Yihua Stainless Steel
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    • Stainless steel grade control table

    国内外常用不锈钢牌号对照表


    序
    号

    中国

    日本

    美国

    英国

    德国

    法国

    CHINA

    JAPAN

    USA

    UK

    GERMANY

    FRANCE

    NO.

    GB1220

    JIS

    AISIASIM

    BS970 BS1449

    DIN17440 DIN177224

    NFA35-572 NFA35-576-582 NFA35-584

    1

    1Cr18Mn8Ni5N

    SUS202

    202,S20200

    284S16

    X12CrNi77

    Z12CN17.07

    2

    1Cr17Ni7

    SUS301

    301,S30100

    301S21

    X12CrNi188

    Z12CN18.09

    3

    1Cr18Ni9

    SUS302

    302,S30200

    302S25

    X5CrNi189

    Z12CN18.09

    4

    0Cr18Ni9

    SUS304

    304,S30300

    304S15

    X2CrNi189

    Z12CN18.09

    5

    00Cr19Ni10

    SUS304L

    304L,S30403

    304S12

    Z12CN18.09A2

    6

    0Cr19Ni9N

    SUS304N1

    304NS30451

    X2CrNiN1810

    Z2CN18.10N

    7

    00Cr18Ni10N

    SUS304LN

    X5CrNi1911

    Z8CN18.12

    8

    1CrNi12

    SUS305

    305,S30500

    305S19

    9

    0Cr23Ni13

    SUS309S

    309S,S30908


    10

    0Cr25Ni20

    SUS310S

    310S,S31008

    X5CrNiMo1812

    Z6CND17.12

    11

    0Cr17Ni12Mo2

    SUS316

    316,S3160

    316S16

    X2CrNiMo1812

    Z2CND17.12

    12

    00Cr17Ni14Mo2

    SUS316L

    316L,S31603

    316S12

    13

    0Cr17Ni2Mo2N

    SUS316N

    316N,S31651


    14

    00Cr18Ni14Mo2Cu2

    SUS316JIL



    15

    0Cr19Ni13Mo3

    SUS317

    317,S31700

    317S16

    X2CrNiMo1816

    Z2CN19.15

    16

    00Cr19NI13Mo3

    SUS317L

    317L,S31703

    317S12

    X10CrNiTi189

    17

    1Cr18Ni9Ti

    SUS





    尺寸偏差：（单位：mm）执行标准：Q/YH 1-2004 备案号：QB/440605 77 3067-2004

    外径或
    边长

    ≤25

    >25～40

    >40～50

    >50～60

    >60～70

    >70～80

    >80～90

    >90～100

    >100～160

    允许偏差

    ±0.15

    ±0.18

    ±0.20

    ±0.23

    ±0.25

    ±0.30

    ±0.40

    ±0.50

    ±0.55%A



    不锈钢化学成分

    序号

    代号

    化学成分，%

    C
    ≤

    Si
    ≤

    Mn

    P
    ≤

    S
    ≤

    Ni

    Cr

    N
    ≤

    Cu

    1

    N4

    0.17

    1.0

    ≤2.0

    0.035

    0.03

    8.0～11.0

    17.0～19.0

    ——

    ——

    2

    N7

    0.15

    1.0

    5.5～9.5

    0.090

    0.03

    0.7～4.0

    13.8～16.0

    0.20

    1.00～2.20

    3

    N8

    0.15

    1.0

    5.5～10.0

    0.070

    0.03

    2.0～5.0

    12.0～15.5

    0.10

    ——

    4

    N9

    0.15

    1.0

    ≤9.0

    0.060

    0.03

    3.8～8.0

    13.5～18.0

    ——

    1.00～3.50

    注1：供需双方协商可供应表中所列以外的材料。
    注2：本表代号N4指304、N7指201yh、N9指304yh，引用Q/YH 1-2004。



    不锈钢管材的壁厚允许偏差

    壁厚

    允许偏差

    Ⅰ

    Ⅱ

    Ⅲ

    Ⅳ

    Ⅴ

    Ⅵ

    ≥0.4～0.6

    ±0.05

    ±0.08

    ±0.10

    ±0.12

    ±0.12

    ±0.12

    ＞0.6～0.8

    ±0.05

    ±0.08

    ±0.10

    ±0.16

    ±0.20

    ±0.25

    ＞0.8～1.0

    ±0.05

    ±0.10

    ±0.12

    ±0.18

    ±0.22

    ±0.27

    ＞1.0～1.25

    ±0.10

    ±0.12

    ±0.13

    ±0.20

    ±0.28

    ±0.31

    ＞1.25～1.6

    ±0.10

    ±0.13

    ±0.14

    ±0.22

    ±0.30

    ±0.35

    ＞1.6～1.9

    ±0.10

    ±0.14

    ±0.16

    ±0.25

    ±0.32

    ±0.36

    ＞1.9～2.0

    ±0.10

    ±0.14

    ±0.16

    ±0.28

    ±0.35

    ±0.40

    ＞2.0～2.5

    ±0.15

    ±0.16

    ±0.18

    ±0.30

    ±0.40

    ±0.45

    ＞2.5～3.0

    ±0.15

    ±0.18

    ±0.20

    ±0.32

    ±0.42

    ±0.47

    注：壁厚大于3.0mm的壁厚允许偏差由供需双方协商确定。



    不锈钢管材的力学性能

    代号

    力学性质

    拉力试验

    抗拉强度Ob Mpa≥

    屈服强度 Mpa≥

    伸长率 %≥

    奥氏体型

    N4

    520

    205

    25

    N7

    480

    245

    N8

    N9


    注：
    1、钢管的机械性能按GB228标准进行。
    2、不锈钢管长度一般为6米定尺长度，公差为+20mm.

    8K、磨砂板、2B板：
    规格有0.4～1.5、有4X10尺还有1mX2m,其他规格可按客
    户要求订制。

    技术参数：
    材料牌号　0Cr18Ni9201yh202yh304yh
    化学成分引用Q/YH 1-2004标准
    Stainless steel grade control table
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