Stainless Steel

There are various forms of stainless steels and we will briefly discuss the most common alloys produced by H. Cross Company. If the specific alloy you require is not listed contact us as we will fabricate your material or if the required quantity is large enough we can purchase and fabricate the material for you.

Type 302 Stainless Steel
Type 304 Stainless Steel
Type 316L Stainless Steel

Type 302 Stainless Steel

Chemistry % by Weight

C 0.15% Max Mn 2% Max P 0.45%
Cr 17-19% N 0.1% Max S 0.03%
Fe Balance Ni 8-10% Si 0.75% Max

Typical Mechanical Properties

Ultimate Tensile Strength 74,000 PSI Minimum
Yield Strength 29,500 PSI Minimum
Elongation @ Break 40%
Modulus of Elasticity 29,000 KSI

Typical Physical Properties

Density 0.285 lbs/cu in
Melting Point 1420 °C
Electrical Resistivity @ RT 72 Microhm-cm
Thermal Conductivity @ 100°C 16.3 w/m-k

This alloy is the most frequently used in the stainless steel family. It is best used in applications that require resistance to corrosion, product contamination and oxidation. It is easily fabricated, has excellent formability, is easily cleaned, has high strength with low weight and is available in many product forms. The various forms H. Cross Company can supply are listed below. Typical applications for the material include the food and beverage industry, cryogenics, and pressure containing. Type 302 is preferred to type 304 for as rolled product since its higher carbon content allows for meeting yield and tensile requirements while holding a higher level of ductility.

Type 304 Stainless Steel

Chemistry % by Weight

C 0.08% Max Mn 2% Max P 0.045%
Cr 18-20% N 0.1% Max S 0.03%
Fe Balance Ni 8-10.5% Si 0.75% Max

Typical Mechanical Properties

Ultimate Tensile Strength 74,500 PSI Minimum
Yield Strength 29,500 PSI Minimum
Elongation @ Break 40%
Modulus of Elasticity 29,000 KSI

Typical Physical Properties

Density 0.285 lbs/cu in
Melting Point 1421° C
Electrical Resistivity @ RT 72 Microhm-cm
Thermal Conductivity @ 100° C 16.3 W/m-K

Type 304 stainless steel is probably the second most used and familiar of the stainless steel family. It is used in many of the same applications that the type 302 stainless steel is used and in fact many past users of type 302 stainless steel are now using type 304 since technology has made lower carbon levels more easily attainable and economical.

Type 316L Stainless Steel

Chemistry % by Weight

C 0.03% Mo 2-3% P 0.045%
Cr 16-18% N 0.1% S 0.03%
Fe Balance Ni 10-14% Si 0.75%
Mn 2%

Typical Mechanical Properties

Ultimate Tensile Strength 70,000 PSI Minimum
Yield Strength 24,500 PSI Minimum
Elongation @ Break 40% Minimum
(Annealed Temper)
Modulus of Elasticity 29,000 KSI

Typical Physical Properties

Density 0.29 lbs/cu in
Melting Point 1440°C
Electrical Resistivity @ RT 74 Microhm-cm
Thermal Conductivity @ RT 14.6 W/m-K
Maximum Service Temp (Air) 900° C

Type 316L stainless steel in a molybdenum bearing austenitic that is more resistant to general corrosion and pitting than conventional nickel chromium stainless steels such as 302-304. This alloy also has a higher creep resistance, rupture strength and tensile strength at elevated temperatures. In addition to the excellent corrosion resistance and tensile strength properties it still has excellent formability. In addition to these alloys H. Cross Company can also supply material in type 347 and type 420 (Martensitic) Stainless steels.

Forms

H. Cross Company can provide all stainless steels in wire, ribbon, strip, sheet and foil sizes to suit your particular needs. Please refer to our Typical Dimensions and Tolerances page for general size ranges of products. If you do not see your required size list Contact Us by email or phone for further information or assistance.