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X6CrNiTi18-10

2023-05-17 15:34:50 来源：钢铁之家 阅读量：0
牌号 X6CrNiTi18-10
1.4541
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 标准等级
X6CrNiTi18-10 化学元素成分含量(%)
成分 C Si Mn P S Cr Ni 更多
最小值 - - - - - 17 9 Ti:5×C~0.7
最大值 0.08 1 2 0.045 0.015 19 12
◎ 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。
碳当量计算
X6CrNiTi18-10 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
C：T ≤ 6 +AT 520~720 Rp0.2：≥220
Rp1.0：≥250
①②		 T ＜ 3mm: ≥40
T ≥ 3mm: ≥ 40
②③		 20℃：
(l: ≥100；t: ≥60)
-196℃：
(t: ≥60)
H：T ≤ 12 +AT 520~720 Rp0.2：≥200
Rp1.0：≥240
①②		 T ＜ 3mm: ≥40
T ≥ 3mm: ≥ 40
②③		 20℃：
(l: ≥100；t: ≥60)
-196℃：
(t: ≥60)
P：T ≤ 75 +AT 500~700 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。
④ 适用于20℃至-196℃之间的任何温度，机械性能可通过线性插值估计。

  • 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
    X6CrNiTi18-101.4541+AT176167157147136130125121119118-
    Minimum 1.0% proof strength Rp1.0,MPa
    at a temperature (in°C) of:
    100150200250300350400450500550600
    208196186177167161156152149147-

  • 高温下的最小抗拉强度

    Material designationMinimum tensile strength Rm,MPa
    at a temperature (in°C) of:
    Name Number100150200250300350400450500550600
    X6CrNiTi18-101.4541440410390385375375375370360330-

  • 热处理指南

    Material designationHot formingHeat
    treatment
    symbol    		 Solution anneailing
    ①②    		Post weld heat 
    treatment
    Stabilized steels
    Name NumberTemperature
    ℃    		Type of
    cooling    		Temperature
    ℃ ③④    		Type of
    cooling    		Temperature
    ℃ ⑥    		Type of
    cooling
    X6CrNiTi18-101.45411150 to 850air+AT1000 to 1100water,air ⑤900 to 940air 
    ◎ 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.

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