21CrMoV5-7 datasheet,21CrMoV5-7 chemical,21CrMoV5-7 heat treatment

21CrMoV5-7
2014-10-21 08:46:04   Origin:   Remark:0 Click:

21CrMoV5-7 Specifications, 21CrMoV5-7 Chemical,Grade 21CrMoV5-7 Mechanical properties from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test & Magnetic powder inspection, Cold working, Peeled or rough turned machining. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
  TECHNICAL DATA SHEET - DIN 21CrMoV5-7 

MATERIAL CATEGORY: High temperature structural 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 10028-2 (2003), DIN 17755 (1983) 
CHEMICAL COMPOSITION (WEIGHT %)
C (%):     0.17 ~ 0.25
Si (%):     ≤ 0.40
Mn (%):   0.40 ~ 0.80
P (%)≤:   0.030
S (%)≤:   0.030
Cr (%):    1.20 ~ 1.50
Mo (%):   0.55 ~ 0.85
Ni (%):    ≤ 0.60
V (%):     0.20 ~ 0.35
Others (%):  Al ≤ 0.030
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot working temperature /℃: 1100~850
Heat treatment temperature /℃|annealing / normalizing: 650~730
Heat treatment temperature /℃|quenching: 890~940 oil or air
Heat treatment temperature /℃|tempering:    680~720
HBW:    205~250
Tensile strength, (≥)|σb/MPa: 700~850
Yield strength, (≥)|σs/MPa: 550
Elongation, (≥)|δ5(%): 16.0
Impact strength,  (≥)|AKv/J: 69 
    
       
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Yield strength σ0.2≥/MPa|200℃:    500
Yield strength σ0.2≥/MPa|300℃:    460
Yield strength σ0.2≥/MPa|350℃:    441
Yield strength σ0.2≥/MPa|400℃:    412
Yield strength σ0.2≥/MPa|450℃:    372
Yield strength σ0.2≥/MPa|500℃:    334
AVAILABLE SHAPES  
Round bar / Flat bar / Square bar / Pipe / Steel strip / Sheet
Bright - peeled + polishing, centerless grinding
Forged - ring, tube, pipe casing, 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. 
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): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Plate / Sheet steel / Steel strip: 0.5mm to 800mm
Width: 8mm to 1000mm
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.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical inquiry, pleased to EMAIL (
sales@ccsteels.com) our resident team of qualified production engineers.
meet further on any technical inquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers. TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
- Email us:
lh.steel@hotmail.com
 
TECHNICAL SALES ASSISTANCEIf you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers.- lh.steel@hotmail.com 

Hot search:21CrMoV5-7

Previous page:W-Nr 1.2718
Last page:1.7709

Share to: