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BZJ464-2014: Weatherability cold-rolled steel sheet and strip
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
BZJ 464-2014	English	139	Add to Cart	2 days [Need to translate]	Weatherability cold-rolled steel sheet and strip
BZJ 464-2009	English	159	Add to Cart	2 days [Need to translate]	Weathering of cold-rolled steel and steel strip

BZJ464-2014: Weatherability cold-rolled steel sheet and strip

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Weatherability cold-rolled steel sheet and strip 1 Scope Baoshan Iron & Steel Co., Ltd. Interim Technical delivery conditions Weathering cold-rolled steel sheet and strip BZJ464-2014 Replacing BZ J 464-2009 The thickness of the Provisional Technical delivery conditions apply to Baoshan Iron & Steel Co., Ltd. production of not more than 2.5mm cold rolled steel for high durability Plate and strip (hereinafter referred to as steel sheet and strip). Steel sheet and strip used in the manufacture of vehicles, containers, doors, windows and other cold-formed steel structures Member. Not recommended for shaping demanding automotive structural parts (such as seat brackets, etc.). 2 Normative References The following documents for the application of this document is essential. For dated references, only the note Version Date apply to this document. For undated references, the latest edition (including any amendments) applies file. Q/BQB 408 cold forming of cold-rolled carbon steel sheet and strip JIS Z2241.2011 Metallic materials - Tensile testing - Method of test at room temperature

3 Classification and designation

Steel sheet and strip grades available specifications shall comply with the requirements in Table 1. Table 1 Unit. mm thickness width B400NQ B450NQ B460NQ B500NQ 0.8 to 0.99 900 to 1,300 - - 1.00 ~ 1.19 ~ 900 ~ 1400 900 1300 - 1.20 to 1.99 900 to 1500 900 to 1400 900 to 1300 ~ 2.00 2.50 900 1600 900 1500 900 1400 ~ 4. Technical Requirements 4.1 Grades and chemical composition of the steel sheet and strip (melting analysis) should meet the requirements of Table 2. Steel sheet and strip 4.2 after heat treatment (annealing) and smooth delivery. 4.3 mechanical properties of steel sheet and strip shall be in accordance with Table 3. Table 2 Chemical composition (Heat analysis)% (by mass) C Si Mn P S Cu Cr Ni Ti B400NQ ≤0.12 0.10 ~ 0.40 0.20 ~ 0.50 ≤0.10 ≤0.020 0.25 ~ 0.40 0.30 ~ 0.65 ≤0.50 - B450NQ ≤0.12 0.25 ~ 0.75 0.20 ~ 0.50 0.07 ~ 0.15 ≤0.020 0.25 ~ 0.55 0.30 ~ 1.25 ≤0.65 - B460NQ ≤0.10 0.12 ~ 0.75 ≤1.00 0.06 ~ 0.12 ≤0.020 0.20 ~ 0.40 - - ≤0.10 B500NQ ≤0.12 0.25 ~ 0.75 0.30 ~ 0.70 ≤0.12 ≤0.020 0.25 ~ 0.55 0.30 ~ 1.25 ≤0.65 - Baoshan Iron & Steel Co. 2014-10-18 Issued on. 2015-03-31 before implementation table 3 Trademark Tensile tests a, b, 180 ° bending test (B≥20mm) c Bend Core diameter Yield Strength MPa not less than tensile strength MPa not less than The Elongation A50mm not less than B400NQ 260 400 27 1a B450NQ 310 450 26 1a B460NQ 340 460 23 1a B500NQ 320 500 22 1a When using RP0.2 yield a clear no, otherwise use ReL. b specimen to specimen, specimen orientation No.5 JIS Z2241 provisions to landscape. ca represents the thickness of the sample to the longitudinal direction of the sample. 5 Other steel strip and other requirements (including size, shape, weight and tolerances, delivery status, surface quality inspection And testing, packaging, marking and inspection documents, etc.) shall comply with the relevant provisions of Q/BQB408 of. ...