HOT COLD ROLLED STEEL SHEETS |
AISI THICKNESS TOLERANCE RANGE |
STANDARD SHEET GAUGE & WEIGHTS |
GALVANIZED |
SHEET AND COIL SELECTION GUIDE
LOW
CARBON
A
low cost steel sheet, soft enough to bend flat on itself in any direction,
without cracking, ductile enough for shallow drawing. Carbon is .10 max.
(instead of .15 max.) for improved welding and forming. Surface has normal
mill oxide. Conforms to ASTM A569. Used for tanks, barrels, farm
implements and other applications where finish is secondary.
PICKLED AND OILED
Acid pickling provides smoother, more uniform surface.
Paint and enamel adhere well. Properties and characteristics same as low
carbon sheets. Conforms to ASTM A569. Typical applications: auto
parts, appliances, toys, etc.
ABRASIONS
RESISTING
Medium carbon content plus higher manganese greatly improve
resistance to abrasion. 210 min. Brinell. For scrapers, liners, chutes,
conveyors—outlasting low carbon steel by two to ten times. Moderate
form-ability.
COLD ROLLED
LOW CARBON
A continuous mill product made with a high degree of gauge
accuracy and uniformity of physical characteristics. The smooth deoxidized
matte finish gives an excellent base for paint, lacquer and enamel. Box
annealing and absence of scale permit stamping and moderate drawing operations.
Sheets bend flat on themselves without cracking. Oiling protects surface
against rust. Conforms to ASTM A366—with carbon content held to .10 max.
(instead of .15 max. as the spec permits) for improved welding and forming.
GALVANIZED
GALVANIZED
is a
term long used to describe steel sheets coated with zinc. Usually associated
with the hot dipped process but the zinc coating can also be applied by
electroplating. Our hot dipped galvanized sheets are produced to conform with
ASTM A525. Electrogalvanized conforms to ASTM A591.
The producing mills
have accomplished many technological advancements in recent years in the
manufacture of both hot dipped and electrogalvanized sheets. The end use should
determine the type of coated product and surface condition required. Regardless
of the coating weight, spangle size, method of manufacture or surface
preparation required. Following are descriptions of the grades and conditions
of galvanized sheets used most often.
COATING
| ASTM designation | Minimum check limit by triple spot test (oz/sq ft) |
| G-60 Light Commerical |
.060 |
| G-90 Commercial up to | 0.90 |
| G-210 | 2.10 |
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