SMn420
2016-07-07 11:41:25 Origin： Remark：0 Click：
Specifications JIS G4053 - 2003 of Grade SMn420 ESR melted, Blooming, Hot forging,Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working.
MATERIAL DATA SHEET - JIS SMn420
MATERIAL CATEGORY: Japanese Standard grade alloy structural steel
MATERIAL SPECIFICATIONS: JIS G4053 -2003
MATERIAL CATEGORY: Japanese Standard grade alloy structural steel
MATERIAL SPECIFICATIONS: JIS G4053 -2003
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.17 ~ 0.23
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (%): 0.15 ~ 0.35
Manganese, Mn (％): 1.20 ~ 1.50
Manganese, Mn (％): 1.20 ~ 1.50
Phosphorus, P (％)≤: 0.030
Sulfur, S (％)≤: 0.030
Chromium, Cr (%): ≤ 0.35
Nickel, Ni (%): ≤ 0.25
Molybdenum, Mo (%): -
Copper, Cu (%): ≤ 0.30
MECHANICAL PROPERTIES, HEAT TREATMENT
Quenched 1. 850~900℃, oil cooled
2. 780~830℃, oil cooled
Tempered 150~200, air cooled
Mechanical property ≥ σb/MPa: 690
Mechanical property ≥ σs/MPa: -
Mechanical property ≥ δ5 (%): 14
Mechanical property ≥ σs/MPa: -
Mechanical property ≥ δ5 (%): 14
Mechanical property ≥ ψ (％): 30
Mechanical property ≥ Akv J/cm2): 49
Hardness / COND QT.HB: 201~311
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.
PRODUCT PROFILE & DIMENSIONS
Round bar & Disc (Diameter): 5.5mm 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 ~ 200mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W10 - 1500mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM requirement.
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 & DIMENSIONS
Round bar & Disc (Diameter): 5.5mm 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 ~ 200mm X Coil
Heavy/middle plate via hot rolled: T4 - 200mm X W10 - 1500mm 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, Email: sales@ccsteels.com.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com.
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