Introduction to the chemical composition and mechanical properties of SA203GrE American standard low

Introduction to the chemical composition and mechanical properties of SA203GrE American standard low

1. Introduction to
SA203GrE steel plate 1. SA203GrE steel plate is a flat steel made by pouring molten steel and pressing it after cooling. The steel plate is flat, rectangular and can be rolled directly or sheared from a wide strip of steel.
2. The steel plate is divided according to the thickness, the thickness of the thin steel plate is 4~60 mm, and the thickness of the steel plate is 60~115 mm.
3. SA203GrE is an American standard cryogenic container steel plate, and SA203 is a low-nickel alloy steel, including five grades: A, B, D, E, and F. Among them, D, E and F have a nominal nickel content of 3.5%, commonly known as 3.5Ni steel. It is usually used in the low temperature environment of -70~-101. SA203GrE corresponds to the domestic material 08Ni3DR4, SA203GrE steel plate grade: "SA": means that the steel plate is the American standard container plate;
"203": indicates that the yield strength of the steel plate is 203MPa; "Gr": an abbreviation for "Green"; "E": indicates the quality grade of the steel plate; "E" indicates that the steel plate is subjected to a -40° impact test.
5. SA203GrE steel plate implementation standard: ASME A20/A20M.
6. SA203GrE steel plate delivery status: the steel plate is delivered in the state of normalizing, positive + returning, quenching and tempering, and the delivery status can also be specified according to the technical requirements.
7. SA203GrE steel plate thickness direction performance requirements: Z15, Z25, Z35. 8. SA203GrE steel plate flaw detection requirements: one probe, two probe, three probe.
9. SA203GrE steel plate density: 7.85/cubic meter.
10. SA203GrE steel plate weight adjustment formula: thickness * width * length * density.
11. Conventional size of SA203GrE steel plate: 8-120mm*2000-2200mm*8000-10000mm
 

Chemical composition

Tabulation: Depu Steel Date: 2024-01-18

C	Si	Mn	P	S	Ni
≤0.20	0.15-0.40	≤0.70	≤0.025	≤0.025	3.25-3.75

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 conform to the provisions of
GB/T222 SA203GrE steel plate mechanical properties: Grade:
SA203GrE
tensile strength σb (MPa): 485-620MPa;
Yield strength σ0.2 (MPa): ≥275MPa;
Gauge 200mmElongation A(%):≥17%Gauge 50mmElongation A(%):≥21%