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21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar

21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar

21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar
21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar21CrMoV5-11 DIN 1.8070 Forged Alloy Steel Bar
CategoriesHot Forged Steel Bars
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Brandfushun
ModelAISI/SAE 4340 forged bar
Steel grade21CrMoV5-11 DIN 1.8070
ApplicationsHeavy Duty Shafts, Gears, Axles, Spindles, Couplin
Heat treatmentNormalized,Quenching and Tmenpering
Surface conditionBlack or bright surface
StandardASTM A26
Unit PriceUS $ 1700 / metric ton
FOB portSHANGHAI
Terms of PaymentL/C, D/A, D/P, T/T
Update Time2019-08-24
Detail Information

PRODUCT DESCRIPTION

Alloystructural 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 10028-2 (2003), DIN 17755 (1983) 

CHEMICAL COMPOSITION (WEIGHT %)

C ():     0.17  0.25
Si ():     0.30  0.60
Mn():    0.30  0.60
P ()≤:   0.035
S ()≤:   0.035
Cr ():    1.20  1.50
Mo ():   1.00  1.20
Ni ():    ≤ 0.60
V ():     0.25  0.35

MECHANICAL PROPERTIES

Hot working temperature /℃: 1100850
Heat treatment temperature /℃|annealing / normalizing: 650~740
Heat treatment temperature /℃|quenching: 900~950  Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
Tensile strength, (≥)|σb/MPa: 690830
Yield strength, (≥)|σs/MPa: 540
Elongation, (≥)|δ5(%): 16.0
Impact, (≥)|AKV/J: 55     

MECHANICAL PROPERTY UNDER HIGH TEMPERATURE

Yield strength σ0.2≥/MPa|200℃: 510
Yield strength σ0.2≥/MPa|300℃: 481
Yield strength σ0.2≥/MPa|350℃: 461
Yield strength σ0.2≥/MPa|400℃: 431
Yield strength σ0.2≥/MPa|450℃: 402
Yield strength σ0.2≥/MPa|500℃: 73 

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, seamless pipe

PRODUCT PROFILE  

Round bar / Wire rod (Diameter):  0.50mm to 1000mm

Square bar / Flat bar: 3mm to 1000mm

Plate / Sheet steel / Steel strip: 0.1mm to 1500mm

Width: 8mm to 1500mm

Length: random length or based on the customer's special requirement.

Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.

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