ASTM SA709 “Standard Specification for Structural Steel for Bridges” is a specification for use in truck frames, brackets, crane booms, rail cars, and similar applications. There are eight grades are available in four yield strength levels, and grade
A709 Gr. 100 is at 690MPa level. And Katalor has many ex-works steels for bridge use.
ASME SA709 Grade 100W Chemical Composition
|
SA709 Grade 100W Chemical Composition |
|
Thickness Max |
Type A,% |
Type B,% |
Type C,% |
Type E,% |
Type F,% |
Type H,% |
Type J,% |
Type M,% |
Type P,% |
Type Q,% |
|
32 |
32 |
32 |
100 |
65 |
50 |
32 |
50 |
100 |
100 |
|
C |
0.15-0.21 |
0.12-0.21 |
0.10-0.20 |
0.12-0.20 |
0.10-0.20 |
0.10-0.21 |
0.12-0.21 |
0.12-0.21 |
0.12-0.21 |
0.14-0.21 |
|
Mn |
0.80-1.10 |
0.70-1.00 |
1.10-1.50 |
0.40-0.70 |
0.60-1.00 |
0.95-1.30 |
0.45-0.70 |
0.45-0.70 |
0.45-0.70 |
0.95-1.30 |
|
P max |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
|
S max |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
|
Si |
0.40-0.80 |
0.20-0.35 |
0.15-0.30 |
0.20-0.40 |
0.15-0.35 |
0.20-0.35 |
0.20-0.35 |
0.20-0.35 |
0.20-0.35 |
0.15-0.35 |
|
Ni |
- |
- |
- |
- |
0.70-1.00 |
0.30-0.70 |
- |
1.20-1.50 |
1.20-1.50 |
1.20-1.50 |
|
Cr |
0.50-0.80 |
0.40-0.65 |
- |
1.40-2.00 |
0.40-0.65 |
0.40-0.65 |
- |
- |
0.85-1.20 |
1.00-1.50 |
|
Mo |
0.18-0.28 |
0.15-0.25 |
0.15-0.30 |
0.40-0.60 |
0.40-0.60 |
0.20-0.30 |
0.50-0.65 |
0.45-0.60 |
0.45-0.60 |
0.40-0.60 |
|
V |
- |
0.30-0.08 |
- |
- |
0.03-0.08 |
0.03-0.08 |
- |
- |
- |
0.03-0.08 |
|
Ti |
- |
0.01-0.03 |
- |
0.01-0.10 |
- |
- |
- |
- |
- |
- |
|
Zr |
0.05-0.15 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
Cu |
- |
- |
- |
- |
0.15-0.50 |
- |
- |
- |
- |
- |
|
B |
0.0025-max |
0.0005-0.005 |
0.001-0.005 |
0.001-0.005 |
0.0005-0.006 |
0.0005-0.005 |
0.001-0.005 |
0.001-0.005 |
0.001-0.005 |
- |
ASME SA709 Grade 100W Mechanical Property
|
Grade |
Thickness mm |
Yield strength Mpa |
Tensile strength Mpa |
Elongation, % 2 in. or 50 mm Min |
|
SA709 Grade 100W |
≤65 |
690 min |
760-895 |
18 |
|
65-100 |
620min |
690-895 |
16 |
A709 Grades HPS 100W [HPS 690W] steels shall be made using a low-hydrogen practice, such as vacuum degassing during steel making; controlled soaking of the ingots, slabs; controlled slow cooling of the ingots, slabs, or plates, or a combination thereof. The requirements of SA709 Grade HPS 100W [HPS 690W] for fine austenitic grain size in Specification A6/A6M shall be met.
If measured on the Fig. 3 (Test Methods A370) 1 1/2 -in. [40–mm] wide specimen of SA709 Gr. HPS 100W, the elongation is determined in a 2-in. or 50-mm gage length that includes the fracture and shows the greatest elongation.
40 % minimum applies if measured on the Fig 3 (Test Methods A370) 1 1/2 -in. [40-mm] wide specimen of SA709 Gr. HPS 100W; 50 % minimum applies if measured on the Fig. 4 (Test Methods A370) 1/2 -in. [12.5-mm] round specimen of SA709 Gr.HPS 100W.
