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303 Stainless Steel Plate - ASTM A 895 - For Cutting and Machining


303 is austenitic free-machining stainless steel which is used primarily for parts requiring machining, grinding or polishing.  Alloy 303 was purposefully developed for ease of machining. The additional sulfur present in 303 assists in breaking up turnings which reduces drag on the cutting tool and increases machining speeds.  

This alloy offers good corrosion resistance in mild environments and good forming properties.  It is non-magnetic in the annealed condition and can only be hardened by cold working.  

 

Standard Inventory Specifications

  • UNS S30300
  • AMS 5640 Chem Only
  • ASTM A 895

Common Applications of 303 Stainless Steel Plate include:

  • Aircraft applications
  • Machine parts
  • Pump and valve parts
  • Architectural applications
  • Nuts and bolts

Inventory Size Range

  • Plate : 0.1875" - 4.000"

Please contact us for more details.

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

 

Chemical Composition of 303 Stainless Steel

Element

   

Chromium

17.0 min

19.0 max

Nickel

8.0 min

10.0 max

Carbon

0.15

 

Manganese

2.00

 

Phosphorus

 

0.20 max

Sulfer

0.15 min

0.35

Silicon

 

1.00 max

Molybendum

 

0.60 max

Physical Properties of 303 Stainless Steel

   

Density lb/inᶟ

0.290

Density g/cmᶟ

7.89

Melting Point

2552°F

Thermal Conductivity at 212°F (100°C)

112 BTU/hr/ft²/ft/°F

Thermal Conductivity at 212°F (100°C)

16.2 W/m-°K

Electrical Resistivity

28.3 Microhm-in at 68°C

Electrical Resistivity

72.0 Microhm-cm at 20°C

Mechanical Properties of 303 Stainless Steel

 

ASTM A 895

 

Yield Strength .2% Offset

psi (min) 45,000

(Mpa) 310

Ultimate Tensile Strength

Psi (min) 85,000

(Mpa) 586

Elongation in 2 in.

% (min) 50

 

Hardness

 

(max) 202 (HBN)

 


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