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250S0简介

牌号 250S0
对应标准 AS /NZS 3678-2016
热轧结构钢板、波纹板和厚板
Structural steel - Hot-rolled plates, floorplates and slabs
归类 合金钢
250S0 化学元素成分含量(%)
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≤0.44
最大值 0.22 0.5 1.7 0.04 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 碳当量计算
250S0 机械性能
条件 热处理或状态
抗拉强度
σb
屈服点
σs
断后伸长率或延伸率
δ
%
板材和底板(地板用花纹板);t≤8 热轧 ≥410 ≥280 ≥22
板材和底板(地板用花纹板);8 热轧 ≥410 ≥260 ≥22
板材和底板(地板用花纹板);12 热轧 ≥410 ≥250 ≥22
板材和底板(地板用花纹板);50 热轧 ≥410 ≥240 ≥22
板材和底板(地板用花纹板);80 热轧 ≥410 ≥230 ≥22
板材和底板(地板用花纹板);150 热轧 ≥400 ≥220 ≥21
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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