Tel : 0086-021-60880117
Tel : 0086-021-60880117
ASTM A709 250 steel is a standard specification for structural steel in bridges.
Low alloy A709 Grade 250 bridge structural steel are used to manufacture the plants of factory,bridge,the common construction and construction machinery and equipment.
Production way we can offer:Hot Rolled,Quenched( Q),Tempered( T).
A709 Grade 250 steel chemical composition %
|
category
|
Structural steel(all) |
Steel plate |
Steel bar |
|||||
|
Thickness(mm） |
|
≤20 |
20~≤40 |
40~≤65 |
65~≤100 |
≤20 |
20~≤40 |
40~≤100 |
|
Cmax |
0.25 |
0.25 |
0.25 |
0.25 |
0.27 |
0.26 |
0.27 |
0.28 |
|
Mnmax |
~ |
~ |
0.80-1.20 |
1.80-1.20 |
1.80-1.20 |
0.30-0.90 |
0.30-0.90 |
0.30-0.90 |
|
Pmax |
0.40 |
0.40 |
0.40 |
0.40 |
0.40 |
0.40 |
0.40 |
0.40 |
|
Smax |
0.50 |
0.50 |
0.50 |
0.50 |
0.50 |
0.50 |
0.50 |
0.50 |
|
Simax |
≤0.40 |
≤0.40 |
≤0.40 |
0.15-0.40 |
0.15-0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
|
Cumax |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
A709 Grade 250 steel Mechanical properties
|
Grade
|
steel thickness |
Steel flange thickness |
yield strength |
Tensile strength |
elongation |
|||
|
|
|
|
|
|
Steel plate and steel |
sectional material |
||
|
|
|
|
|
|
200mm |
50mm |
200mm |
200mm |
|
250 |
≤100 |
≤75 |
250min |
400-500 |
20 |
23 |
20 |
21 |
|
|
~ |
>75 |
250min |
400min |
~ |
~ |
20 |
19 |
We keep more than 10,000 tons A709 Grade 250 steel plates in stock each month.we can meet our customer’s any quantity request.and we have to tell you that you can get more useful information of A709 Grade 250 bridge structural steel or the better products,just contact us.
Related Product:
A709 Grade 36,A709 Grade 50,A709 Grade 50S,A709 Grade 50W,A709 Grade HPS 50W,A709 Grade HPS 70W,A709 Grade HPS 100W,A709 Grade 345, A709 Grade 485, A709 Grade 690