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AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439

    Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers
     
    Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers
    • Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers
    • Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers
    • Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers
    • Buy cheap AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 from wholesalers

    AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439

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    Brand Name : Gnee
    Model Number : AISI 4340 1.6511 36CrNiMo4 SNCM439
    Certification : SGS
    Price : $0.60 / Kilogram
    Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 1000 Ton/Tons per Month
    • Product Details
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    AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439

    AISI 4340 1.6511 36CrNiMo4 SNCM439 Round Steel Bar Round Bar Round Bar Rod

    AISI 4340 steel (UNS G43400) is an ultra-high strength medium carbon low alloy steel, which combines deep hardenability, high ductility, toughness and strength, and has high fatigue resistance and creep resistance. 4340 steel & equivalents: 36CrNiMo4, 1.6511, EN24, SNCM439 etc.


    Standard
    JIS ASTM GB EN AISI
    Size
    Diameter:16-250mm
    Length:4000-15000mm
    Technique
    Hot Rolled / Cold Rolled / Forged
    Package
    Export Standard Package,bundled or be required
    Service
    Cutting Service , Customized Fabrication Service

    Supply Form & Size & Tolerance

    Supply FormSize(mm)ProcessTolerance



    Round
    Φ6-Φ100Cold DrawnBright/BlackBest H11

    Φ16-Φ350

    Hot Rolled
    Black-0/+1mm
    Peeled/groundBest H11

    Φ90-Φ1000

    Hot Forged
    Black-0/+5mm
    Rough Turned-0/+3mm

    Flat/Square/Block
    Thickness :120-800
    Hot Forged
    Black-0/+8mm
    Width:120-1500Rough Machined-0/+3mm

    Remark:Tolerance can be customized as per requests

    Chemical Composition

    StandardGradeCSiMnPSCrNiMo
    ASTM A2943400.38-0.430.15-0.350.6-0.8≤ 0.035≤ 0.040.7-0.91.65-2.00.2-0.3

    EN10250
    36CrNiMo4
    0.32-0.4

    ≤ 0.4

    0.5-0.8

    ≤ 0.035

    ≤ 0.035

    0.9-1.2

    0.90-1.2

    0.15-0.3
    1.6511

    BS 970
    EN24
    0.36-0.44

    0.1-0.4

    0.45-0.7

    ≤ 0.035

    ≤ 0.04

    1.0-1.4

    1.3-1.7

    0.2-0.35
    817M40
    JIS G4103SNCM4390.36-0.430.15-0.350.6-0.9≤ 0.03≤ 0.030.6-1.01.6-2.00.15-0.3
    GB 307740CrNiMoA0.37-0.440.17-0.370.5-0.8≤ 0.025≤ 0.0250.6-0.91.25-1.650.15-0.25

    3.Physical Property

    Density g/cm37.85
    Melting point °C1427
    Poisson's ratio0.27-0.30
    Machinability (AISI 1212 as 100% machinability)50%
    Thermal expansion co-efficient µm/m°C12.5
    Thermal conductivity W/(m.K)44.5
    Modulus of elasticity 10^3 N/mm^2210
    Electric resistivity Ohm.mm2 /m0.19
    Specific heat capacity J/(kg.K)460
    Modulus of elasticity 10^3 N/mm2100 ℃200 ℃300 ℃400 ℃500 ℃
    205195185175165
    Thermal expansion 10^6 m/(m.K)100 ℃200 ℃300 ℃400 ℃500 ℃
    11.112.112.913.513.9

    Mechanical Property

    Mechanical ConditionTUVWXYZ
    Ruling Section (mm)1501006330303030
    Tensile Strength Mpa850-1000930-10801000-11501080-12301150-13001230-1380>1550
    Yield Strength,Mpa≥665≥740≥835≥925≥1005≥1080≥1125
    Elongation %≥13≥12≥12≥11≥10≥10≥5
    Izod Impact J≥54≥47≥47≥41≥34≥24≥10
    Charpy Impact J≥50≥42≥42≥35≥28≥20≥9
    Brinell Hardness HB248-302269-331293-352311-375341-401363-429>444

    High Temperature Strength

    For quenched and tempered heavy forgings

    Diameter mm
    Yield strength MPa
    20 ℃100 ℃200 ℃250 ℃300 ℃350℃400℃
    ≤250590549510481441412371
    250-500540505471451412383353
    500-750490466441422392363343

    AISI 4340 1.6511 36CrNiMo4 SNCM439 Round Steel Bar Round Bar Round Bar RodAISI 4340 1.6511 36CrNiMo4 SNCM439 Round Steel Bar Round Bar Round Bar Rod
    FAQ
    1. How fast you can make delivery?
    Stock sizes 3-5 days, 10-20 workings for customize sizes.

    2. How to contact us?
    Trade manager online, chat with me directly.
    Send an inquiry to us. Send email to me, or call me directly.
    3. How can we guarantee quality?
    Always a pre-production sample before mass production; Always final Inspection before shipment;

    4.What can you buy from us?
    Hot Rolled Steel Sheet,Hot Rolled Steel Coil,Seamless Steel Tube,Cold Rolled Steel Coil,Galvanized Steel Coil,Round Bar

    Quality AISI 4340 1.6511 Alloy Steel Round Bar 36CrNiMo4 SNCM439 for sale
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