CEMP-E
TI 809-26
1 March 2000
Table 4-3. Chemical Requirements for Sample Structural Steels
Table
(heat analysis, %, maximum, unless range is provided)
(Refer to ASTM specifications for complete information, including applicable
thickness ranges, grades, types, combinations of elements, etc.)
Steel
A572
A572
A36
grade 50
grade 50
A588,
A992
A852
(shapes)
(shapes)
(shapes)
grade B
Compositio
Type 1
Type 2
n
C
0.26
0.23
0.23
0.23
0.20
0.19
Mn
---
1.35
1.35
0.50-1.50
0.75-1.35
0.80-1.35
P
0.04
0.04
0.04
0.035
0.04
0.035
S
0.05
0.05
0.05
0.045
0.05
0.04
Si
0.40
0.40
0.40
0.40
0.15-0.50
0.20-0.65
Cu
#
#
#
0.60
0.20-0.40
0.20-0.40
V
---
0.01-0.15
0.11
0.01-0.10
0.02-0.10
Co
0.005-
---
---
0.05
---
---
0.05
Ni
---
---
---
0.45
0.50
0.50
Cr
---
---
---
0.35
0.40-0.70
0.40-0.70
Mo
---
---
---
0.15
---
---
Shapes composition limits are listed for sections up to 634 kg/m (426 plf).
# minimum 0.20% when specified
3. PROPERTY ENHANCEMENTS FOR STRUCTURAL STEELS.
a. Yield to Ultimate Strength Ratio. AISC design equations assume some margin in structural steel
from the point of yielding to the point of fracture to allow for the redistribution of stress. Some structural
steels have been produced with Fy:Fu ratios as high as 0.95, considerably higher than that considered by
4-9
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