SA204GrC steel plate properties and applications

SA204GrC steel plate properties and applications

1. Introduction to SA204GrC steel plate SA204GrC is a molybdenum alloy steel plate for pressure vessels.
2. SA204GrC steel plate implementation standard: SA-204/SA-204M standard (completely equivalent to ASTM standard A204/A204M-12)
3. SA204GrC steel plate general requirements and ordering instructions
1. The materials supplied according to this standard shall meet the requirements of A20/A20M standard. These requirements include methods and procedures for testing and retesting, permissible deviations in size and weight, repair of quality and defects, marking and loading, and ordering information.
2) In addition to the basic requirements specified in this standard, a number of supplementary requirements can be adopted when more control, testing or inspection is required to meet the requirements of the final use. The purchaser shall refer to the additional requirements listed in this standard and the detailed requirements in the A20/A20M standard.
3) If the requirements in this standard are inconsistent with the requirements in the A20/A20M standard, the requirements in this standard shall prevail.
4. SA204GrC steel plate delivery status: thickness less than or equal to 40mm, usually delivered in rolling state, can also be normalized, stress relief treatment normalizing plus stress relief treatment supply. Steel plates with a thickness greater than 40mm should be normalized.

Chemical composition

Tabulation: Depu Steel Date: 2024-01-18

C	Si	Mn	P	S	Mo
≤0.23	0.15-0.40	≤0.90	≤0.025	≤0.025	0.45-0.60

Note:
(1): In order to improve the properties of steel, the number of other trace alloying elements other than the above table can be added; It comes from the Internet 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 SA204GrC steel plate application scope SA204GrC steel plate Use: It is often used in petroleum, chemical, boiler container and other industries to manufacture reactors, spherical tanks, separators, boiler drums and other equipment and structural parts.
SA204GrC steel plate cutting: steel plate cutting refers to the process of using natural gas flame (oxygen-natural gas) to preheat the cut metal to a point where it can burn violently, and then release a high-pressure oxygen flow to further oxidize the metal violently and blow off the slag produced by combustion to form a cut.
Steel plate cutting methods include flame cutting, laser cutting, wire cutting, shearing machine, plasma cutting, ultra-high pressure water cutting and other methods, the cost of flame cutting equipment is low and is a cost-effective means of cutting thick metal plates, but it has its shortcomings in thin plate cutting. So thick plates are generally cut with flames.