T-416 Pump Shaft Quality (PSQ)

Stainless Steel T-416 Pump Shaft Quality
  • This grade is heat treated, centreless ground and polished.
Typical Analysis
C Mn P S Cr Mo (opt.)
12/14 .60
  • T-416 is quite simply described as a free-machining modification of T- 410. The addition of phosphorus and sulphur is responsible for improved machinability, but results in some disadvantages such as lower impact values and poor weldability. However, the steel is designed for free- machining and it is the best of all the stainless steels. The rating is as high as 90% - 160 surface feet per minute.
  • T-416 is mainly supplied in the annealed condition; but it responds to conventional heat treatment and a wide range of mechanical properties may be obtained. It is magnetic in all conditions.
Typical Applications
  • T-416 is used in all appIications demanding the mechanical properties and corrosion resistance of T-410 - plus the free machining. Pump shafts, pistons, valves, automatic screw machined parts, nuts, bolts, studs.
Corrosion and Heat Resistance
  • Maximum resistance is obtained by hardened material, ground and polished. Excellent resistance to fresh water, mild alkalis and acids, dry atmospheres, neutral and basic salts. Fair resistance to scaling up to 675℃ in continuous service.
Mechanical Properties
  • 100,000 psi minimum tensile strength
  • 85,000 psi minimum yield
  • 15% minimum elongation (in 2")
  • 45% minimum reduction of area (R/A)
  • 207-248 Brinell hardness
  • Straightness Tolerance – 0.0015" per foot
  • Maximum out-of-round – 1/2 total diameter tol.
  • Diameter Tolerance:
      Size Tolerance
      .750"-.999" +0/- 0.0020"
      1.000"-1.4375" +0/- 0.0025"
      1.4376"-4.000" +0/- 0.0030"

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