ASTM A599 A599M-2002 Standard Specification for Tin Mill Products Electrolytic Tin-Coated Cold-Rolled Sheet.pdf
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1、Designation: A 599/A 599M 02Standard Specification forTin Mill Products, Electrolytic Tin-Coated, Cold-RolledSheet1This standard is issued under the fixed designation A 599/A 599M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, th
2、e year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers cold-rolled steel sheet in coilsor in cut lengths, tin-coated by electrodepositio
3、n. The productis commonly known as electrolytic tin-coated sheet, and is forapplications that need good solderability, good surface appear-ance, and a degree of corrosion resistance. Tin-coated sheet isproduced to various designations of tin coating, as outlined inTable 1.1.1.1 Electrolytic tin-coat
4、ed sheet is customarily availableas commercial steel (CS); drawing steel (DS); deep drawingsteel (DDS); extra deep drawing steel (EDDS), and structuralsteel (SS). The tin coating is available as unmelted or melted.1.2 LimitationsThis specification is applicable to ordersin either inch-pound units (a
5、s A 599), which is supplied inthicknesses from 0.015 in. to 0.033 in., or SI units as A 599M,which is supplied in thicknesses from 0.38 mm to 0.84 mm.For thicknesses lighter than 0.015 in. 0.38 mm, refer to A 624A 624M.1.3 Unless the order shows the “M” designation SI units,the product shall be furn
6、ished to inch-pound units. The valuesstated in either inch-pound or SI units are to be regarded asstandard. Within the text, the SI units are shown in brackets.The values stated in each system are not exact equivalents;therefore, each system must be used independently of the other.Combining values f
7、rom the two systems may result in noncon-formance with this specification.2. Referenced Documents2.1 ASTM Standards:A 568/A 568M Specification for Steel, Sheet, Carbon, andHigh-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements for2A 623 Specification for Tin Mill Products, General
8、 Require-ments3A 623M Specification for Tin Mill Products, General Re-quirements (Metric)3A 624/A 624M Specification for Tin Mill Products, Electro-lytic Tinplate, Single-Reduced3A 630 Test Methods for Determination of Tin CoatingWeights for Hot-Dip and Electrolytic Tin Plate3A 700 Practices for Pac
9、kaging, Marking, and LoadingMethods for Steel Products for Domestic Shipment4A 1008/A 1008M Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy andHigh-Strength Low-Alloy with Improved Formability23. Terminology3.1 Definitions of Terms Specific to This Standard:3
10、.1.1 chemical treatmenta passivating chemical treat-ment, normally applied to the tinned surface to stabilize thesurface to control tin oxide formation and growth. Sodiumdichromate is most commonly used. Without such treatment,severe tin oxide growth, and its resultant discoloration, is ahazard. Exc
11、essive oxide growth may also cause poor solder-ability and poor adhesion of organic coatings. If a specialsurface treatment is required, it should be negotiated with thesupplier.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel, and Related Alloys and is th
12、e direct responsibility of SubcommitteeA01.20 on Tin Mill Products.Current edition approved September 10, 2002. Published November 2002.Originally published as A 599 69. Last previous edition A 599 99.2Annual Book of ASTM Standards, Vol 01.03.3Annual Book of ASTM Standards, Vol 01.06.4Annual Book of
13、 ASTM Standards, Vol 01.05.TABLE 1 Electrolytic Tin-Coated Sheets Coating Weight MassNOTE 1Listed below are the commonly produced coating weightsmass upon agreement between the producer and the purchaser. Othercombinations of coatings may be specified and the appropriate minimumaverage test valuesAa
14、pply.Designation No.Nominal Tin CoatingWeight Mass(Each Surface)lb/base box (g/m2)BMinimum Average CoatingWeight Mass(Each Surface Test Value)lb/base box (g/m2)B,C5 (0.6/0.6) 0.025/0.025 (0.6/0.6) 0.02/0.02 (0.5/0.5)10 (1.1/1.1) 0.05/0.05 (1.1/1.1) 0.04/0.04 (0.9/0.9)15 (1.7/1.7) 0.075/0.075 (1.7/1.
15、7) 0.06/0.06 (1.4/1.4)20 (2.2/2.2) 0.10/0.10 (2.2/2.2) 0.08/0.08 (1.8/1.8)25 (2.8/2.8) 0.125/0.125 (2.8/2.8) 0.11/0.11 (2.5/2.5)50 (5.6/5.6) 0.25/0.25 (5.6/5.6) 0.23/0.23 (5.2/5.2)75 (8.4/8.4) 0.375/0.375 (8.4/8.4) 0.35/0.35 (7.8/7.8)100 (11.2/11.2) 0.50/0.50 (11.2/11.2) 0.45/0.45 (10.1/10.1)ARefer
16、to Specifications A 623 and A 623M.BA base box is defined as a unit of area equivalent to 112 sheets 14 in. by 20 in.or 31 360 in.2(refer to Specification A 623).CThe minimum single spot value shall not be less than 80 % of the minimumaverage tin coating weight mass (see 8.1 and 8.2).1Copyright ASTM
17、 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2 Finishes:3.2.1 No. 5 Finisha shot-blasted roll base metal finishusually employed on unmelted tin-coated sheet.3.2.2 No. 7 Finisha ground-roll base metal finish usuallyemployed on melted tin-coated
18、 sheet.3.2.2.1 DiscussionIt is possible to produce either No. 5 orNo. 7 Finish as unmelted or melted; however, end applicationis important and should be negotiated with the producer.3.3 melted tin coatingtin coated by electrodeposition on abase steel normally having a ground-roll finish (see 3.2), a
19、ndthen melted to reflow the tin. The resultant coating has abrighter appearance than unmelted tin. An iron-tin alloy layeris developed during the melting operation, thus reducing theamount of free tin available. Due to the limitations of thereflow section of the plating lines, certain thicknesses ma
20、y notbe available with a melted finish.3.4 oilan extremely thin oil film furnished on both sur-faces of tinned sheet to minimize abrasion in shearing, coilingor uncoiling, shipping, and handling. Usually dioctyl sebecate(DOS) or acetyl tributyl citrate (ATBC) is used. Surface activeagents such as gl
21、ycerol mono-oleate may be incorporated intothe lubricant for application on tinned sheet. Oil film other thannormal should be negotiated with the producer. The oil film isnot a drawing lubricant.3.5 unmelted tin coatingtin-coated by electrodepositionon a base steel normally having a dull, blasted-ro
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