, Cu (%): ≤ 0.30
HEAT TREATMENT & MECHANICAL PROPERTIES
Quenched 830 ~ 880℃, oil cooled
Tempered 520 ~ 620, rapid cooled
Mechanical property ≥ σb / MPa: 780
Mechanical property ≥ σs / MPa: 635
Mechanical property ≥ σs / MPa: 635
Mechanical property ≥ δ5 (%): 18.0
Mechanical property ≥ ψ (％): 55.0
Mechanical property ≥ Akv J/cm2): 88
Hardness / COND QT.HB: 229 ~ 293
MELTING PROCESS AND APPLICATIONS
The steels shall be manufactured by melting process EF + ESR, EAF+ LF + VD, EAF+ LF + VD + ESR, IFF + ESR Melted. VIM + ESR can be handled by agreement.
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 rods.
The steels shall be manufactured by melting process EF + ESR, EAF+ LF + VD, EAF+ LF + VD + ESR, IFF + ESR Melted. VIM + ESR can be handled by agreement.
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 rods.
PRODUCT PROFILE
Round bar (diameter): 5.50mm to 800mm
Square bar / flat bar (Width X Thickness): 3mm to 800mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
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