Civil Engineering Reference
In-Depth Information
Main ribs
Letter or symbol
for producing mill
Bar size #11
Type steel*
Main ribs
Letter or symbol
for producing mill
Bar size #36
Type steel*
H
11
S
60
H
36
S
4
H
H
11
36
S
for billet-steel (A615)
for rail-steel (A996)
R
for rail-steel (A996)
A
for axle-steel (A996)
W
for low-alloy steel (A706)
S
for billet-steel (A615M)
for rail-steel (A996M)
R
for rail-steel (A996M)
A
for axle-steel (A996M)
W
for low-alloy steel (A706M)
S
S
Grade mark
Grade line (one line only)
Grade mark
Grade line (one line only)
*Bars marked with an
S
and
W
meet both A615 and A706
*Bars marked with an
S
and
W
meet both A615 and A706
GRADE 60
GRADE 420
Main ribs
Letter or symbol
for producing mill
Bar size #14
Type steel
Main ribs
Letter or symbol
for producing mill
Bar size #43
Type steel
H
14
S
H
43
S
5
H
H
14
S
43
S
S
for billet-steel (A615)
S
for billet-steel (A615M)
75
Grade mark
Grade line (two lines only)
Grade mark
Grade line (two lines only)
GRADE 75
GRADE 520
Main rib
Letter or symbol
for producing mill
Bar size #6
Type steel
Main rib
Letter or symbol
for producing mill
Bar size #19
Type steel
H
6
S
H
19
S
S
for billet-steel (A615)
for rail-steel (A996)
R
for rail-steel (A996)
A
for axle-steel (A996)
S
for billet-steel (A615M)
for rail-steel (A996M)
R
for rail-steel (A996M)
A
for axle-steel (A996M)
GRADES 40 and 50
GRADES 300 AND 350
Figure 1.3
Identification marks for ASTM standard bars. (Courtesy of Concrete Reinforcing Steel
Institute.)
