Sheet Specifications
and Information
| Stainless Sheet Inventory |
|
- Many Coil Widths and gauges available in 304, 304L, and
316L in 2B and polished finishes.
- High-temperature stainless grades 309S and 310S
- 321 and 347
- Duplex 2205
- 400 Series, including 409 / 410 / 430
- 304 #8 Mirror Finish (non-directional)
- 316L #4 Polished Sheet
- 17-4PH and 17-7PH
- Tempered sheet 301-1/4, 1/2 and full hard available
|
|
| Processing & Service Capabilities |
|
- CNC Shear cutting - 1 piece or 1000 pieces - we will shear your order
- Multiple water jet tables to cut intricate part geometry with precision tolerances
- Coil processing of custom lengths with low order minimums
- Special polishing available upon request
- Export packaging available
- Original Mill Test reports
|
|
It
is the industry practice of Penn Stainless Products, Inc. customers to
order sheet to a "Gauge". This number is commonly used in the industry and
references a specific thickness. The gauge number and thickness may vary
between suppliers. The following table is the conversion utilized by North
American Stainless. The tolerances are from A480-05, Table A2.5.
Sheet can also be ordered to different finishes. A description of the
standard finishes available on sheet follows. Penn Stainless Products does
not have the capability to polish sheet but will outsource the polishing when
required by the customer.
|
Unpolished or Rolled Finishes |
|
No 1 |
A rough, dull surface, which results from hot rolling to the specified
thickness, followed by annealing and descaling. |
|
No 2D |
A dull finish which results from cold rolling followed by annealing and descaling, and may perhaps gets a
final light roll pass through unpolished rolls. A 2D finish is used where appearance is of no concern. |
|
No 2B |
A bright, cold-rolled finish resulting in the same manner as No.2D finish, except that the annealed and
descaled sheet received a final light roll pass through polished rolls. This is the general-purpose cold-rolled
finish that can be used as is, or a preliminary step to polishing. |
|
BA Bright Anneal |
The bright annealed mill surface is obtained by annealing the material
under an atmosphere so that scale is not produced on the surface. |
|
Polished Finishes |
|
No 3 |
An intermediate polished surface obtained by finishing with a 100-grit abrasive. Generally used where a
semi finished
polished surface is required. A No. 3 finish usually receives additional polishing during fabrication. |
|
No 4 |
A polished surface obtained by finishing with a 120-150 mesh abrasive, following initial grinding with coarser
abrasives. This is a general purpose bright finish with a visible "grain" which prevents mirror reflection. |
|
No 6 |
A dull satin finish having lower reflectivity than No 4 finish. It is produced by Tampico brushing the No. 4 finish
in a medium of abrasive and oil. It is used for architectural applications and ornamentation where a high
luster is undesirable, and to contrast with brighter finishes. |
|
No 7 |
A highly reflective finish that is obtained by buffing finely ground surfaces but not to the extent of completely
removing the "grit" lines. It is used chiefly for architectural and ornamental purposes. |
|
No 8 |
The most reflective surface, which is obtained by polishing with successively finer abrasives and buffing
extensively until all grit lines from preliminary grinding operations are removed. It is used for applications
such as mirrors and reflectors. |
|
Permitted Variations in Over and
Under
for specified width in Inches |
Sheet gauge to
Thickness Conversion |
Less than 40" |
40" to Less
Than 50" |
50" to less
than 84" |
WT Per
Sq/ft |
|
7GA |
0.1875" |
0.007 |
0.007 |
0.0075 |
7.877 |
|
8GA |
0.1650" |
0.007 |
0.007 |
0.0075 |
6.931 |
|
10GA |
0.1350" |
0.007 |
0.007 |
0.007 |
5.670 |
|
11GA |
0.1200" |
0.007 |
0.007 |
0.007 |
5.040 |
|
12GA |
0.1050" |
0.005 |
0.005 |
0.006 |
4.410 |
|
13GA |
0.0900" |
0.004 |
0.004 |
0.005 |
3.780 |
|
14GA |
0.0750" |
0.004 |
0.004 |
0.0045 |
3.15 |
|
16GA |
0.0600" |
0.004 |
0.004 |
0.0045 |
2.52 |
|
18GA |
0.0480" |
0.003 |
0.003 |
0.004 |
2.016 |
|
20GA |
0.0360" |
0.0025 |
0.0025 |
0.003 |
1.512 |
|
22GA |
0.0300" |
0.002 |
0.002 |
XXXX |
1.260 |
|
24GA |
0.0240" |
0.002 |
0.002 |
XXXX |
1.008 |
|
26GA |
0.0180" |
0.0015 |
0.0015 |
XXXX |
0.756 |
|
28GA |
0.0150" |
0.0015 |
0.0015 |
XXXX |
0.6301 |
|
30GA |
0.0120" |
0.001 |
XXXX |
XXXX |
0.5000 |
