303 stainless steel plate is an industrial product for applications requiring easy cutting and high surface finish.
introduce
Application: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries!
Quality management :ISO9001:2000 quality management system certification, production license, etc.
303 is a free-cutting stainless steel containing sulfur and selenium, respectively. 303 stainless steel improves cutting performance and resistance to high temperature bonding. Most suitable for automatic lathes. Bolts and nuts.
303 stainless steel is Austenitic type easy cutting rust wear-resistant acid steel, in order to improve the performance of the steel, can be added to the steel no more than 0.60% molybdenum, corrosion resistance, good product machinability and burn resistance. Corrosion resistance.303 Mechanical properties of stainless steel after annealing stress removal, tensile strength 515MPa, yield 205MPa, elongation 40%. Standard hardness of stainless steel 303 HRB 90-100, HRC 20-25, note :HRB100 = HRC20
Chemical composition
Chemical composition (%):
C :≤0.15
Si :≤1.00
Mn :≤2.00
P :≤0.20
Sulfur S :≥0.15
Chromium Cr :17.00-19.00
Nickel Ni :8.00-10.00
Mechanical property
Tensile strength σb (MPa):≥520
Conditional yield strength σ0.2 (MPa):≥205
Elongation δ5 (%):≥40
Section shrinkage (%):≥50
Hardness :≤187HB; ≤90HRB; ≤200HV
Heat treatment process
● Heat treatment specifications and metallographic structure:
Heat treatment specification: Solution 1010~1150℃ fast cooling.
Metallographic structure: The structure is characterized by Austenitic type.
● Delivery status: generally delivered in heat treatment state, and the type of heat treatment is indicated in the contract; If not indicated, delivery in non-heat treatment condition.
