Stainless Steel
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Table of Contents Introduction
Forms
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Introduction
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
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 |
|
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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 |
|
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Typical Physical Properties
| Density |
|
0.285 lbs/cu in |
| Melting Point |
|
1420 °C |
| Electrical Resistivity @ RT |
|
72 Microhm-cm |
| Thermal Conductivity @ 100°C
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|
16.3 w/m-k |
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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.
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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 |
|
|
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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.
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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% |
|
|
|
|
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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 |
|
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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 |
|
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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 Standard Dimensions and Tolerances page for general size ranges of
products. If you do not see your required size list contact us via
email
or phone for further information or assistance. |
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