Low Alloy Steel typically used in wellheads, blow out preventers and other applications needing good hardenability to maintain yield strength through thick cross-sections. It can be used in limited sour environments when  ordered to  meet NACE MR0175 requirements for hardness max of 22 HRC.

     

    8630 Mod Specification/Condition

    • ASTM A322/ASTM A788 / NACE MR0175

    8630 Mod applications

    • wellhead applications in oil patch, such as connectors, hangars and block valves

    8630 Mod technical data

    • UTS (KSI): 105 Min
    • Yield 0.2% Offset (KSI): 80 Min
    • EL (% Min): 20
    • RA (% Min): 25
    • Hardness (HRC): 22
    • Charpy Impact Min. ft-lbs: 40@-20oF

    8630 Mod dimensions

    • 9.0-19.5 in

    8630 Mod Chemical composition (Wt %)

     

    Carbon
    (C)
    Manganese
    (Mn)
    Phosphorus
    (P)
    Sulfur
    (S)
    Silicon
    (Si)
    Nickel
    (Ni)
    Cobalt
    (Co)
    0.28-0.33 Max 0.7-1.0 Max 0.040 Max 0.040 Max 0.20-0.35 Max 0.40-1.10

     

    Chromium
    (Cr)
    Manganese
    (Mo)
    Niobium + Tantalum
    (Nb (Cb) + Ta)
    Titanium
    (Ti)
    Copper
    (Cu)
    Aluminum
    (Al)
    Iron (Fe) & Others
    0.40-1.75 0.15-0.50 Fe– Balance

     

    Contact us
    cancel
    cancel

    My account settings

    Please have a little patience. Your request is being processed.