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S275NL簡介

牌號 S275NL
歐標鋼號 1.0491
對應(yīng)標準 EN 10025-3-2004
熱軋結(jié)構(gòu)鋼鋼材 第3部分：正火/正火軋制可焊接的細晶結(jié)構(gòu)鋼
Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels
S275NL 化學(xué)元素成分含量(%)
成分 C Si Mn P ① S ①② Cr Ni Cu ④ Mo N Ti V Nb Al ③
最小值 - - 0.5 - - - - - - - - - - 0.02
最大值 0.16 0.4 1.5 0.025 0.02 0.3 0.3 0.55 0.1 0.015 0.05 0.05 0.05 -
① For long products the P and S content can be 0.005% higher.
② For railway applications a maximum S content of 0.010% may be agreed at the time of enquiry and order.
③ If sufficient other N-binding elements are present the minimum total Al content does not apply.
④ Cu content above 0.40% may cause hot shortness during hot forming.
S275NL 機械性能
公稱厚度
t
mm		 抗拉強度
σb
Mpa 		屈服點
σs
Mpa 		斷后伸長率或延伸率
δ
%
t≤16 370~510 ≥275 ≥24
16 370~510 ≥265 ≥24
40 370~510 ≥255 ≥24
63 370~510 ≥245 ≥23
80 370~510 ≥235 ≥23
100 350~480 ≥225 ≥23
150 350~480 ≥215 ≥23
200 350~480 ≥205 ≥23
For plate,strip and wide flats with widths≥600mm the direction transverse (t) to the rolling direction applies. For all other products the values apply for the direction parallel (l) to the rolling direction
近似對照表 碳素結(jié)構(gòu)鋼和工程用鋼
美國 德國 歐標 英國
ASTM DIN EN/DIN EN 數(shù)字牌號 BS EN/BS
A633Gr.A TStE285 S275NL
FeE275KTN① 		1.0491 43EE
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