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Formula: Fe/Cr 18/Ni 9/Ti
Form: Foil (Light Tight)
Material: AISI 321 Stainless Steel
Commodity: Alloys
Light Tight:
Light Tight
AISI 321 Stainless Steel Foil (Light Tight), also known as UNS S32100, is a titanium-stabilized austenitic stainless steel renowned for its excellent resistance to intergranular corrosion and high-temperature oxidation. This specialized foil is designed to block light transmission, making it ideal for applications where light sensitivity is critical. Its light-blocking properties are essential in electronics for shielding sensitive components from light-induced degradation. In aerospace, it is used in enclosures for optical instruments, ensuring accurate measurements. Additionally, it protects light-sensitive diagnostic equipment in the medical field and is used in manufacturing containers for pharmaceuticals. The foil’s ability to maintain mechanical properties at elevated temperatures makes it suitable for high-temperature applications where blocking light is essential. Goodfellow offers premium AISI 321 Stainless Steel Foil (Light Tight) that meets stringent industry standards, ensuring optimal performance.
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 160-190 |
| Elongation at break( % ) | <60 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 560 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-73 |
| Temperature coefficient( K⁻¹ ) | - |
Thermal Properties
| Element | Value |
|---|---|
| Maximum use temperature in air( C ) | 800 |
| Melting point( C ) | 1400-1425 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 16.3@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 18@20-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 7.9 |
Other Customers Purchased
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Waspaloy® Foil Formula: Ni58/Cr19/Co14/Mo/Ti/Al/Fe
Temper: Annealed
Thickness: 0.25mm
Length 1: 100mm
Length 2: 100mm
UOM Code: 558-637-81
eachStarting at $186.92
Discounts applied for volume purchases -
X-ray Quality Rhodium Foil Grade: X-ray Quality
Formula: Rh
Percentage Purity: 99.9%
Temper: As Rolled
Thickness: 0.025mm
Length 1: 10mm
Length 2: 10mm
CAS Number: 7440-16-6
UOM Code: 464-926-09
eachStarting at $673.56
Discounts applied for volume purchases -
Ytterbium Foil Formula: Yb
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-64-4
UOM Code: 000-446-82
eachStarting at $239.48
Discounts applied for volume purchases -
Zirconium Foil Formula: Zr
Percentage Purity: 99.2%
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-67-7
UOM Code: 004-371-61
eachStarting at $165.58
Discounts applied for volume purchases -
Zinc Foil Formula: Zn
Percentage Purity: 99.9%
Thickness: 0.0025mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-66-6
UOM Code: 013-016-12
eachStarting at $152.18
Discounts applied for volume purchases -
Yttrium Foil Formula: Y
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.1mm
Length 1: 50mm
Length 2: 50mm
CAS Number: 7440-65-5
UOM Code: 117-129-99
eachStarting at $235.38
Discounts applied for volume purchases
