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牌號 200
對應(yīng)標(biāo)準(zhǔn) AS /NZS 3678-2016
熱軋結(jié)構(gòu)鋼板远燕、波紋板和厚板
Structural steel - Hot-rolled plates, floorplates and slabs
歸類 合金鋼
200 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni Cu Mo Ti V Nb Al 更多
最小值 - - - - - - - - - - - - - Nb+V≤0.06;Cr+Ni+Cu+Mo≤1;Ceq≤0.25
最大值 0.15 0.25 0.6 0.03 0.03 0.25 0.3 0.4 0.08 0.04 0.05 0.02 0.1
①The use of sulfide modification steelmaking techniques (such as Ca addition) is permitted for listed grades
②For Z25 grades sulfur 0. 008% maximllm. Z35 grades sulfur 0.005% maximum.
③Boron shall not be int entionally added to the steel without the agreement of the purchaser
200 機械性能
條件 熱處理或狀態(tài)
抗拉強度
σb
Mpa
屈服點
σs
Mpa
斷后伸長率或延伸率
δ
%
板材和底板(地板用花紋板);t≤20 熱軋 ≥300 ≥200 ≥24
板材和底板(地板用花紋板);20<t≤150 熱軋 ≥300 ≥24
板材和底板(地板用花紋板);150<t≤200 熱軋 ≥290 ≥23
①For test piece cross-sectional area > 1000 mm<sup>2</sup>, minimum elongation is reduced by 2%
②Suffix Z added to grade designation indicates that material has been through-thickness tested. Minimum reduction of area: 15% for grade suffix Z15, 25% for grade suffix Z25 and 35% for grade suffix Z35.
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