20MnCrNi4
2015-11-01 08:15:14 Origin： Remark：0 Click：
A35-565 Specifications Bearing Steel 20MnCrNi4 Round bar, Hollow bar 20MnCrNi4 Stock Available, ESR melted, Hot rolling, Heat treatment
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - NF 20MnCrNi4
MATERIAL TYPE: Bearing steel
MATERIAL STANDARDS: NF A35-565
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.15 ~ 0.35
Silicon, Si (％): 0.15 ~ 0.35
Manganese, Mn (％): 1.05 ~ 1.40
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (%): 0.45 ~ 0.75
Molybdenum, Mo (%): ≤ 0.20
Nickel, Ni (%): 0.20 ~ 0.45
Other (％): Copper ≤ 0.30, Aluminum ≤ 0.050
Other (％): Copper ≤ 0.30, Aluminum ≤ 0.050
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 735
Elongation, A5 ≥ (%): 10
Yield strength, Rp0.2 ≥ MPa: 735
Elongation, A5 ≥ (%): 10
Reduction of area, Z (％) ≥: 45
PRODUCT DESCRIPTION
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 + IFF + VD 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.
AVAILABLE SHAPES
Round bar / Flat bar / Square bar /Tube, /Steel strip, /sheet
Bright - peeled + polishing, centerless grinding
Forged - ring, discs, shaft
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.
Process plant – fasteners.
Mechanical gears, gear shaft, main axis, valve rods.
Mechanical parts - connecting rod, bolt and nut.
Multidiameter shafts.
PRODUCT PROFILE & DIMENSION
Round bar / Wire rod (Diameter): 5.5mm ~ 800mm
Square bar / Flat bar: 8mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 5.5mm ~ 800mm
Square bar / Flat bar: 8mm to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W10 - 1500mm X Lmm
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X Lmm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X Lmm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineer.
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