20CD12
2015-08-21 21:41:10 Origin： Remark：0 Click：
Description 20CD12 Ex-stock, Suppliers 20CD12 Round bar, Inventory 20CD12 Properties from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treat, Straightening, Ultrasonic test, Cold working or Machined. We also possess the advanced precision machining equipments for further processing, just let us know what you inquire.
Official Test Certificate: issued by TUV - SGS - BV
MATERIAL TECHNICAL DATASHEET - Grade NF 20CD12
MATERIAL CATEGORY: French inactive standard structure steel
CHEMICAL COMPOSITION (Mass weight - %)
C (％): 0.15 ~ 0.25
Si (％): ≤ 0.80
Si (％): ≤ 0.80
Mn (％): ≤ 0.80
P (％)≤: 0.030
S (％)≤: 0.025
Cr (％): 2.75 ~ 3.30
Ni (％): -
P (％)≤: 0.030
S (％)≤: 0.025
Cr (％): 2.75 ~ 3.30
Ni (％): -
Mo (%): 0.30 ~ 0.50
Others (％) : -
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength / σb/MPa|≥: 980~1180
Yield strength / σs/MPa|≥: 785
Elongation / 5(％)|≥: 11.0
Yield strength / σs/MPa|≥: 785
Elongation / 5(％)|≥: 11.0
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 - heat treatment / QT
AVAILABLE SHAPES
Round bar / flat bar / hollow bar / strip / forgings
Bright - peeled + polishing, centerless grinding
Forged - ring, discs, shaft
PROFILE AND DIMENSION
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm 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 W6 - 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 with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 6mm X W6 - 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 with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
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, seamless pipe
TECHNICAL SALES ASSISTANCE
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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