Compreendendo a espessura real da chapa de aço inoxidável de 1,5 mm

Understanding the Actual Thickness of 1.5mm Stainless Steel Sheet

1. What is the actual thickness of 1.5 thick stainless steel?

What is the actual thickness of a 1.5mm stainless steel plate?

I recently purchased a 1.5mm thick stainless steel sheet, but the actual measured thickness was only 1.3mm. Is this in line with national standards?

The actual thickness of 304 stainless steel with a nominal thickness of 1.5mm is generally less than 1.5mm.

What is the standard thickness for 1.5mm stainless steel?

According to national standards, the acceptable positive and negative tolerance for a 1.5mm thick stainless steel sheet must be within a specified range.

The difference between the standard and actual thickness of stainless steel is that the standard thickness is normally greater than the actual thickness.

The thickness difference between the actual thickness and the standard thickness must comply with relevant standards.

2. Allowable thickness deviation of 1.5 thick stainless steel plate

What is the national standard for thickness tolerance of 1.5mm cold rolled stainless steel sheet?

The national standard for the thickness of a cold-rolled stainless steel sheet of 1.5mm is specified in GBT3280-2015 Cold-Rolled Stainless Steel Plate and Strip.

The actual thickness of a 1.5mm stainless steel sheet must comply with the following guidelines:

Allowable thickness deviation of stainless steel plate 1.5mm

National standard Tolerance requirements (unit: mm)
Default name Situation PT.A PT.B
GB/T3280-2015 Cold Rolled Stainless Steel Plate and Strip Wide steel strip and rolled steel sheet, longitudinal wide steel strip and rolled steel strip Width box <1250 1250~2100 600~<1000 1000~<1250 1250~2100
Tolerance ±0.12 ±0.15 ±0.07 ±0.08 ±0.10
Narrow steel strip and coiled steel strip PT.A PT.B
Width box <125 125~<250 250~<600 <125 125~<250 250~<600
Tolerance ±0.035 ±0.04 ±0.045 ±0.03 ±0.035 ±0.04
  • The permitted thickness deviation must comply with the general accuracy provisions (PT. A). If the buyer requires it and is specified in the contract, a higher level of precision (PT. B) can be used.
  • For example, when a 1.5mm thick stainless steel plate is 1219mm wide, the tolerance for normal accuracy is 1.38-1.62mm and for higher accuracy is 1.42-1.58 mm. This means that the minimum thickness for a 1.5mm*1219mm stainless steel plate must be at least 1.38mm.

3. Minimum thickness requirements of 1.5 thick stainless steel plate

According to the table of national standards, the minimum actual thickness required for stainless steel sheets of certain specifications must meet the following standards:

  • For a stainless steel sheet that is 1.5mm thick and 1000mm wide, the actual thickness must be at least 1.38mm.
  • For a stainless steel sheet that is 1.5mm thick and 1219mm wide, the actual thickness must be at least 1.38mm.
  • For a stainless steel sheet that is 1.5mm thick and 1500mm wide, the actual thickness must be at least 1.35mm.
  • For a stainless steel sheet that is 1.5mm thick and 1800mm wide, the actual thickness must be at least 1.35mm.
  • For a stainless steel sheet that is 1.5mm thick and 2000mm wide, the actual thickness must be at least 1.35mm.

When purchasing a stainless steel sheet, if it is 1.5mm thick but the actual measurement is only 1.3mm, it does not meet the national standard. The actual thickness and minimum thickness required to meet the standard will vary depending on the specifications of the stainless steel sheet.

What is the actual thickness of 1.5mm stainless steel plate and what thickness should be achieved to meet the standard? I assume you have your own answer.

4. Provisions of other standards regarding 1.5 mm thick stainless steel

The actual thickness of a stainless steel plate must be determined in accordance with the relevant standard. For example, according to the Japanese standard JIS G4305:2012 for cold-rolled stainless steel sheets, plates and strips, a 1.5mm stainless steel sheet (wide strip and rolled plate, longitudinal wide strip and rolled strip) It has an accuracy of ±0.12mm when its width is less than 1250mm and ±0.15mm when its width is between 1250-1600mm.

Therefore, according to the Japanese standard:

(1) The actual thickness of a stainless steel plate 1.5mm thick and 1000mm wide should not be less than 1.38mm;

(2) For a 1.5mm thick and 1219mm finished stainless steel plate, the actual thickness should not be less than 1.38mm;

(3) The actual thickness of a 1.5mm thick 1500mm finished stainless steel plate should not be less than 1.35mm, which is in accordance with the national standard GB/T3280-2015.

Conteúdo relacionado

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.