25NCD4
2015-08-24 21:29:15 Origin： Remark：0 Click：
Technical specifications Structure Steel 25NCD4 Round bar, Flat bar, Plate ESR melted, 25NCD4 Hot forging / rolling, Heat treatment
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - NF 25NCD4
MATERIAL CATEGORY: French inactive standard structure steel
TYPICAL CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.22 ~ 0.28
Silicon, Si (％): 0.10 ~ 0.40
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.50 ~ 0.90
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 0.40 ~ 0.70
Nickel, Ni (％): 1.00 ~ 1.30
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.035
Chromium, Cr (％): 0.40 ~ 0.70
Nickel, Ni (％): 1.00 ~ 1.30
Molybdenum, Mo (%): 0.10 ~ 0.20
Ferrum, Fe (％): -
MECHANICAL PROPERTIES
Tensile strength, Rm / MPa ≥: 1080~1320
Yield strength, Rp0.2 / MPa ≥: 785
Elongation, A5 (％) ≥: 8
Yield strength, Rp0.2 / MPa ≥: 785
Elongation, A5 (％) ≥: 8
Delivery hardness /HBS|≥: -
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, or bright annealing specially.
Final heat treatment - Quenched and tempered.
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 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 (sales@ccsteels.com) our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.50mm ~ 800mm
Square bar / Flat bar: 6mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 5.50mm ~ 800mm
Square bar / Flat bar: 6mm to 800mm
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 L1000-12000mm
Sheet steel via cold rolled: T0.5 - 6mm X W60 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
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