BZJ471-2014 English PDF

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BZJ471-2014: Cold rolled steel sheet and strip for household electrical appliances panel

BZJ471: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
BZJ 471-2014	139	Add to Cart	2 days	Cold rolled steel sheet and strip for household electrical appliances panel
BZJ 471-2009	159	Add to Cart	2 days	Cold Rolled Steel Plate and Strip for Household Appliance Panel	Obsolete

Similar standards

BZJ 464   BZJ 465   BZJ 463   

Basic data

Standard ID: BZJ 471-2014 (BZJ471-2014)
Description (Translated English): Cold rolled steel sheet and strip for household electrical appliances panel
Sector / Industry: Chinese Industry Standard
Word Count Estimation: 3,397
Issuing agency(ies): Baosteel Group Corporation

BZJ471-2014: Cold rolled steel sheet and strip for household electrical appliances panel

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Cold rolled steel sheet and strip for household electrical appliances panel Baoshan Iron & Steel Co. 2014-10-18 Published 12015-03-31 implementation Baoshan Iron & Steel Co., Ltd. Interim Technical delivery conditions Appliance cold-rolled steel sheet and strip panel

1 Scope

Replacing BZ J 471-2009 The technical delivery conditions apply to interim Baoshan Iron & Steel Co., Ltd. manufactures home appliances cold-rolled steel sheet and strip panel (hereinafter Said steel sheet and strip). 2 Normative References The following documents for the application of this document is essential. For dated references, only the Release date applies to this document. For undated references, the latest edition (including all amendments ) Apply to this document. RT Test Method. Test Part 1 GB/T 228.1-2010 metal material tensile GB/T 230.1-2009 metallic materials - Rockwell hardness test - Part 1. Test methods (A, B, C, D, E, F, G, H, K, N, T scales) Methods of measurement GB/T 2523-2008 cold-rolled sheet metal (with) the surface roughness and peak number of Size Q/BQB 401 cold-rolled steel sheet and strip, shape, weight and tolerance 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

3.1 grade steel sheet and strip and use shall comply with the provisions in Table 1. Table 1 Use features Grade BLC-JD1 Spraying Washer outer panel Bake hardening of BLC-JD2 outer plate freezer BLC-JD3 refrigerator side and spraying with a small refrigerator panels BLD-JD1 Covered with Deep red panel refrigerator film Aging resistance BLD-JD2 refrigerator stamping film panel BLD-JD3 general refrigerator film panel 4 size, shape, weight and tolerance 4.1 Each grade steel sheet and strip are available specifications should meet the requirements of Table 2. 4.2 inner diameter of the steel strip Strip selectable inner diameter of 420mm, 508mm, 610mm. Typically, the inner diameter of the strip panel (44) of the refrigerator 508mm and 420mm. When ordering, supply and demand sides negotiated shall use the applicable internal diameter of the steel strip. 4.3 Roughness 4.3.1 steel irregularities shall conform to Table 3. 4.3.2 Other dimensions, shape, weight and tolerances shall comply with the provisions of Q/BQB401 of. Table 2 Unit. mm Grade Thickness Width BLC-JD1 0.45 ~ 0.60 700 ~ 1280 > 0.60 ~ 1.30 800 ~ 1350 BLC-JD2 0.45 ~ 0.60 700 ~ 1250 > 0.60 ~ 1.30 800 ~ 1350 BLC-JD3 0.45 ~ 0.60 700 ~ 1280 > 0.60 ~ 1.30 800 ~ 1400 BLD-JD1 0.50 ~ 0.60 700 ~ 1280 > 0.60 ~ 1.30 800 ~ 1350 BLD-JD2 0.50 ~ 0.60 700 ~ 1250 > 0.60 ~ 1.30 800 ~ 1350 BLD-JD3 0.50 ~ 0.60 700 ~ 1280 > 0.60 ~ 1.30 800 ~ 1400 table 3 Grade irregularities mm BLC-JD1 ≤3.0 BLC-JD2 ≤3.0 BLC-JD3 ≤2.5 BLD-JD1, BLD-JD2, BLD-JD3 ≤2.0

5 Technical requirements

5.1 Chemical composition For grades BLC-JD1, BLC-JD2, BLC-JD3 steel sheet and strip, its chemical composition should be consistent with Q/BQB408 in BLC specified grade; for grades BLD-JD1, BLD-JD2, BLD-JD3 steel sheet and strip, its chemical composition Shall comply with the provisions in grades BLD Q/BQB408. 5.2 Mechanical Properties Mechanical properties of the steel sheet and strip shall comply with the requirements of Table 4. No.5 tensile test specimens as specified in JIS Z2241 sample, Sample orientation to landscape. Table 4 Grade Yield strength MPa hardness HR30T BLC-JD1 - 45 ~ 55 BLC-JD2 - 46 ~ 56 BLC-JD3 - 48 ~ 58 BLD-JD1 170 ~ 220 ≤46 BLD-JD2 195 ~ 245 ≤51 BLD-JD3 200 ~ 260 ≤52 5.3 surface quality 5.3.1 designations BLC-JD1, BLC-JD2, BLC-JD3 steel sheet and strip, allowing the presence of a small amount of light without feeling Surface defects; for grades BLD-JD1, BLD-JD2, BLD-JD3 steel sheet and strip, do not allow the influence of painting After the appearance of defects in quality. Average roughness and average peak density 5.3.2 steel sheet and strip in accordance with Table 5. Suppliers such as to guarantee, may not provide average Average roughness and peak density data. table 5 Grade average roughness Ra ([Mu] m) Average peak density PC BLC-JD1 ≥0.8 - BLC-JD2 ≥0.8 - BLC-JD3 ≥0.8 - BLD-JD1 ≥1.1 ≥80 BLD-JD2 ≥1.1 ≥80 BLD-JD3 ≥1.0 ≥80

6 inspection and testing

6.1 steel sheet and strip appearance was visually inspected. Size 6.2 steel sheet and strip, shape should be appropriate measurement tool. 6.3 tensile test shall be in accordance with GB/T 228.1 Method B. In order to improve the reproducibility of the measurement results, we recommend using the beam displacement Control method, the yield strength measured rate of 5% Lc/min, as measured parallel to the tensile rate (Lc of the sample 40% Lc/min length). 6.4 Acceptance steel sheet and strip shall grant each inspection lot shall be not more than 30 tons of the same grade, same size, same processing status Steel sheet and strip components. For weighing more than 30 tons of steel, each composed of a coil inspection lot. 6.5 each batch of steel sheet and strip the test items, the number of tests, sampling methods and test methods shall comply with the provisions in Table 6. 6.6 The supplier may use different tests and test methods for acceptance testing. Event of a dispute, should present technical conditions Inspection and testing methods and related technical requirements for testing. Table 6   Number of test items Test (a) Test Method for Sampling method Tensile test 1/batch GB/T 2975 GB/T 228.1 Method B Hardness test 2/batch GB/T 230.1 Surface roughness 1/batch GB/T 2523 7 Other steel plates 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. ......

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