ASTM A599/A599M-07(2017) PDF

1.1 This specification covers cold-rolled steel sheet in coils or in cut lengths, tin-coated by electrodeposition. The product is commonly known as electrolytic tin-coated sheet, and is for applications that need good solderability, good surface appearance, and a degree of corrosion resistance. Tin-coated sheet is produced to various designations of tin coating, as outlined in Table 1.

Note 1: Listed below are the commonly produced coating weights [mass] upon agreement between the producer and the purchaser. Other combinations of coatings may be specified and the appropriate minimum average test valuesA apply.

Designation No.

Nominal Tin Coating
Weight [Mass]
(Each Surface)
lb/base box (g/m²)B

Minimum Average Coating
Weight [Mass]
(Each Surface Test Value)
lb/base box (g/m²)B, C

5 (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 (1.7/1.7)

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)

(A) Refer to Specifications A623 and A623M.(B) A 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 A623).(C) The minimum single spot value shall not be less than 80 % of the minimum average tin coating weight [mass] (see 8.1 and 8.2).

1.1.1 Electrolytic tin-coated sheet is customarily available as commercial steel (CS); drawing steel (DS); deep drawing steel (DDS); extra deep drawing steel (EDDS), and structural steel (SS). The tin coating is available as unmelted or melted.

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Published :	09/01/2017