Welding Handbook Quick View

SAW

PF-200S / US-90B91

Flux and wire combination for 9%Cr-1%Mo-V-Nb steel
Features:
  • Applied for ASTM A387 Gr.91 and equivalents
  • Excellent creep rupture strength
  • Classification:AWS A5.23 F9PZ-EB91-B91
    Type of flux:Bonded
    Redrying of flux:200~300℃x1h
    Polarity:AC
    Welding Positions: Canvas is Not Supported.

    Packaging data

    Flux
    Mesh
    Can
    PF-200S
    10x48
    20kg
    Volume mm
    240W, 350H, 240L
    Wire
    φ mmCoil
    US-90B91
    2.4
    3.2
    25kg
    25kg
    Volume mm
    430W, 90H, 430L

    Composition (wire mass%)


    Typical
    Guarantya
    C
    0.11
    0.07~0.13
    Si
    0.29
    0.50
    Mn0.51
    1.00
    P0.005
    0.015
    S
    0.004
    0.015
    Cu
    <0.01
    0.10
    Ni
    0.14
    1.00
    Cr
    8.95
    8.5~10.5
    Mo
    1.00
    0.85~1.15
    V
    0.19
    0.15~0.25
    Al
    <0.002
    0.04
    Nb
    0.06
    0.02~0.10
    N0.04
    0.03~0.07
    Mn+Ni0.65
    1.40
    Co0.39
    -
    Note: aSingle values are maximium.

    Composition (weld metal mass %)


    Typical
    Guarantya
    C
    0.09
    0.08~0.13
    Si
    0.25
    0.80
    Mn0.66
    1.20
    P0.005
    0.010
    S0.005
    0.010
    Cu0.01
    0.25
    Ni0.12
    0.80
    Cr9.018.0~10.5
    Mo1.01
    0.85~1.20
    V0.19
    0.15~0.25
    Al<0.01
    0.04
    Nb0.05
    0.02~0.10
    N0.04
    0.02~0.07
    Mn+Ni0.78
    1.40
    Co0.36
    -
    Note: aSingle values are maximium.

    All-weld mechanical properties


    Typical
    Guaranty
    0.2%YS (MPa)
    600538min.
    TS (MPa)
    730621~758
    El on 4d (%)2317min.
    PWHT (℃xh)760x2
    760±15x2

    Page Top

    Products