ASTM A203 Grade E Boiler steel usually used to build domestic boiler, industrial boiler, and power station boiler. Boiler steel plates have the good strength.
ASTM A203 Grade E pressure containing parts chemical composition:
|
Grade |
C |
Mn |
P |
S |
Si |
Ni |
|
A203 Grade E |
0.20-0.23 |
0.88 |
0.025 |
0.025 |
0.13-0.45 |
3.18-3.82 |
ASTM A203 Grade E Boiler steel mechanical properties:
|
Grade |
Tensile Strength MPa (ksi)> |
Yield Strength MPa (ksi) |
% Elongation in 8 in.(200mm) min |
% Elongation in 2 in.(50mm) min |
|
A203 Grade E |
485-620 (70-90) |
275 (40) |
17 |
21 |
The maximum thickness of A203 Grade E pressure plates is limited only by the capacity of the composition to meet the specified mechanical property requirements, however, current practice normally limits the maximum thickness of A203 Grade E boiler plates furnished under 100 mm.
If approved by the purchaser for A203 Gr. E pressure containing parts, cooling rates faster than air cooling are permissible for improvement of the toughness, provided the plates are subsequently tempered at not less than 1100℉[595℃] for not less than ½ h.
Katalor has much experience exporting boiler plate in A203 Grade D to factory mill many years. Katalor welcomes our customer to visit in our mill.
