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牌號(hào) X2CrNiN18-10
1.4311
對(duì)應(yīng)標(biāo)準(zhǔn) NF EN 10028-7-2008
壓力容器用不銹鋼扁平產(chǎn)品
Flat products made of steels for pressure purposes - Part 7 : stainless steels
歸類 奧氏體不銹鋼
標(biāo)簽 耐腐蝕等級(jí)
X2CrNiN18-10 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni N
最小值 - - - - - 17.5 8.5 0.12
最大值 0.03 1 2 0.045 0.015 19.5 11.5 0.22
◎ 未經(jīng)買方同意,不得隨意向鋼中添加表中未列的元素脑播,冶煉精加工除外。采取一切必要措施以防在廢鋼和生產(chǎn)原料中帶入這些元素弟诲,因?yàn)槠鋾?huì)削弱鋼的機(jī)械性能吻悍,降低鋼的適用性分较。
X2CrNiN18-10 機(jī)械性能
條件 熱處理或狀態(tài)
抗拉強(qiáng)度
σb
Mpa
屈服點(diǎn)
σs
Mpa
斷后伸長(zhǎng)率或延伸率
δ
%
沖擊吸收能量
KV2
J
C:T ≤ 8 +AT 550~750 Rp0.2:≥290
Rp1.0:≥320
①②
T < 3mm: ≥40
T ≥ 3mm: ≥ 40
②③
20℃:
(l: ≥100;t: ≥60)
-196℃:
(t: ≥60)
H:T ≤ 13.5 +AT 550~750 Rp0.2:≥270
Rp1.0:≥310
①②
T < 3mm: ≥40
T ≥ 3mm: ≥ 40
②③
20℃:
(l: ≥100囚上;t: ≥60)
-196℃:
(t: ≥60)
P:T ≤ 75 +AT 550~750 Rp0.2:≥270
Rp1.0:≥310
①②
T < 3mm: ≥40
T ≥ 3mm: ≥ 40
②③
20℃:
(l: ≥100南垦;t: ≥60)
-196℃:
(t: ≥60)
鋼材:20℃ ④ - ≥550 Rp0.2:≥270
Rp1.0:≥310
≥40 -
鋼材:-80℃ ④ - ≥850 Rp0.2:≥350
Rp1.0:≥420
≥40 -
鋼材:-150℃ ④ - ≥1050 Rp0.2:≥450
Rp1.0:≥550
≥35 -
鋼材:-196℃ ④ - ≥1250 Rp0.2:≥550
Rp1.0:≥650
≥35 -
◎C- 冷軋帶鋼; H- 熱軋帶鋼; P- 熱軋中厚板;T- 厚度痰拢;t- 橫向跛鸵;l-縱向。
◎+A=軟化退火资柔;+AT=固溶退火焙贷;+QT=淬火及回火;+RA=再結(jié)晶退火贿堰。
◎ 奧氏體鋼有足夠的韌性辙芍,不需要進(jìn)行沖擊試驗(yàn)。相比之下羹与,奧氏體-鐵素體鋼必須按要求做沖擊試驗(yàn)故硅,以確保足夠的韌性。
*抗晶間腐蝕根據(jù)EN ISO 3651-2進(jìn)行測(cè)試纵搁。在交貨條件下:有吃衅;在致敏狀態(tài)下:有往踢。
① 對(duì)于連續(xù)熱軋產(chǎn)品,可在詢價(jià)和訂購(gòu)時(shí)商定Rp0.2(即表中σs)的最小值提高20MPa徘层,Rp1.0的最小值提高10MPa峻呕。
② 如果在軋制寬度<300mm的帶材情況下,采用縱向試驗(yàn)件趣效,最小值減小如下:屈服強(qiáng)度-15MPa山上,恒定標(biāo)距的延伸率-5%,比例標(biāo)距延伸率-2%私舱。
③ T<3mm:該值適用于標(biāo)距為80mm畦肉、寬度為20mm的試件,也可以使用標(biāo)距為50mm菊舅、寬度為12.5mm的試件礁姿。T ≥3mm:該值適用于標(biāo)距為5.65√S的試件。
④ 適用于20℃至-196℃之間的任何溫度舆滞,機(jī)械性能可通過(guò)線性插值估計(jì)菱区。

  • 高溫下的最小屈服強(qiáng)度

    Material designationHeat treatment
    condition
    Minimum 0.2% proof strength Rp0.2,MPa
    at a temperature (in°C) of:
    Name Number50①100150200250300350400450500550600
    X2CrNiN18-101.4311+AT246205175157145136130125121119118-
    Minimum 1.0% proof strength Rp1.0,MPa
    at a temperature (in°C) of:
    50①100150200250300350400450500550600
    284240210187175167161156152149147-
    ① Determined by linear interpolation.

  • 高溫下的最小抗拉強(qiáng)度

    Material designationMinimum tensile strength Rm,MPa
    at a temperature (in°C) of:
    Name Number50①100150200250300350400450500550600
    X2CrNiN18-101.4311527490460430420410410-----
    ① Determined by linear interpolation.

  • 熱處理指南

    Material designationHot formingHeat
    treatment
    symbol
     Solution anneailing
    ①②
    Post weld heat 
    treatment
    Steel with ≤ 0.03% C
    Name NumberTemperature
    Type of
    cooling
    Temperature
    ℃ ③④
    Type of
    cooling
    Temperature
    ℃ ⑥
    Type of
    cooling
    X2CrNiN18-101.43111150 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.

X2CrNiN18-10 對(duì)應(yīng)不同標(biāo)準(zhǔn)
1 EN 10088-1-2005 不銹鋼 第1部分:不銹鋼的清單
2 EN 10296-2-2005 機(jī)械工程和一般工程用焊接圓鋼管.交貨技術(shù)條件.第2部分:不銹鋼
3 EN 10253-4-2003 對(duì)接焊管道接頭.具有特殊檢驗(yàn)要求的鍛制奧氏體和鐵素體-奧氏體(二相)不銹鋼
4 EN 10250-4-1999 一般工程用途的自由鍛鋼鍛件:不銹鋼
5 DIN 17440-1972 不銹鋼質(zhì)量標(biāo)準(zhǔn)
6 EN 10088-3-2005 不銹鋼第3部分:一般用途的半成品,鋼棒服讯,軋制線材和型鋼的交貨條件
7 ISO 9327(-5)-1999 承壓鋼鍛件和軋制或鍛制不銹鋼棒-技術(shù)交付條件-第5部分:不銹鋼
8 EN 10269-2013 規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金
9 EN 10088-3-2014 不銹鋼 - 第3部分:半成品绎瓣,棒材,桿材授灵,線材堵忌,型材和光亮產(chǎn)品的一般用途耐腐蝕鋼的交貨技術(shù)條件
10 DIN EN 10269-2014 規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金
11 ISO 9328-7-2018 不銹鋼承壓扁鋼制品
12 DIN EN 10088-3-2014 不銹鋼-半成品、棒材藏亲、桿材杯道、線材、型材及光亮產(chǎn)品交貨技術(shù)條件
13 NF EN 10088-2-2005 普通用途不銹鋼板和鋼帶的交貨技術(shù)條件
14 NF EN 10088-1-2005 不銹鋼 - 第1部分:不銹鋼清單
15 NF EN 10028-7-2008 壓力容器用不銹鋼扁平產(chǎn)品
16 NF EN 10296-2-2005 機(jī)械和一般工程用焊接圓鋼管-交貨技術(shù)條件-第2部分:不銹鋼管
17 NF EN 10028-7-2000 壓力容器用不銹鋼扁平產(chǎn)品
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