What Material is Astm A453 Gr.660A/Astm A194 Gr.8C?
ASTM A453 Gr.660A/ASTM A194 Gr.8C are American materials.
ASTM A453 Gr.660A is high-temperature alloy steel.
A194 Gr.8C is stainless steel, similar to 304 stainless steel.
What Is Cf8C?
CF8C is cast steel, a type of iron alloy.
Cast steel refers to the steel used exclusively in manufacturing steel castings.
When the casting of high strength requirements, the use of cast iron can not meet the criteria should be used cast steel.
However, the liquidity of cast steel is not as good as cast iron’s, so the casting structure’s thickness can not be too small, and the shape should not be too complex.
Silicon content control in the upper limit value can improve the fluidity of steel. Cast steel according to the varieties and uses can be divided into general engineering cast steel, welded structures with cast steel, stainless steel cast steel, and heat-resistant steel cast steel.
Characteristics of Cast Steel
Cast steel is an iron-carbon alloy material with a carbon content of less than 2.11%, with a carbon content of less than 0.2% belonging to low-carbon steel, between 0.2% and 0.5% belonging to medium-carbon steel, and higher than 0.5% belonging to high-carbon steel.
In addition, there are low alloy steel high manganese steel, and other types. Cast steel material’s comprehensive mechanical properties, compressive strength, and tensile strength are equivalent to the wall thickness change on the mechanical properties of the impact is very small, low vibration damping capacity.
Because of its wall thickness changes on the mechanical properties of small effect, it is suitable for the manufacture of large thickness parts, but because of the internal stress and warping characteristics of the larger, not for the manufacture of geometrically complex parts. Gas saturation tendency is greater, and the surface of the material is easy to produces flag bubbles, so the machining allowance is more than cast iron materials.
Although the cast steel material has high thermal stability, because of the thermal shrinkage, the temperature change is a very easy-to-crack phenomenon, so the design should emphasize the wall thickness uniformity, and corner rounding.
What Is Astm C809 Material?
This is a test standard. ASTM C809 Test Methods for Chemical Analysis, Mass Spectrometry, and Spectrochemical Analysis of Nuclear Grade Alumina and Alumina-Boron Carbide Synthetic Clusters
What Is the Material Of X90Crmov18?
Material number: 1.4112
Grade: X90CrMoV18
Standard: DIN 17400
Properties and Applications
X90CrMoV18 stainless steel, Germany DIN standard stainless steel. Corresponding to China’s 9Cr18MoV is martensitic stainless steel, commonly used for stainless steel blades, mechanical cutting tools, and scalpels.
Chemical Composition
| C | Si | Mn | P | S | Cr | Mo | V |
|---|---|---|---|---|---|---|---|
| 0.85~0.95 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | 17.00~19.00 | 0.90~1.30 | 0.07~0.12 |