30Mn5
2014-10-24 09:40:27 Origin： Remark：0 Click：
DIN EN 10083-3 Specifications Hardened and tempered steel 30Mn5 Round bar, Plate, Forgings Hot blooming, Hot forging & rolling, Heat treatment
MATERIAL DATA SHEET - 30Mn5
MATERIAL CATEGORY: hardened and tempered steel
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 - heat treatment / QT
MATERIAL SPECIFICATIONS - DIN EN 10083-3 (2006), DIN 17200 (1987)
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.27 ~ 0.34
Silicon, Si (％): 0.15 ~ 0.40
Manganese, Mn (％): 1.20 ~ 1.50
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): ≤ 0.30
Molybdenum, Mo (％): -
Nickel, Ni (％): -
Silicon, Si (％): 0.15 ~ 0.40
Manganese, Mn (％): 1.20 ~ 1.50
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): ≤ 0.30
Molybdenum, Mo (％): -
Nickel, Ni (％): -
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100～850
Heat treatment temperature /℃| annealing: 650～700
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 820～850water, 830 ~ 860oil
Heat treatment temperature /℃| Tempering : 550～660
Hardness after annealing ≤HBS: 217
Heat treatment temperature /℃| annealing: 650～700
Heat treatment temperature /℃| Normalizing: 850～880
Heat treatment temperature /℃| Quenching: 820～850water, 830 ~ 860oil
Heat treatment temperature /℃| Tempering : 550～660
Hardness after annealing ≤HBS: 217
Steel dimension /mm: ≤ 16
Tensile strength, Rm ≥ MPa: 780 ~ 930
Yield strength, Rp0.2 ≥ MPa: 540
Elongation, A5 ≥ (%): 14.0
Reduction of aea, Z ≥ (%): 45
Impact strength, AKv ≥ J: 41
Tensile strength, Rm ≥ MPa: 780 ~ 930
Yield strength, Rp0.2 ≥ MPa: 540
Elongation, A5 ≥ (%): 14.0
Reduction of aea, Z ≥ (%): 45
Impact strength, AKv ≥ J: 41
Steel dimension /mm: 17 - 40
|σb≥/MPa: 690 ~ 830
|σs≥/MPa: 440
|δ5≥/(%): 15
|σb≥/MPa: 690 ~ 830
|σs≥/MPa: 440
|δ5≥/(%): 15
|ψ≥/(%): 50
|AKV≥/J: 48
|AKV≥/J: 48
Steel dimension /mm: 41 - 100
|σb≥/MPa: 690 ~ 830
|σs≥/MPa: 440
|δ5≥/(%): 15
|ψ≥/(%): 50
|AKV≥/J: 48
|σb≥/MPa: 690 ~ 830
|σs≥/MPa: 440
|δ5≥/(%): 15
|ψ≥/(%): 50
|AKV≥/J: 48
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.
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 1000mm
Plate / Sheet steel / Steel strip: 0.5mm to 1000mm
Width: 8mm to 300mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts, and other different shapes based on OEM.
ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
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.
It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
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.
It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
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