Tensile Test Methods for Plastics: ASTM D638 - Specs

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Type I

ASTM D638 Specimen Dimensions

Full length,l3

165
Parallel length,l2

57
Gauge length,l1

50
Parallel section width,strong1

13
Thickness,h

7 mm or less
（ Recommend 3.2±0.4 mm ）
Grip section width,strong2

19
Distance between grips

115
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Type II

ASTM D638 Specimen Dimensions

Full length,l3

185
Parallel length,l2

57
Gauge length,l1

50
Parallel section width,strong1

6
Thickness,h

7 mm or less
（ Recommend 3.2±0.4 mm ）
Grip section width,strong2

19
Distance between grips

135
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Type III

ASTM D638 Specimen Dimensions

Full length,l3

165
Parallel length,l2

57
Gauge length,l1

50
Parallel section width,strong1

19
Thickness,h

7mm to 14mm
Grip section width,strong2

29
Distance between grips

115
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Type V

ASTM D638 Specimen Dimensions

Parallel length,l2

63.5
Parallel section width,strong1

7.62
Thickness,h

4mm or less
Grip section width,strong2

9.53
Distance between grips

25.4
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Type IV

ASTM D638 Specimen Dimensions

Full length,l3

115
Parallel length,l2

33
Gauge length,l1

25
Parallel section width,strong1

6
Thickness,h

4mm or less
Grip section width,strong2

19
Distance between grips

65
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