heat-resistant steel casting
Material name: heat-resistant steel casting
Brand number: ZG40Cr25Ni20
Standard: GB 8492-87
● Characteristics and scope of application:
The highest use temperature is 1150℃, with high creep and lasting strength, and strong resistance to high temperature gas corrosion ability. It is often used for furnace roll, radiation pipe, billet skateboard, heat treatment furnace roll, pipe support, light conversion pipe, ethylene crack pipe and parts requiring high creep strength.
● chemical composition:
Carbon C: 0.35~0.45 Silicon Si: 1.50 manganese Mn: 1.75 sulfur S: 0.04
Phosphorus P: 0.04 Chromium Cr: 23.0~27.0 Nickel Ni: 19.00~22.00
Molybdenum Mo: 0.50
● mechanical property:
Tensile strength σ b (MPa): 440
Condition yield strength σ 0.2 (MPa): 235
Elongation rate δ (%): 8
● Heat treatment specification and metallographic organization:
Heat treatment specification: the castings shall not undergo heat treatment, and shall be agreed by both parties if necessary.
● condition of delivery:
as cast condition
SUS314 Corresponding to the national standard of 0Cr25Ni20Si2
characteristic:
SUS314 Belongs to the austenitic type heat resistant corrosion resistant stainless steel material, with all the properties of austenitic stainless steel, also has strong high temperature resistance, so also known as the representative of heat resistant steel, because it contains 2% silicon element, so for the advanced engineering (chemical equipment, acid high temperature environment) the preferred stainless steel material. Application: heat treatment industry, cement manufacturing and other industries indispensable metal materials.
US314 stainless steel
SUS314 It belongs to austenitic stainless steel, and the chemical composition is:
C Max：0.25%； Mn Max：2.00%； P Max：0.045%； S Max：0.030%；
Si：Max：1.50－3.00%； Cr：23.00－26.00%； Ni：19.00－22.00%。
