430FR Stainless Steel Machining

Stainless Steel Alloy 430 FR

Stainless steel alloy 430FR is a free-machining solenoid quality alloy, ideal for parts that require corrosion resistance and high electrical resistivity. It has excellent corrosion resistance in fresh water, gaseous, moderately acidic, and low chlorine environments. 430FR’s high silicon levels give it increased hardness, decreased deformation from impact, and increased magnetic characteristics.

430FR has a machining cost factor of 2.7 when compared to steel 12L14. It is not ideal for welding due to its high sulfur content, and does not respond to heat treatment. 430FR withstands moderate cold work and can be forged and annealed.

Industries & Applications

  • Solenoid valves
  • Injectors

Stainless Steel Parts Gallery

Stainless Steel 430 FR Characteristics

TEMPER

Yield Strength

Ultimate Tensile Strength

Modulus of Elasticity

Brinell Hardness (500kg/10mm)

Annealed (Grade 1)

45

81

32,000

160

 

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
Corrosion resistance and high electrical resistivity
430 FR
Excellent corrosion resistance in fresh water, gaseous, moderately acidic, and low chlorine environments
+.002 3 2.7

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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