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牌號(hào) X6CrNi18-10
1.4948
對應(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 抗蠕變等級(jí)
X6CrNi18-10 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni N
最小值 0.04 - - - - 17 8 -
最大值 0.08 1 2 0.035 0.015 19 11 0.1
◎ 未經(jīng)買方同意，不得隨意向鋼中添加表中未列的元素聂弓，冶煉精加工除外资妇。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，因?yàn)槠鋾?huì)削弱鋼的機(jī)械性能奋肄，降低鋼的適用性肛冶。
X6CrNi18-10 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 		斷后伸長率或延伸率
δ
% 		沖擊吸收能量
KV2
J
C：T ≤ 8 +AT 530~740 Rp0.2：≥230
Rp1.0：≥260
①②		 T ＜ 3mm: ≥45
T ≥ 3mm: ≥ 45
②③④		 20℃：
(l: ≥100览徒；t: ≥60)
H：T ≤ 13.5 +AT 510~710 Rp0.2：≥210
Rp1.0：≥250
①②		 T ＜ 3mm: ≥45
T ≥ 3mm: ≥ 45
②③		 20℃：
(l: ≥100；t: ≥60)
P：T ≤ 75 +AT 510~710 Rp0.2：≥190
Rp1.0：≥230
①②		 T ＜ 3mm: ≥45
T ≥ 3mm: ≥ 45
②③		 20℃：
(l: ≥100漫雷；t: ≥60)
◎C- 冷軋帶鋼; H- 熱軋帶鋼; P- 熱軋中厚板瓜富；T- 厚度鳍咱；t- 橫向；l-縱向食呻。
◎+A=軟化退火流炕；+AT=固溶退火；+QT=淬火及回火仅胞；+RA=再結(jié)晶退火每辟。
◎ 奧氏體鋼有足夠的韌性，不需要進(jìn)行沖擊試驗(yàn)干旧。相比之下渠欺，奧氏體-鐵素體鋼必須按要求做沖擊試驗(yàn)，以確保足夠的韌性椎眯。
*抗晶間腐蝕根據(jù)EN ISO 3651-2進(jìn)行測試酥丛。在交貨條件下：無；在致敏狀態(tài)下：無咒舰。
① 對于連續(xù)熱軋產(chǎn)品蘸暮，可在詢價(jià)和訂購時(shí)商定Rp0.2(即表中σs)的最小值提高20MPa，Rp1.0的最小值提高10MPa埂帜。
② 如果在軋制寬度<300mm的帶材情況下懊据，采用縱向試驗(yàn)件，最小值減小如下:屈服強(qiáng)度-15MPa跑科，恒定標(biāo)距的延伸率-5%接纽，比例標(biāo)距延伸率-2%。
③ T＜3mm：該值適用于標(biāo)距為80mm贝渣、寬度為20mm的試件阶铝，也可以使用標(biāo)距為50mm、寬度為12.5mm的試件确告。T ≥3mm：該值適用于標(biāo)距為5.65√S的試件惊也。
④ 對于矯直材料，最小值低5%遇患。

  • 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
    X6CrNi18-101.4948+AT1781571421271171081039893888378
    Minimum 1.0% proof strength Rp1.0,MPa
    at a temperature (in°C) of:
    50①100150200250300350400450500550600
    215191172157147137132127122118113108
    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
    X6CrNi18-101.4948484440410390385375375375370360330300
    ① Determined by linear interpolation.

  • 熱處理指南

    Material designationHot formingHeat
    treatment
    symbol    		 Solution anneailing
    ①②    		Post weld heat 
    treatment
    Creep resisting steels
    Name NumberTemperature
    ℃    		Type of
    cooling    		Temperature
    ℃ ③④    		Type of
    cooling    		Temperature
    ℃ ⑥    		Type of
    cooling
    X6CrNi18-101.49481150 to 850air+AT1050 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.

  • 蠕變性能

    DesignationHeat treatment
    condition    		TemperatureStrength for
    rupture    		Strength for
    1% (plastic)
    creep strain 
    in MPa for ①
    Name Number°C10000h30000h50000h100000h150000h200000h250000h10000h100000h
    X6CrNi18-10 1.4948+AT500250--192-176-147114
    510239--182-166-142111
    520227--172-156-137108
    530215--162-146-132104
    540203--151-136-127100
    550191165155140-125-12196
    560177154145128-114-11692
    570165144136117-104-11188
    580154135126107-95-10684
    59014312611898-86-10079
    60013211711089-78-9474
    61012210910281-70-8869
    6201131019473-62-8263
    630104948765-55-7556
    64095--58-49-6849
    65087--52-43-6143
    66080--47-38-5537
    67073--42-34-4932
    68067--37-30-4428
    69061--32-26-3925
    70055--28-22-3522
    710(45)--(22)---(31)(15)
    720(41)--(20)---(28)(14)
    730(38)--(18)---(26)(13)
    740(36)--(16)---(25)(12)
    750(34)--(15)---(24)(11)
    ◎ Values were taken from DIN 17460 [3].
    ① Values in parantheses involved time and/or stress extrapolation; values with asterisk involved time extrapolation.


X6CrNi18-10 對應(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 10269-2006 規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金
3 EN 10269-2013 規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金
4 NF EN 10269-1999 用于高溫或低溫條件下的緊固件用鋼及鎳合金
5 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
6 ISO 9328-7-2018 不銹鋼承壓扁鋼制品
7 EU 95-1979 耐熱鋼：交貨技術(shù)條件
8 NF EN 10088-1-2005 不銹鋼 - 第1部分：不銹鋼清單
9 NF EN 10028-7-2008 壓力容器用不銹鋼扁平產(chǎn)品
10 NF EN 10028-7-2000 壓力容器用不銹鋼扁平產(chǎn)品
注：數(shù)據(jù)僅供參考赵颅！如有疑問，請?zhí)顚?我要糾錯(cuò)"暂刘！
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