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High Strength Steel Stabilizer Forging Material AISI4145 AISI 4330V Forging

Categories Stabilizer Forging
Brand Name: TIPTOP
Model Number: Steel Forging
Certification: Quality Inspection
Place of Origin: China
MOQ: 1pc
Price: Negotiation
Payment Terms: T/T, L/C, D/A, D/P
Supply Ability: 500 tons per month
Delivery Time: 15-90 days
Packaging Details: seaworthy steel rack
Material: 4330V, 4145H
Standard: API 7-1
Application: Downhole Drilling
Condition: Q&T+Fine Machined
Key Word: 4330V Bar, Hollow Bar
Size: 7 1/4''~17 1/2''
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    High Strength Steel Stabilizer Forging Material AISI4145 AISI 4330V Forging

    Cold Weather Service NS-1 High Strength Material AISI4145, AISI 4330V Forging


    Dual Chemistry Specification

    It allows the use of either AISI 4145 or AISI 4330V as long as all of the requirements are met for the given option. For example, to allow use of AISI 4145, all of the given 4145 requirements need to be met.


    Chemical Analysis

    The chemical composition shall be determined in accordance with ASTM A751 and shall meet the requirements in weight percent for the specific grade as listed in the table below.

    Grade CSiMnPSCrMoNi
    (1) (2)
    VOther
    4330VMin.0.280.150.60--0.750.351.650.05-
    Max.0.340.351.000.0250.0151.100.502.300.100.40
    4145Min.0.43 0.75  0.800.15   
    Max.0.480.351.000.0300.0251.100.250.25  
    4145 ModMin.0.38 0.60  0.750.15   
    Max.0.490.401.250.0300.0251.500.750.25  

    Mechanical Properties

    The surface hardness shall be as listed below as measured by ASTM E18 or E10. The mechanical properties shall be referenced from the relevant Engineering drawing determined at the approximate mid-radial location in accordance with ASTM A370 and shall be within the following ranges.

    Minimum yield as referenced from the Engineering Drawing 0.2% Proof Stress ksi Mid Radial Mechanical Properties 
    0.2% Proof Stress,
    ksi (N/mm2)
    Tensile Strength,
    ksi (N/mm2)
    Elongation
    %
    Reduction of Area, %Hardness,
    HRC (BHN)
    140Min.140 (966)165 (1172)154536 (336)
    Max.-190 (1310)--42 (390)
    130Min.130 (897)160 (1103)154534 (321)
    Max.-180 (1241)--40 (375)
    120Min.120 (828)150 (1034)154532 (302)
    Max.-170 (1172)--38 (352)
    110Min.110 (759)140 (966)154530 (285)
    Max.-160 (1103)--36 (331)

    The absorbed impact energy shall be determined at the temperatures indicated using the Charpy V-notch method in accordance with ASTM E23. For cold weather service Charpy’s shall meet the requirements when tested at -40°C(-40°F)

    Temp Charpy Ave 3No Single Value Below# specimens below min Ave
    Ambient (20 Deg C)Min40 ft. lbs (54J)36 ft. lbs (47J)1 only
    -40 Deg CMin40 ft. lbs (54J)36 ft. lbs (47J)

    Through Thickness Hardness Testing in accordance with NS-1

    Prior to purchase, bars will be subjected to a through thickness 12 point Hardness test with no values having a hardness differential greater than 6RC points. This is to be done in accordance with the requirements of NS-1 specification for Drill Stem Substitutes.


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