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                                    Temperature limit table for valve body material

                                    2014-08-13 Number of attention:

                                    Valve body material selection should be based on the nature of the medium, working temperature and flow to determine (whether there are particles, two-phase flow, etc.). Under normal circumstances, users are required to put forward valve main material. Especially for special working conditions or harsh working conditions. In most cases, valve body material is the same as pipeline material or slightly higher than pipeline material.




                                    Various valve body materials are cast iron, ductile iron, carbon steel, stainless steel and so on. Cast iron and ductile iron are suitable for low-pressure valves. Carbon steel has good temperature resistance up to 425 C. It is a general economic material. The following table is the temperature limit of general valve body materials for users'reference.

                                    Name

                                    Material Science


                                    state

                                    China Trademark Registration
                                    American brand
                                    temperature range
                                    Standard number
                                    Brand name
                                    Standard number
                                    Brand name
                                    Gray cast iron
                                    casting
                                    GB/T 12226
                                    HT200
                                    ASTM A126
                                    Gr.B
                                    0~200℃
                                    GB/T 12226
                                    HT250
                                    ASTM A126
                                    Gr.C
                                    Spheroidal graphite cast iron
                                    casting
                                    GB/T 12227
                                    QT400-18
                                    ASTM A536
                                    60-40-18
                                    0~350℃
                                    GB/T 12227
                                    QT450-10
                                    ASTM A536
                                    65-45-12
                                    carbon steel
                                    casting
                                    GB/T 12229
                                    WCB
                                    ASTM A216
                                    WCB
                                    -29~425℃
                                    casting
                                    GB/T 12228
                                    25
                                    ASTM A105
                                    GB/T 700
                                    Q235A
                                    ASTM A283
                                    Gr.C
                                    0~350℃
                                    Stainless steel
                                    casting
                                    GB/T 12230
                                    CF8
                                    ASTM A351
                                    CF8
                                    -254~816℃
                                    GB/T 12230
                                    CF8M
                                    ASTM A351
                                    CF8M
                                    GB/T 12230
                                    CF3
                                    ASTM A351
                                    CF3
                                    -254~425℃
                                    GB/T 12230
                                    CF3M
                                    ASTM A351
                                    CF3M
                                    -254~450℃
                                    ASTM A995
                                    4A
                                    -46~315℃
                                    ASTM A995
                                    6A
                                    -101~315℃
                                    casting
                                    GB/T 1220
                                    0Cr18Ni9
                                    ASTM A182
                                    F304
                                    -254~816℃
                                    GB/T 1220
                                    0Cr17Ni12Mo2
                                    ASTM A182
                                    F316
                                    GB/T 1220
                                    00Cr19Ni10
                                    ASTM A182
                                    F304L
                                    -254~425℃
                                    GB/T 1220
                                    00Cr17Ni14Mo2
                                    ASTM A182
                                    F316L
                                    -254~450℃
                                    GB/T 1220
                                    022Cr22Ni5Mo3N
                                    ASTM A182
                                    S31803
                                    -46~315℃
                                    GB/T 1220
                                    022Cr25Ni7Mo4N
                                    ASTM A276
                                    S32760
                                    -101~315℃
                                    Alloy steel
                                    casting
                                    JB/T 5263
                                    WC6
                                    ASTM A217
                                    WC6
                                    -29~593℃
                                    JB/T 5263
                                    WC9
                                    ASTM A217
                                    WC9
                                    -29~593℃
                                    JB/T 5263
                                    C12A
                                    ASTM A217
                                    C12A
                                    -29~650℃
                                    casting
                                    NB/T 47008
                                    15CrMo
                                    ASTM A182
                                    F11
                                    -29~593℃
                                    NB/T 47008
                                    12Cr2Mo1
                                    ASTM A182
                                    F22
                                    -29~593℃
                                    NB/T 47008
                                    10Cr9Mo1VNb
                                    ASTM A182
                                    F91
                                    -29~650℃
                                    Low temperature steel
                                    casting
                                    JB/T 7248
                                    LCB
                                    ASTM A352
                                    LCB
                                    ≥-46℃
                                    JB/T 7248
                                    LC1
                                    ASTM A352
                                    LC1
                                    ≥-59℃
                                    JB/T 7248
                                    LC2
                                    ASTM A352
                                    LC2
                                    ≥-73℃
                                    JB/T 7248
                                    LC3
                                    ASTM A352
                                    LC3
                                    ≥-101℃
                                    casting
                                    ASTM A350
                                    LF2
                                    ≥-46℃
                                    ASTM A350
                                    LF5
                                    ≥-59℃
                                    ASTM A350
                                    LF9
                                    ≥-73℃
                                    ASTM A350
                                    LF3
                                    ≥-101℃
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