BZJ493-2004 English PDF

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BZJ493-2004: Cold Rolled Carbon and Low Carbon Rolled Hard Coils

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
BZJ 493-2004	119	Add to Cart	2 days	Cold Rolled Carbon and Low Carbon Rolled Hard Coils

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Basic data

Detail Information of BZJ 493-2004; BZJ493-2004
Description (Translated English): Cold Rolled Carbon and Low Carbon Rolled Hard Coils
Sector / Industry: Chinese Industry Standard
Word Count Estimation: 2,000
Drafting Organization: BaoSteel Group
Administrative Organization: BaoSteel Group

BZJ493-2004: Cold Rolled Carbon and Low Carbon Rolled Hard Coils

---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 Carbon and Low Carbon Rolled Hard Coils Baoshan Iron & Steel Co., Ltd. Interim Technical delivery conditions Cold rolled carbon and low carbon hard-rolled steel coil (rolling hard volumes) 1 Scope The provisions of the Interim Technical delivery conditions for cold-rolled carbon and low carbon hard-rolled steel coil size, shape, weight, technical requirements, Inspection and testing, packaging, marking and quality certificate. This standard applies to Baoshan Iron & Steel Co., Baosteel Branch, cold-rolled sheet plant a thickness of 0.17mm ~ 0.80mm, width 750mm ~ 1020mm cold-rolled carbon and low carbon hard-rolled steel coil (hereinafter referred to as rolling hard volume).

2 Normative references

The following documents contain provisions which, through this interim technical supply conditions of reference in terms of the Provisional Technical delivery conditions for this. All Is dated reference documents, all subsequent amendments (not including errata content) or revisions do not apply to this Interim technical supply conditions, however, encourage the parties to the present interim study Technical delivery conditions for agreement as to its use The latest versions of these files. For undated reference documents, the latest versions apply to this interim technical supply Article Member. Chemical GB/T 222-1984 steel assay sampling and chemical composition of the finished product tolerance GB/T 223 steel and alloy chemical analysis method GB/T 8170-1987 numerical rounding rules Q/BQB 400-2003 cold-rolled products, packaging, marking and quality certification Size Q/BQB 401-2003 Cold rolling steel sheet and strip, shape, weight and tolerance

3 Ordering information required

The user should provide the following information when ordering 3.1. a) Product Name b) The product standards c) Grade d) Product specifications and thickness accuracy e) Packing f) use 3.2, the product according to the present standard of ordinary thickness such as thickness precision and accuracy of delivery order contract packaging does not indicate, press Provided by the supplier of packaging packaging. 4 size, shape, weight and tolerance 4.1 Thickness tolerance 4.1.1 rolling hard volumes thickness tolerances shall comply with Q/BQB401 Table 4, the specified minimum yield strength < 280MPa When the corresponding provisions. 4.1.2 The total length of the weld thickness of 15m within the allowable deviation than a predetermined value for more than 50%. 4.2 Width tolerance 4.2.1 rolling hard roll width tolerance of 0 ~ 5mm. 4.2.2 rolling hard volumes of edge cracking or jagged edges should be less than 2mm, split or jagged edges of the core within 50 meters of the edge should be less than 3mm. 4.3 rolling hard volumes of an inner diameter of 508mm. 4.4 shape 4.4.1 rolling hard volumes of waviness (wave height and wave length ratio) should not exceed 3%. 4.4.2 rolling hard volumes pyramid should be less than 40mm. 4.5 wt. Rolling hard volumes on actual weight delivery.

5 Technical requirements

5.1 Grades and chemical composition 5.1.1 Steel grades and chemical composition (melting analysis) shall comply with the requirements in Table 1. Baoshan Iron & Steel Co. 2004-01-17 Posted 2004-02-15 implementation 4-200 Table 1 Chemical composition% Grade C Mn PS Alt a CDCM-SPCC ≤0.12 ≤0.50 ≤0.035 ≤0.025 ≥0.020 CDCM-SPCD ≤0.10 ≤0.45 ≤0.030 ≤0.025 ≥0.020 CDCM-SPCE CDCM-SPCEN ≤0.08 ≤0.40 ≤0.025 ≤0.020 ≥0.020 CDCM-DC01 ≤0.10 ≤0.50 ≤0.035 ≤0.025 ≥0.020 CDCM-DC03 ≤0.08 ≤0.45 ≤0.030 ≤0.025 ≥0.020 CDCM-DC04 ≤0.08 ≤0.40 ≤0.025 ≤0.020 ≥0.020 a time for all grades when C≤0.01 Alt≥0.015. 5.1.2 rolling hard volumes of finished chemical composition tolerances shall comply with the provisions of GB/T 222's. 5.2 Melting Method Rolling hard volumes used in smelting steel using oxygen. 5.3 Delivery Status Rolling hard volumes pickling, cold rolling after delivery, without electrolytic degreasing and heat treatment, the surface is not coated with anti-rust oil, rolled edge status side. 5.4 Mechanical Properties For parties requested hardness values can be negotiated when ordering. 5.5 surface quality 5.5.1 rolling hard roll surface allows for nicks, dents and roll marks, and obviously feel a small amount of residual traces of the presence of the emulsion. Not allowed to have cracks, inclusions and other use of harmful defects, rolling hard volumes without any delamination. 5.5.2 rolling hard volumes because there is no opportunity to cut with the defective portion, thereby allowing the delivery with defects, but the defective part can not More than 6% of the total length of each volume. 5.6 Number of rolling hard volumes within the weld should be no more than one.

6 inspection and testing

6.1 rolling hard volumes appearance by visual inspection. 6.2 rolling hard volumes the size and shape should be the appropriate choice of measurement tool. 6.3 Thickness measurement points for rolling hard volumes from the edge of not less than 25mm at any point. 6.4 rolling hard volumes of test items, the number of samples, sampling methods and test methods shall be in accordance with Table 2. Table 2 Number of samples test item number (a) Test Method for Sampling method Chemical analysis 1 1/furnace GB/T 222 GB/T 223 7 packaging, marking and quality certificate Rolling hard volumes of packaging, marking and quality certificate shall comply with Q/BQB 400's. For a party to have special packaging weight Requirements should be specified in the contract.

8 numerical rounding rules

Numerical rounding rules should comply with GB/T 8170's. 4-201 ......

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