38MnSi4
2014-10-24 10:31:19 Origin： Remark：0 Click：
DIN EN 10083-2 Specifications Round bar, Flat bar 38MnSi4 Stock, Plate, ESR & VAR technique, Hot blooming, Hot forging, Hot rolling, Heat treatment
MATERIAL DATA SHEET - DIN 38MnSi4
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.
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.
Final heat treatment - Quenched and tempered.
MATERIAL SPECIFICATIONS - DIN EN 10083-2 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.34 ~ 0.42
Silicon, Si (％): 0.70 ~ 0.90
Manganese, Mn (％): 0.90 ~ 1.20
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): -
Molybdenum, Mo (％): -
Nickel, Ni (％): -
Silicon, Si (％): 0.70 ~ 0.90
Manganese, Mn (％): 0.90 ~ 1.20
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): -
Molybdenum, Mo (％): -
Nickel, Ni (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Hot working temperature /℃: 1050～850
Heat treatment temperature /℃| annealing: 680～720
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 820～850 oil
Heat treatment temperature /℃| Tempering : 550～660
Hardness after annealing ≤HBS: 217
Heat treatment temperature /℃| annealing: 680～720
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 820～850 oil
Heat treatment temperature /℃| Tempering : 550～660
Hardness after annealing ≤HBS: 217
Steel dimension /mm: ≤16
Tensile strength, RM ≥ MPa: 930 ~ 1130
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 11
Reduction of area, Z ≥ (%): 35
Impact strrength, AKv ≥ J: 21
Tensile strength, RM ≥ MPa: 930 ~ 1130
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 11
Reduction of area, Z ≥ (%): 35
Impact strrength, AKv ≥ J: 21
Steel dimension /mm: 17 - 40
|σb≥/MPa: 830 ~ 1030
|σs≥/MPa: 635
|δ5≥/(%): 12.0
|σb≥/MPa: 830 ~ 1030
|σs≥/MPa: 635
|δ5≥/(%): 12.0
|ψ≥/(%): 40.0
|AKV≥/J: 27
Steel dimension /mm: 41 - 100
|σb≥/MPa: 740 ~ 880
|σs≥/MPa: 560
|δ5≥/(%): 13.0
|ψ≥/(%): 45.0
|AKV≥/J: 34
|σb≥/MPa: 740 ~ 880
|σs≥/MPa: 560
|δ5≥/(%): 13.0
|ψ≥/(%): 45.0
|AKV≥/J: 34
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.
Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shaft, Pressure vessel.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers, Email: sales@ccsteels.com
PRODUCT PROFILE & DIMENSIONS
Round bar / disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 600mm
Plate / Sheet steel / Steel strip: 0.5mm to 1000mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shaft, and other different shapes based on OEM.
Pipes / Tubings: OD30 - 1200 mm, with wall thickness ranging from 15 to 350 mm.
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