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450S0簡介

牌號	450S0
對應標準	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

450S0 化學元素成分含量(%)

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；Ceq≤0.48
最大值	0.22	0.55	1.7	0.04	0.03	0.25	0.3	0.6	0.35	0.04	0.1	0.06	0.1	Nb+V+Ti≤0.15；Ceq≤0.48

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 碳當量計算

450S0 機械性能

條件	熱處理或狀態(tài)	抗拉強度 σ_b	屈服點 σ_s	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	≥520	≥450	≥16
板材和底板(地板用花紋板);20	熱軋	≥500	≥420	≥18
板材和底板(地板用花紋板);32	熱軋	≥500	≥400	≥18
板材和底板(地板用花紋板);50	熱軋	≥500		≥18

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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