What is the hardness of 300 series stainless steel?

What is the hardness of 300 series stainless steel?

300 Series Stainless Steel Alloys – 302, 304, 316….MECHANICAL PROPERTIES.

Cr – 16-18 Ultimate Tensile Strength psi – 90,000
Ni – 10-14 0.2% Offset Yield Strength psi – 40,000
Mo – 2-3 Percent Elongation in 2 inches – 50
Mn – 2.00 max Hardness Rockwell – B80
C – 0.08 max

Can 300 series stainless be hardened?

300-series stainless steels are the most popular examples of this type. Martensitic stainless steels can be hardened via heat treatment; how hard they can get depends on their carbon content. The more carbon these steels contain, the more hardenable they are.

What is 300 grade stainless steel?

300 Series stainless steels are classified as austenitic, and are hardenable only by cold working methods. These grades of stainless have chromium (approx. 18 to 30%) and nickel (approx. 6 to 20%) as their major alloying additions.

What is the hardness of stainless steel?

Table 1: Summary of mechanical properties for 304 steel.

Mechanical Properties Metric English
Ultimate Tensile Strength 505 MPa 73200 psi
Tensile Yield Strength 215 MPa 31200 psi
Hardness (Rockwell B) 70 70
Modulus of Elasticity 193-200 GPa 28000-29000 ksi

Can you quench hardened stainless steel?

Full hardness can be achieved through air-cooling at the austenitising temperature, but hardening larger sections may sometimes require oil quenching. Hardened components must be tempered immediately after cooling at room temperature, particularly if oil quenching has been used to prevent cracking.

What are the properties of 300 series stainless steel?

300 Series Stainless Steel. These grades of stainless have approximately 18% to 30% chromium and 6% to 20% nickel as their major alloying additions. This series of stainless steel alloys are known to resist corrosion while maintaining their strength at high temperatures. While the 304 grade is the most widely used alloy of all stainless steels,…

Which is the best grade of stainless steel?

The higher the level of Chromium and the addition of other elements, Nickel and Molybdenum, determine the grade of stainless steel and enhances the corrosion resistance of the stainless material. 18-8 SS, also know as the 300 series, is the most commonly suggested and used Stainless Steel on the market.

What’s the difference between 305 and 316 grade stainless steel?

Type 316 grade stainless steel is formulated from a similar makeup as the 305 grade (18-8) stainless steel. The Carbon is held to .08% maximum, while the percentage of Nickel used is increased slightly to roughly 14%. The main distinguishing factor that separates 316 from the 18-8 series is the addition of Molybdenum (a maximum of 3%)

What does the hardness of stainless steel mean?

Stainless steel hardness is usually defined as a property of the surface that represents how resistant the material is to indentation, scratch or wear.