Material Properties
Metric Standard
|
Metric |
Nominal |
Proof |
Yield Strength |
Ultimate Strength |
Elongation |
Reduction of Area |
Core Hardness |
||
|---|---|---|---|---|---|---|---|---|---|
|
Class |
mm |
MPa |
MPa |
MPa |
Min. % |
Min. % |
Min. |
Max. |
|
|
3.6 |
|
180 |
190 |
330 |
25 |
|
B52 |
B99.5 |
 No Grade Mark |
|
4.6 |
5 thru 36 |
225 |
240 |
400 |
22 |
35 |
B67 |
B99.5 |
|
|
4.8 |
1.6 thru 16 |
310 |
340 |
420 |
14 |
|
B71 |
B99.5 |
 |
|
5.8 |
5 thru 24 |
380 |
420 |
520 |
10 |
|
B82 |
B99.5 |
 |
|
8.8 |
< 16 |
580 |
|
800 |
12 |
|
C22 |
C32 |
 |
|
8.8 |
> 16 (12 for structural bolting) |
600 |
660 |
830 |
12 |
35 |
C23 |
C34 |
|
|
9.8 |
Applies only to < 16 |
650 |
|
900 |
10 |
|
C28 |
C37 |
 |
|
10.9 |
6 thru 36 |
830 |
940 |
1040 |
9 |
35 |
C32 |
C39 |
 |
|
12.9 |
1.6 thru 36 |
970 |
1100 |
1220 |
8 |
35 |
C39 |
C44 |
 |
Imperial Standard
|
Inch |
Nominal |
Proof |
Yield Strength |
Ultimate Strength |
Elongation |
Reduction of Area |
Core Hardness |
||
|---|---|---|---|---|---|---|---|---|---|
|
Grade |
in |
Ksi |
Ksi |
Ksi |
Min. % |
Min. % |
Min. |
Max. |
|
|
1 |
1/4 thru 1-1/2 |
33 |
36 |
60 |
18 |
35 |
B70 |
B100 |
No Grade Mark |
|
2 |
1/4 thru 3/4 |
55 |
57 |
74 |
18 |
35 |
B80 |
B100 |
|
|
2 |
Over 3/4 to 1-1/2 |
33 |
36 |
60 |
18 |
35 |
B70 |
B100 |
|
|
4 |
1/4 thru 1-1/2 |
65 |
100 |
115 |
10 |
35 |
C22 |
C32 |
|
|
5 |
1/4 thru 1 |
85 |
92 |
120 |
14 |
35 |
C25 |
C34 |
 |
|
5 |
Over 1 to 1-1/2 |
74 |
81 |
105 |
14 |
35 |
C19 |
C30 |
|
|
7 |
1/4 thru 1-1/2 |
105 |
115 |
133 |
12 |
35 |
C28 |
C34 |
 |
|
8 |
1/4 thru 1-1/2 |
120 |
130 |
150 |
12 |
35 |
C33 |
C39 |
 |