Class 12.9


Class 10.9
Class 8.8

1,200
1,034

1,000 MPa

900 MPa

827
700
(Stainless Steel) A4 80
A2/A4 70 (304-316)
(Stainless Steel)

600 MPa

500 MPa
400 MPa
Class 4.6
(Mild Steel)

Grade 9
Grade 8
Grade 5
Grade 2
(Mild Steel)
Imperial
Metric
Approximate Comparison of Tensile Strengths
A2/A4 70 (304-316)
(Stainless Steel)
150,000
120,000
62,000
400
MPa
lb/in²
101,000
180,000
1,100 MPa
This chart is provided as a guide only and not for reference purposes. Newcastle Hi-Tensile Bolt Company can not be held responsible for loss or damage arising from the use of this information

72500
500
A2/A4 50 (304-316)
Allthread
A2/A4 50 (304-316)
Allthread