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350L40簡(jiǎn)介

牌號(hào) 350L40
對(duì)應(yīng)標(biāo)準(zhǔn) AS /NZS 3678-2016
熱軋結(jié)構(gòu)鋼板、波紋板和厚板
Structural steel - Hot-rolled plates, floorplates and slabs
歸類 合金鋼
350L40 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+Ti≤0.15；Cr+Ni+Cu+Mo≤1；Ceq≤0.48
最大值 0.22 0.5 1.7 0.04 0.03 0.25 0.3 0.4 0.08 0.04 0.1 0.06 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 碳當(dāng)量計(jì)算
350L40 機(jī)械性能
條件 熱處理或狀態(tài)
抗拉強(qiáng)度
σb
屈服點(diǎn)
σs
斷后伸長(zhǎng)率或延伸率
δ
%
板材和底板(地板用花紋板);t≤12 熱軋 ≥450 ≥360 ≥20
板材和底板(地板用花紋板);12 熱軋 ≥450 ≥350 ≥20
板材和底板(地板用花紋板);20 熱軋 ≥450 ≥340 ≥20
板材和底板(地板用花紋板);80 熱軋 ≥450 ≥330 ≥20
板材和底板(地板用花紋板);150 熱軋 ≥450 ≥320 ≥19
①For test piece cross-sectional area > 1000 mm2, 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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