ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure/steel machining parts intended for use in bridges,railways,ships,vehicles,machine tools,etc.
ASTM A709 steel covers carbon and high-trength low alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates.
A709 Gr.50 steel equivalent: GB/T 714 Q345qC grade
|
Thickness in mm |
Shapes all |
Plates |
Bars |
|||||
|
To 20 |
20 to 40 |
40 to 65 |
65 to 100 |
To 20 |
20 to 40 |
40 to 100 |
||
|
C max % |
0.26 |
0.25 |
0.25 |
0.26 |
0.27 |
0.26 |
0.27 |
0.28 |
|
Mn % |
... |
... |
0.8-1.2 |
0.8-1.2 |
0.85-1.2 |
... |
0.6-0.9 |
0.6-0.9 |
|
P max % |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
|
S max % |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
|
Si |
0.40 max |
0.40 max |
0.40 max |
0.15-0.40 |
0.15-0.40 |
0.40 max |
0.40 max |
0.40 max |
|
Cu,min % |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
|
C |
Mn |
P |
S |
|
0.23 |
1.35 |
0.04 |
0.05 |
|
|
Type A |
Type B |
Type C |
|
C |
0.19 max |
0.20 max |
0.15 max |
|
Mn |
0.80-1.25 |
0.75-1.35 |
0.80-1.35 |
|
P |
0.04 max |
0.04 max |
0.04 max |
|
S |
0.05 max |
0.05 max |
0.05 max |
|
Si |
0.30-0.65 |
0.15-0.50 |
0.15-0.40 |
|
Ni |
0.40 max |
0.50 max |
0.25-0.50 |
|
Cr |
0.40-0.65 |
0.40-0.70 |
0.30-0.50 |
|
Cu |
0.25-0.40 |
0.20-0.40 |
0.20-0.50 |
|
V |
0.02-0.10 |
0.01-0.10 |
0.01-0.10 |
|
Grade |
Plate thickness in mm |
Structural shape flange or leg thickness,in mm |
Yield point or yield strength ksi mpa |
Tensile strength ksi mpa |
|
36 |
To 100 |
To 75 |
250 min |
400-550 |
|
|
Over 75 |
250 min |
400 min |
|
|
50 |
To 100 |
all |
345 min |
450 min |
|
50w |
To 100 |
all |
345 min |
485 min |
For quenched and tempered Grades HPS 50W [HPS 345W] and HPS 70W [HPS 485W], the heat treatment shall be performed by the manufacturer and shall consist of heating the steel to not less than 1650°F [900°C], quenching it in water or oil, and tempering it at not less than 1100°F [590°C]. The heat-treating temperatures shall be reported on the test certificates.
ASTM A709 Gr.36/Gr.50/Gr.50W Steel work / steel structure/steel machining parts testing equipment:calipers,pressure sensors, magnetic particle inspection machine, digital ultrasonic flaw detector, hydraulic universal testing machine, digital thickness gauge etc.
Katalor have our own processing factory and the pre- treatment factory, pre-treatment for shipbuilding steel (ball blasting , derusting,painting),surface pretreatment line on steel plates and profile steel. And we can also provide the customers our other processing services,like cutting,welding,drilling holes,galvanizing by the lowest cost price . If you need ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure/steel machining parts,please contact katalor.At the same time,as long as you have the drawings, we can customize ASTM A709 Gr.36/Gr.50/Gr.50W steel work/steel structure /steel machining parts for you!
