45Cr2 Flat bar - Round bar - Stockist

45Cr2
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45Cr2 datasheet, 45Cr2 Chemical, 45Cr2 properties from steelmaking, ESR, blooming, forging, rolling, heat treatment, straightened, ultrasonic test, cold working, machined.
Official Test Certificate: issued by TUV - SGSBV

TECHNICAL DATA SHEET - DIN 45Cr2
MATERIAL CATEGORY: Flame and high-frequency heating surface hardening steel
PRODUCT DESCRIPTION
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 - QT
MATERIAL SPECIFICATIONS - DIN EN 10083-2/3 (2006), DIN 17212 (1972)
CHEMICAL COMPOSITIONS (mass weight %)     
Carbon, C (%): 0.42 ~ 0.48
Silicon, Si (%): 0.15 ~ 0.40
Manganese, Mn (%): 0.50 ~ 0.80
Phosphorus, P (%) ≤: 0.025
Sulfur, S (%) ≤: 0.035
Chromium, Cr (%): 0.40 ~ 0.60
Molybdenum, Mo (%): -

MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS

Hot working temperature /℃:   1100~850
Heat treatment temperature /℃ | annealing:      650~700
Heat treatment temperature /℃ | normalizing:   840~870
Heat treatment temperature /℃ | quenching:     820~850Water,830~860Oil 
Heat treatment temperature /℃ | tempering:     550~660
Heat treatment temperature /℃ | surface hardening:  820~850
Surface hardness  HBC≤: 55~61 
Size /mm:    ≤ 16
| σb ≥ MPa:   880~1080
| σs ≥ MPa:   630
| δ5 ≥ (%):     12
| ψ ≥ (%):       40
| AKv ≥ J:      35
Size / mm:    16 ~ 40
| σb ≥ MPa:   780~930
| σs ≥ MPa:   510
| δ5 ≥ (%):     14
| ψ ≥ (%):       45
| AKV ≥ J:      42
Size /mm:    40~100
| σb ≥ MPa:   690~830
| σs ≥ MPa:   440
| δ5 ≥ (%):     15
| ψ ≥ (%):       50
|AKv ≥ J:      43
AVAILABLE SHAPES  
Black 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.
Power generation – turbine fasteners – boiler support rods
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, E-mail: 
sales@ccsteels.com.
PRODUCT PROFILE
Round bar / rod (diameter): 5.5 to 800mm
Square bar / flat bar: 8 to 600mm
Length: random length or based on the customer's special requirement.
Heavy / middle plate via hot rolled: T60 - 400 X W50 - 1000 X L1000 - 5000mm
Sheet steel via cold rolled: T0.5 - 6 X W600- 1000 X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3 X W5 - 200 X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.

 

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