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steel round bar 4140/1.7225/42CrMo4

Categories Alloy steel plate/Round bar/Block
Place of Origin: China
Brand Name: Circle Four
Certification: ISO 9001:2008
Model Number: 4140 Round Steel Bar/4140 Steel/4140 Steel Bar
MOQ: 5Ton/Tons
Price: negotiate
Packaging Details: Acc.to your request
Delivery Time: 4~7days
Payment Terms: L/C,T/T
Supply Ability: 5000 Metric Ton/Metric Tons per Month
Website:: www.cf-steel.com.cn
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    steel round bar 4140/1.7225/42CrMo4

    Specifications

    steel round bar 4140/1.7225/42CrMo4:
    1)dia 8-650mm,length 1.6-6m
    2)Tech:Hot rolled or forged
    3)Surface:Black/machined

    Steel round bar 4140/1.7225/42CrMo4 detailed products description:

    1.Chemical Composition (%):

    Grade

    C

    Si

    Mn

    P

    S

    Cr

    Mo

    42CrMo4

    0.38-0.45

    0.17-0.37

    0.40-0.70

    ≤0.035

    ≤0.035

    0.90-1.20

    0.15-0.25

    1.7225

    0.38-0.45

    ≤0.40

    0.60-0.90

    ≤0.025

    ≤0.035

    0.90-1.20

    0.15-0.30

    4140

    0.38-0.43

    0.15-0.35

    0.75-1.00

    ≤0.035

    ≤0.040

    0.80-1.10

    0.15-0.25

    2.Available sizes:

    Round: Dia. 10 – 1200mm

    Flat: Thickness 10 – 120mm, width 305 – 2200mm

    Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.

    3.Properties:

    One of the chromium, molybdenum, manganese low alloy steels noted for toughness, good torsional strength and good fatigue strength

    4.Applications:

    Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.

    5.Heat Treatment:

    Soft annealing: heat to 680-720°C, cool slowly.

    Hardness after annealing: Max. 241 HB

    Hardening: 820 - 850 °C

    Normalizing temperature: 840-880°C

    Tempering: 540-680°C

    6.


    Mechanical Properties in Quenched and Tempered Condition

    Diameter (mm)

    0.2% proof stress (N/mm²)

    Tensile strength (N/mm²)

    Elongation (%)

    Reduction of area (%)

    Notch impact energy (ISO-V) (J)

    Up to 16

    900

    1100-1300

    10

    40

    35

    17–40

    750

    1000-1200

    11

    45

    Quality steel round bar 4140/1.7225/42CrMo4 for sale
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