SA203GrD Ultra-Low Temperature Container Plate
SA203GrD steel plate belongs to ultra-low temperature container plate, which is a kind of low nickel alloy steel plate.
SA203Gr steel plate is divided into five grades: A, B, D, E, F, because the nominal nickel content of the three grades of D, E and F is 3.5%, commonly known as 3.5Ni steel.
SA203GrD steel plate has good impact toughness and mechanical properties in low temperature working conditions, and can be used in low temperature environment of -70°~-101° (adjusted to -107°), and is often used in cryogenic separation and processing, air separation, liquefied gas storage, coal chemical and other industries to manufacture CO2 absorption towers, H2S absorption towers, methanol scrubbers and other equipment
| Chemical composition |
| Tabulation: Depu Steel Date: 2024-01-18 |
| C |
Mn |
P |
S |
Si |
Ni |
| ≤0.23 |
≤0.88 |
≤0.025 |
≤0.025 |
0.13-0.45 |
3.18-3.82 |
Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions
of GB/T222 SA203GrD steel plate delivery status and production process
delivery status: normalizing, positive + return, quenching and tempering.
Production process: heat treatment, SA203 steel is calm steel.
SA203GrD steel plate implementation standard: SA203GrD steel plate is American standard steel plate, and the American standard ASME A20/A20M standard is implemented.
Detailed specifications of SA203GrD steel plate: specifications: thickness: 8-110mm, width: 1600-4020mm, length:
6000-18800mm.
SA203GrD steel plate application range: it is widely used in the production and processing of cryogenic separation processing, air separation, liquefied gas storage equipment manufacturing and processing, over the years, the domestic coal chemical project CO2 absorption tower, H2S absorption tower, H2S concentration tower, methanol scrubber and other low-temperature large-scale equipment use a large number of this kind of materials to produce and manufacture, the maximum thickness currently used is 110mm. The delivery status of SA203GrD steel plate is generally normalized, normalized plus tempered or quenched and tempered.
