牌号 X1CrNi25-21
1.4335
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 奥氏体不锈钢
标签 特殊等级
X1CrNi25-21 化学元素成分含量(%)
成分 C Si Mn P S Cr Ni Mo N
最小值 - - - - - 24 20 - -
最大值 0.02 0.25 2 0.025 0.01 26 22 0.2 0.11
◎ 未经买方同意,不得随意向钢中添加表中未列的元素,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元素,因为其会削弱钢的机械性能,降低钢的适用性。
X1CrNi25-21 机械性能
条件 热处理或状态
抗拉强度
σb
Mpa
屈服点
σs
Mpa
断后伸长率或延伸率
δ
%
冲击吸收能量
KV2
J
P:T ≤ 75 +AT 470~670 Rp0.2:≥200
Rp1.0:≥240
①②
T < 3mm: ≥40
T ≥ 3mm: ≥ 40
②③
20℃:
(l: ≥100;t: ≥60)
-196℃:
(t: ≥60)
◎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。
◎ 如果热加工和随后冷却的条件符合ENISO3651-2中对产品机械性能和抗晶间腐蚀性的要求,则可以省略固溶处理。
*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,Rp1.0的最小值提高10MPa。
② 如果在轧制宽度<300mm的带材情况下,采用纵向试验件,最小值减小如下:屈服强度-15MPa,恒定标距的延伸率-5%,比例标距延伸率-2%。
③ T<3mm:该值适用于标距为80mm、宽度为20mm的试件,也可以使用标距为50mm、宽度为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

    Material designationHeat treatment
    condition
    Minimum 0.2% proof strength Rp0.2,MPa
    at a temperature (in°C) of:
    Name Number100150200250300350400450500550600
    X1CrNi25-211.4335+AT150140130120115110105----
    Minimum 1.0% proof strength Rp1.0,MPa
    at a temperature (in°C) of:
    100150200250300350400450500550600
    180170160150140135130----

  • 高温下的最小抗拉强度

    Material designationMinimum tensile strength Rm,MPa
    at a temperature (in°C) of:
    Name Number100150200250300350400450500550600
    X1CrNi25-211.4335440425410390385380-----

  • 热处理指南

    Material designationHot formingHeat
    treatment
    symbol
     Solution anneailing
    ①②
    Higher alloyed 
    austenitic
    steels with ≤ 0.02% C
    Name NumberTemperature
    Type of
    cooling
    Temperature
    ℃ ③④
    Type of
    cooling
    Temperature
    ℃ ⑥
    Type of
    cooling
    X1CrNi25-211.43351150 to 850air+AT1030 to 1110water,air ⑤not recommended
    ◎ a=air; o=oil; w=water.
    ◎ Scale and annealing colours produced during hot forming, heat treatment or welding may adversely affect the corrosion resistance. They should be removed as far as possible before use, e.g. by pickling.
    ◎ The temperatures of annealing should be agreed for simulated heat treated test pieces.
    ① The solution treatment may be omitted if the conditions for hot working and subsequent cooling are such that the requirements for the mechanical properties of the product and the resistance to intergranular corrosion as defined in EN ISO 3651-2 are obtained and provided these requirements are met even after appropriate subsequent solution annealing.
    ② Re-crystallizing annealing.
    ③ If heat treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred, or even exceeded.
    ④ The lower end of the range specified for solution annealing should be aimed at for heat treatment as part of further processing,because otherwise the mechanical properties might be affected. If the temperature of hot forming does not drop below the lower temperature for solution annealing.a temperature of 980℃ is adequate as a lower limit for Mo-free steels,a temperature of 1000℃ for steels with Mo contents up to 3% and a temperature of 1020℃ for steets with Mo contents exceeding 3%.
    ⑤ cooling sufficiently rapid.
    ⑥ Minimum holding time:30min.

X1CrNi25-21 对应不同标准
1 EN 10088-1-2005 不锈钢 第1部分:不锈钢的清单
2 EN 10253-4-2003 对接焊管道接头.具有特殊检验要求的锻制奥氏体和铁素体-奥氏体(二相)不锈钢
3 ISO TS 15510-2003 技术规范 不锈钢-化学成分
4 ISO 15510-2014 技术规范 不锈钢-化学成分
5 ISO 9328-7-2018 不锈钢承压扁钢制品
6 NF EN 10088-2-2005 普通用途不锈钢板和钢带的交货技术条件
7 NF EN 10088-1-2005 不锈钢 - 第1部分:不锈钢清单
8 NF EN 10028-7-2008 压力容器用不锈钢扁平产品
9 NF EN 10028-7-2000 压力容器用不锈钢扁平产品
注:数据仅供参考!如有疑问,请填写"我要纠错"!
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