Astm Sheet Metal Tolerances

0236 004 0276.

Astm sheet metal tolerances.

Specifications a414 a414m a424 a424m a606 a606m a659 a659m a794 a794m a1008 a1008m a1011 a1011m and a1039. 0276 41 88 lb weight of carbon steel per cubic ft 40 sq ft 4 x10 sheet 46 24. During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. The permitted thickness would be from 0 1196 to 0 1356 as this thickness permits 0 016 inch tolerance for sheets over 40 inch wide.

Astm ansi mechanical steel sheet mechanical tolerances. The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are not representative of the manufacturer s standard gauge which has no inherent tolerances. The tolerance is only 0 014 inch for sheet narrower than 40 inches. Hr hot rolled cr cold rolled sheet metal gage guage size chart carbon steel sheets.

0236 plus 008 is considered to be 24 ga. And astma653 a653m 94 standard specification for sheet steel zinc coat galvanized or zinc iron alloy coated galvanized by the hot dip process. Table a2 8 permitted variations in flatness of cold rolled wide coil processed product as cut lengths. 0236 plus 004 is considered the nominal for 24 ga.

It applies to the following specifications that describe carbon steel structural steel and high strength low alloy steel hsla furnished as hot rolled sheet and cold rolled sheet. These measurements are based on astm a924 924m 94 standard specification for general requirements for sheet steel metallic coated by the hot dip process formerly astma525. Thcikness in mm deviation allowed for the specified width w in mm w 60 1525 w 60 1525 0 072 1 83 0 006 0 15 0 009 0 22 0 072 1 83 0 083 2 11 0 007 0 18 0 010 0 25 0 083 2 11 0 098 2 49 0 008 0 20 0 011 0 27. 253 330 333 304 309 316 321 347 410 446 2205 2507 2101 17 4 17 5 800 tolerances listed were taken from astm a480 reference only cold rolled coil.

The following charts give typical astm and ansi steel sheet mechanical tolerance ranges. Actual weight actual scale weight of the coil. This explains why 11 gauge at 0 1196 inch is called 1 8th inch. Astm b152 ams 4530 ams 4532 astm b103 astm b122 astm b152 astm b194 astm b36 astm b465 astm b534 astm b591 astm b740 astm b768 services.

Astm a240 a480 steel sheet sthickness tolerance. Astm a480hot rolled sheet coil thickness tolerance. Tolerance below apply to the following alloys. Theoretical nominal weight tnw weight based upon the lineal footage using nominal weight per foot.

1 1 this specification covers the general requirements for steel sheet in coils and cut lengths. Browse by astm or ams select by astm or ams i e.