301-1/2 Hard Tempered Stainless Steel Sheet & Coil - AMS 5518

301 1/2 Hard Stainless
301 1/2 Hard Stainless

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Explaining The Differences Between Stainless Steel 304 and 316

301-1/2 Hard is an austenitic stainless steel that it has been cold rolled to its 1/2 hard condition. This makes it ideal for applications requiring both formability and tensile strength of 150,000 PSI and yield strength of 110,000 PSI.

301-1/2 Inventory Size Ranges

Sheet & Coil

0.010" - 0.098"

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Custom Engineered Strip

0.0008" - 0.012"

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Standard Inventory Specifications

  • UNS S30100
  • AMS 5518
  • ASME SA 666

Other industry standards we comply with:

  • EN 1.4310
  • PWA-LCS
  • GE Aircraft Engine (GT193)
  • GE Aviation S-SPEC-35 AeDMS S-400
  • RR SABRe Edition 2
  • DFARS Compliant

Common Trade Names

  • ATI 301 (™ Allegheny Technologies)

Common Applications of 301-1/2

  • Aircraft structural parts
  • Trailer bodies
  • Architectural (roof drainage/door frames, etc.)
  • Auto body trim and wheel covers
  • Utensils and tablewear
  • Conveyor parts
301-1/2 Hard Chemical Composition
Element Percent by Weight
C Carbon 0.15 maximum
Mn Manganese 2.00 maximum
P Phosphorus 0.045 maximum
S Sulfur 0.03 maximum
Si Silicon 1.00 maximum
Cr Chromium 16.00 - 18.00
Ni Nickel 6.00 - 8.00
N Nitrogen 0.10 maximum

301-1/2 Hard Stainless Steel Physical Properties

  • Melting Range: 2250-2950°F (1399-1421°C)
  • Density: 0.2850 lb/in3 (7.88 g/cm3)
  • Specific Gravity: 8.03
  • Modulus of Elasticity in Tension: 28 x 106 psi (193 GPa)*

* In the cold worked condition, the modulus is lowered.

Linear Coefficient of Thermal Expansion
Temperature Range Coefficients
°C °F cm/cm°C in/in/°F
20-100 68-212 16.6 x 10-6 9.2 x 10-6
20-300 68-572 17.6 x 10-6 9.8 x 10-6
20-500 68-932 18.6 x 10-6 10.3 x 10-6
20-700 68-1292 19.5 x 10-6 10.8 x 10-6
20-871 68-1600 19.8 x 10-6 11.0 x 10-6

Thermal Conductivity
Temperature Range Coefficients
°C °F W/m·K Btu/(hr/ft²/in/°F)
20-100 68-212 16.3 9.4
20-500 68-932 21.4 12.4

 

Specific Heat
Temperature Range J/kg°K Btu/lb/°F
°C °F
0-100 32-212 500 0.12

Magnetic Permeability

H/m Annealed 1.02 Max @ 200 H

Electric Resitivity
Temperature Range microhm-cm microhm-in
°C °F
20 68 72 28.3
100 212 78 30.7
200 392 86 33.8
400 752 100 39.4
600 1112 111 43.7
800 1472 121 47.6
900 1652 126 49.6

Mechanical Properties and Yield Strength of 301-1/2 Hard 

 
Condition Tensile Strength, Min. 0.2% Yield Strength, Min. Elong. In 2" (50mm)
Ksi MPa Ksi MPa %, Min.
Annealed 75 515 30 205 40
1/4 Hard 125 862 75 517 25
1/2 Hard 150 1034 110 758 18*
3/4 Hard 175 1207 135 931 12*
Full Hard 185 1276 140 965 9*

* Value shown for thickness greater than 0.015 in. (.038mm).

*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.