Astm a283 CARBON STEEL PLATE
Mild steel is a type of carbon steel with a low amount of carbon – it is actually also known as “low carbon steel.” Mild steel is not an alloy steel and therefore does not contain large amounts of other elements besides iron; you will not find vast amounts of chromium, molybdenum, or other alloying elements in mild steel. Less carbon means that mild steel is typically more ductile, machinable, and weldable than high carbon and other steels, however, it also means it is nearly impossible to harden and strengthen through heating and quenching. The lack of alloying elements such as those found in stainless steels means that the iron in mild steel is subject to oxidation (rust) if not properly coated. It is the affordability, weldability and machinability that make it such a popular choice of steel for consumers.
A283 Grade C is a kind of common carbon steel material with low or mid-low tensile . They are four grades or levels in the standard ASTM A283,they are GR A/B/C/D.carbon structural steel plate A283 Grade C are mainly used in heavy industry and oil plants for built steel tanks and vessels.It is good in welding and economic for useage.
EQUIVALENT GRADE OF ASTM 283 Grade C
ASTM
|
Germany DIN
|
China GB
|
Japan JIS
|
A36 |
ST37-2 |
Q235 |
SS400 |
CHEMICAL COMPOSITION
Element |
Carbon,C |
Copper,Cu |
Manganese,Mn |
Ohosphorous,P |
Silicon,Si |
Sulfur,S |
A283 Grade A |
0.14%Max |
0.20%Max |
0.90%Max |
0.035%Max |
0.15~0.40% |
0.04%Max |
A283 Grade B |
0.17%Max |
0.20%Max |
0.90%Max |
0.035%Max |
0.15~0.40% |
0.04%Max |
A283 Grade C |
0.24%Max |
0.20%Max |
0.90%Max |
0.035%Max |
0.15~0.40% |
0.04%Max |
A283 Grade D |
0.27%Max |
0.20%Max |
0.90%Max |
0.035%Max |
0.15~0.40% |
0.04%Max |
HEAT TREATMENT
It can be heat treated at the following temperatures:
- Normalizing at 899°C – 954°C (1650°F-1750°F)
- Annealing at 843°C – 871°C (1550°F-1600°F)
- Stress relieving at 677°C – 927°C (1250°F-1700°F)
- Carburizing at 899°C – 927°C (1650°F-1700°F)
- Hardening at 788°C – 816°C (1450°F-1500°F)