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X2CrNiMoCuN25-6-3

X2CrNiMoCuN25-6-3
牌号 X2CrNiMoCuN25-6-3
1.4507
对应标准 NF EN 10028-7-2000
压力容器用不锈钢扁平产品
Flat products made of steels for pressure purposes Part 7: Stainless steels
归类 双相不锈钢
X2CrNiMoCuN25-6-3 化学成分成分含量(%)
成分 C Si Mn P S Cr Ni Cu Mo N
最小值 - - - - - 24 5.5 1 2.7 0.15
最大值 0.03 0.7 2 0.035 0.015 26 7.5 2.5 4 0.3
◎ 未经买方同意,不得随意向钢中添加表中未列的成分,冶炼精加工除外.采取一切必要措施以防在废钢和生产原料中带入这些成分,因为其会削弱钢的机械属性,降低钢的适用性.
碳当量计算
X2CrNiMoCuN25-6-3 机械属性
条件 热处理或状态
抗拉强度
σb
Mpa
屈服强度点
σs
Mpa
断后伸长率或延伸率
δ
%
冲击吸收能量
KV2
J
C:T ≤ 6 +AT 690~940 T<300 mm:
(l: ≥495)
T ≥ 300 mm:
(t: ≥510)
T < 3mm: ≥20
T ≥ 3mm: ≥ 20
②③
20℃:
(l: ≥100;t: ≥60)
-40℃:
(t: ≥40)
H:T ≤ 12 +AT 690~940 T<300 mm:
(l: ≥475)
T ≥ 300 mm:
(t: ≥490)
T < 3mm: ≥20
T ≥ 3mm: ≥ 20
②③
20℃:
(l: ≥100;t: ≥60)
-40℃:
(t: ≥40)
P:T ≤ 75 +AT 690~890 T<300 mm:
(l: ≥475)
T ≥ 300 mm:
(t: ≥490)
T < 3mm: ≥25
T ≥ 3mm: ≥ 25
②③
20℃:
(l: ≥100;t: ≥60)
-40℃:
(t: ≥40)
◎C- 冷轧带钢; H- 热轧带钢; P- 热轧中厚板;T- 厚度;t- 横向;l-纵向.
◎+A=软化退火;+AT=固溶退火;+QT=淬火及回火;+RA=再结晶退火.
*抗晶间腐蚀根据EN ISO 3651-2进行测试.在交货条件下:有;在致敏状态下:有.
① 对于连续热轧产品,可在询价和订购时商定Rp0.2(即表中σs)的最小值提高20MPa.
② 如果在轧制width<300mm> ③ T<3mm:该值适用于标距为80mm、width为20mm的试件,也可以使用标距为50mm、width为12.5mm的试件.T ≥3mm:该值适用于标距为5.65√S的试件.

  • 高温下的最小屈服强度强度

    Material designationHeat treatment
    condition
    Minimum 0.2% proof strength Rp0.2,MPa
    at a temperature (in°C) of:
    Name Number100150200250
    X2CrNiMoCuN25-6-31.4507+AT450420400380

  • 高温下的最小抗拉强度

    Material designationHeat treatment
    condition
    Minimum tensile strength,MPa
    at a temperature (in°C) of:
    Name Number100150200250
    X2CrNiMoCuN25-6-31.4507+AT660640620610

  • 热处理指南

    Material designationHot formingHeat
    treatment
    symbol
     Solution anneailing
    Name NumberTemperature
    Type of
    cooling
    Temperature
    ℃ ②
    Type of
    cooling
    X2CrNiMoCuN25-6-3 1.45071150 to 1000air+AT1080 ± 40water,air
    ◎ a=air; o=oil; w=water.
    ◎ The temperatures of annealing should be agreed for simulated heat treated test pieces.
    ① Solution annealing in the range specified followed by sufficiently rapid cooling to avoid precipitation of deleterious phases is essential after hot forming these steets.
    ② If heat treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred, or even exceeded.

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