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A249 TP304LN簡(jiǎn)介

牌號(hào) A249 TP304LN
美國(guó)UNS S30453
對(duì)應(yīng)標(biāo)準(zhǔn) ASTM A249/A249M-2018
焊接奧氏體鋼鍋爐、過熱器、熱交換器和冷凝器管
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
歸類 奧氏體不銹鋼
A249 TP304LN 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni N
最小值 - - - - - 18 8 0.1
最大值 0.03 1 2 0.045 0.03 20 11 0.16
注：For small diameter or thin walls. or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary in Grades TP304L Small outside diameter tubes are defined as those less than 0.500 inch [12.7 mm] in outside diameter and light wall are those less than 0.049 inch [1.2 mm] in minimum wall thickness. 碳當(dāng)量計(jì)算
A249 TP304LN 機(jī)械性能
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
% 		硬度
HBW
Solutioning Temperature 1040℃ ≥515 ≥205 ≥35 HRB
≤90
注：Quenched in water or rapidly cooled by other methods, at a rate sufficient to prevent reprecipitation of chromium carbides, as demonstrated by the capability of passing Practices A262, Practice E. The manufacturer is not required to run the test unless it is specified on the purchase order (See Supplementary Requirement S6). Note that Practices A262 requires the test to be performed on sensitized specimens in the low carbon and stabilized types and on specimens representative of the as-shipped condition of the other types. In the case of low-carbon types containing 3 % or more molybdenum, the applicability of the sensitizing treatment prior to testing shall be a matter for negotiation between the seller and purchaser.
近似對(duì)照表 奧氏體不銹鋼
中國(guó) 中國(guó)臺(tái)灣 日本 韓國(guó) 美國(guó) 國(guó)際標(biāo)準(zhǔn)組織 德國(guó) 法國(guó) 歐標(biāo) 瑞典 英國(guó)
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN 數(shù)字牌號(hào) SS BS EN/BS
022Cr19Ni10N
(00Cr18Ni10N) 		S30453 304LN SUS 304LN STS 304LN 304LN S30453 X2CrNiN 18-9
X2CrNiN18-10 		X2CrNiN 18-10 1.4311 Z2CN 18-1Az
Z3CN18-10Az 		X2CrNiN 18-10 1.4311 2371 304S62
304S61
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