316 Stainless Steel Machining

Stainless Steel Alloy 316

Stainless steel alloy 316 is an extremely popular alloy, ideal for parts that require heat and corrosion resistance. It has very similar properties to 304, but possesses an even higher corrosion resistance, making it suitable for laboratory, medical, and marine environments. 316 is not magnetic.

316 has a machining cost factor of 5.6 when compared to steel 12L14. It is recommended for welding and hot forming capabilities are fair. 316 can be readily cold worked, but annealing afterwards is recommended to remove stresses.

Industries & Applications

  • Bolts and nuts
  • Valve components
  • Laboratory equipment
  • Marine equipment

Stainless Steel 316 Characteristics

TEMPER

Yield Strength

Ultimate Tensile Strength

Modulus of Elasticity

Brinell Hardness (500kg/10mm)

Annealed

35

84

29,000

180

1/2 Hard

130

170

29,000

130

1/4 Hard

86

140

29,000

130

 

Stainless Steel Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Stainless Steel
Better corrosion resistance
316
Medical implants and surgical instruments, aerospace
Cold finished
+/-.002
4.3 5.6

Common Material Cost Comparison

Type General Characteristics Alloy Common Applications Tolerances for a 1/2" Dia. Bar Material Cost Factor Machining Cost Factor
Steel
Designed for excellent machinability. Case hard only
12L14
Endless commercial products; probably more pounds used in turned products than any other bar stock
Cold drawn
0
1 1
Stainless Steel
Designed for machining, non-magnetic
303
Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistance
Cold finished
+/- .002
1.9 2.7
Brass
Strength, corrosion and wear resistance, and excellent machinability
C35300
Well suited for parts with knurling or threading
+0015 3.5 .07
Aluminum
Designed for machining
2011
Electronic hardware, endless commercial products
Cold finish
+/-.0015
3.8 .6
Titanium
High strength, light weight, good bio-compatibility
Ti-6Al-4VEli
Medical implants
Ground & polished
+/-.002
30.2 6

To review our Machining Materials Guide, please click here.

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