GBT528 4-type dumbbell cutting knife die

📊GBT528 4-type dumbbell cutting knife dieComparison of Core Dimensions between GB/T 528 4 Type and DIN 53504 S3A

🔗 Correct correspondence: GB/T 528 Type 4 ≠ DIN 53504 S3A

Based on the clear size differences in the table above, we can draw the following conclusions:

1. Size mismatchThe total length (35mm), width (6mm/2mm), and thickness (1mm) of GB/T 528 4 type are consistent with the dimensions of DIN 53504 S3A (50mm, 8.5mm/4mm, 2mm)There are significant differences, and none of them matchTherefore, theyCannot be used interchangeably.

2. The correct correspondence is：

• GB/T 528 Type 4CorrespondingDIN 53504 S3

• GB/T 528 Type 3CorrespondingDIN 53504 S3A

3. This correspondence has been clarified in the previous round of our discussion on GB/T 528 3 type, and is consistent with the product information provided by the equipment manufacturer: the sample (2 × 8.5 × 50mm) cut from DIN 53504 S3A andISO 37 Type 3The standard sample size is the sameISO 37 Type 3 corresponds to GB/T 528 Type 3.

💡GBT528 4-type dumbbell cutting knife dieSummary and Recommendations

To summarize, this is an easily confused point that requires special attention:

• GB/T 528 Type 4is a kind ofExtremely small and thinThe sample (with a total length of 35mm and a thickness of 1mm) is used for testing materials that are rare or ultra-thin finished products. Its "relatives" in DIN standards areDIN 53504 S3(The size is approximately 1 × 6 × 35mm).

• DIN 53504 S3Ais a kind ofmedium sizeThe sample (total length 50mm, thickness 2mm) corresponds toGB/T 528 Type 3.

So, when purchasing or using knife molds, if you need GB/T 528 4 type, you should look for those that meet the requirementsDIN 53504 S3The cutting knife, not S3A. If DIN 53504 S3A is required, it should be usedGB/T 528 Type 3The cutting knife.