Cold
Finish Squares
|
|
Conforms to: ASTM A29.
Related Specifications:
Chemistry: (Per ASTM A29, Table
1)
|
Grade
Designation |
Heat
Chemical Ranges & Limits, % |
|||
|
Carbon |
Manganese |
Phosphorus |
Sulfur |
|
|
1018 |
0.15
-0.20 |
0.60
-0.90 |
0.040 max. |
0.050
max. |
|
1045 |
0.43
-0.50 |
0.60
-0.90 |
0.040 max. |
0.050
max. |
Size Tolerance * : (Per ASTM A29,
Table A1.13)
|
Size, in. “S” |
1018 |
1045 |
|
Max.
of Carbon Range Under 0.28% |
Max.
of Carbon Range Over 0.28% to 0.55% |
|
|
To
¾, incl. |
0.003 |
0.005 |
|
¾
to 1-1/2, incl. |
0.004 |
0.006 |
|
1-1/2
to 2-1/2, incl. |
0.005 |
0.007 |
|
2-1/2
to 4, incl. |
0.007 |
0.009 |
|
4
to 5, incl. |
0.011 |
NA |
* Tolerances are minus only, all plus
tolerances are 0.
Straightness Tolerances (Per ASTM A29, Table A1.14)
|
Size,
in. |
Length,
ft. |
1018 |
1045 |
|
Max.
of Carbon Range Under 0.28% |
Max.
Carbon Range Over 0.28%-0.55% |
||
|
Less
than 5/8 |
Less
than 15 |
3/16 |
1/4 |
|
Less
than 5/8 |
15
& over |
5/16 |
3/8 |
|
5/8
& over |
Less
than 15 |
1/8 |
3/16 |
|
5/8
& over |
15
& over |
3/16 |
¼ |
10