Grade Information
Mechanical Properties
|
Standard |
Grade |
Size (inches) |
Tensile, ksi |
Yield, ksi min |
Yeild, MPa min |
Elong. % min |
RA % min |
|
F1554 |
36 |
1/2"-4" |
58-80 |
36 |
248 |
23 |
40 |
|
F1554 |
55 |
1/2"-2" |
75-95 |
55 |
380 |
21 |
30 |
|
2-1/4-2- 1/2" |
22 |
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|
2-3/4"-3" |
20 |
||||||
|
3-1/4"-4" |
18 |
||||||
|
F1554 |
105 |
1/2"-3" |
125-150 |
105 |
724 |
15 |
45 |
|
A193 |
B7 |
1/2"-2-1/2" |
125 |
105 |
|
16 |
50 |
|
2-3/4"-4" |
115 |
95 |
Chemical Properties
|
Element |
36 |
Grade 55/105 |
Grade B7 |
||
|
< .76" |
.76"-1.5" |
> 1.5" |
|||
|
Carbon (max) |
.26% |
.27% |
.28% |
|
.37-.49% |
|
Manganese |
|
.60%-.90% |
|
.65-1.10% |
|
|
Phosphorus (max) |
.04% |
.04% |
.035% |
||
|
Sulfur (max) |
.05% |
.05% |
.04% |
||
|
Copper (min) |
.20% |
.20% |
|
||
-If your print calls for SI Grade 55 we must know at the time the order is placed. If not specified, the Grade 55 may not be weldable.
-When Grade 36 is specified, a weldable Grade 55 may be furnished at the supplier's option.
-This sheet is for informational purposes only. Please consult your blueprint or engineer before selecting the proper grade.