Coated Sheet 


Prepainted Coated Sheet
Tolerances
Tolerances for the steel substrate for prepainted sheet are covered by the tolerances specified for the unpainted metallic coated, steel sheet products. For example, for prepainted GALVALUME® steel sheet, the tolerances are the same as the tolerances for (unpainted) GALVALUME® steel sheet.

For the paint film, there are distinct requirements for attributes such as paint film thickness, paint hardness, primer thickness, paint gloss, etc. These are usually defined by mutual agreement among the customer, the paint company and the coil coater.

Hot-Dip Coated Sheet
U. S. Steel Hot-Dip Coated Sheet is produced to meet the dimensional tolerances as shown in the following Tables (I-IV). If your application requires improved tolerances for performance reasons, please inquire.

 

Table I Nominal Thickness Hot-Dip Coated Sheet Coils Tolerances, Over and Under, for Specified Nominal Thickness
Specified Width, inches	Over .101 - .160	Over .075 - .101	Over .061 - .075	.061 and thinner
24 - 40	.006	.006	.003	.002
Over 40 - 60	.007	.006	.003	.002
Over 60 - 72	.007	.007	.003	.002

 

Table II Minimum Thickness Hot-Dip Coated Sheet Coils Tolerances Over Specified Minimum Thickness
Specified Width, inches	Over .101 - .160	Over .075 - .101	Over .061 - .075	.061 and thinner
24 - 40	.012	.012	.006	.004
Over 40 - 60	.014	.012	.006	.004
Over 60 - 72	.014	.014	.006	.004

 

Table III Width Hot-Dip Coated Sheet
Specified Width, inches	Tolerance Over Specified Width, Inches*
Coils
24 - 30	1/8
Over 30 - 48	3/16
Over 48 - 60	1/4
Over 60 - 72	5/16

*No Tolerance Under

 

Table IV Flatness Hot-Dip Coated Sheet (Not Specified to Stretcher Leveled Standard of Flatness - Coils)
Specified Width, inches		Specified Width, In.	Flatness Tolerances*, In. (Max. Deviation from a horizontal flat surface).
Nominal	Minimum
05 & Thinner	.048 & Thinner	thru 36	3/8
		Over 36 - 60	5/8
		Over 60 - 72	7/8
Over .05	Over .048	thru 36	1/4
		Over 36 - 60	3/8
		Over 60 - 72	5/8

*Tolerances are subject to inquiry when the specified yield strength is in excess of 50 ksi or higher.

Camber Hot-Dip Coated Sheet Coils
Camber is the greatest deviation of a side from a straight line. The measurement is taken on the concave side with a straight edge. The camber tolerance for sheet in coils is 1/2 inch in any 20 feet of length. 

Typical Applications Application Considerations Fabrication Considerations Tolerances