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A249 TP304N簡介

牌號 A249 TP304N
美國UNS S30451
對應(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 TP304N 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 0.08 1 2 0.045 0.03 20 11 0.16
碳當(dāng)量計(jì)算
A249 TP304N 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 		斷后伸長率或延伸率
δ
% 		斷面收縮率
ψ
%
Solutioning Temperature 1040℃ ≥550 ≥240 ≥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.
近似對照表 奧氏體不銹鋼
中國 中國臺灣 日本 韓國 美國 國際標(biāo)準(zhǔn)組織 歐標(biāo)
GB ISC CNS JIS KS ASTM UNS ISO 數(shù)字牌號 EN 數(shù)字牌號
06Cr19Ni10N
(0Cr19Ni9N) 		S30458 304N1 SUS 304N1
SUS 304N2 		STS 304N1 304N S30451 X5CrNiN 19-9 4315-304-51-I X5CrNiN 19-9 1.4315
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