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  • 创 718

    GEN 718 Overview

    GEN 718用于TIG焊接合金718、706和X-750。它主要用于焊接高强度飞机部件以及涉及低温的液体火箭部件。这种合金可以时效硬化至更高的强度。

    Welding Wire Reels

    AWS 化学成分(典型)

    %C %Cr %Ni %Mo %Ti %Fe %Mn %B
    0.08 max.
    0.045
    17.0 – 21.0
    18.5
    50.0 – 55.0
    53.8
    2.80 – 3.30
    2.90
    0.65 – 1.15
    0.95
    雷姆。
    17.7
    0.35 max.
    0.05
    0.006 max.
    0.003
    %Si %P %S %Cu %Al %Nb+Ta Total
    其他
    0.35 max.
    0.06
    0.015 max.
    0.007
    0.015 max.
    0.001
    0.30 max.
    0.10
    0.20 – 0.80
    0.55
    4.75 – 5.50
    5.18
    0.50 max

    典型的焊接金属机械性能

    抗拉强度 125,000 psi 862 MPa
    屈服强度 85,000 psi 586 MPa
    伸长 28%

    Typical Welding Parameters

    过程 Diameter Voltage Amperage Gas/Flux
    氩弧焊 (GTAW) 1/16” (1.6 mm) 14 – 18 90 – 130 100% Ar
    3/32” (2.4 mm) 15 – 20 120 – 180 100% Ar
    1/8” (3.2 mm) 15 – 20 150 – 220 100% Ar
    米格 (GMAW) .035” (0.9 mm) 26 – 30 150 – 200 75% Ar – 25% He
    .045” (1.1 mm) 28 – 32 180 – 230 75% Ar – 25% He
    Sub Arc (SAW) .093” (2.4 mm) 28 – 30 275 – 350
    .125” (3.2 mm) 29 – 32 350 – 450

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