PRODEC® 17-4

PRODEC® (PRODuction EConomy), is a special quality of austenitic stainless steel. The uniformity and optimal machinability of PRODEC allows fabricators to machine at higher speeds and feeds, producing superior quality parts at the lowest total cost. It should be considered for automatic screw machines where extensive machining is required.

PRODEC 17-4 is a newly developed enhanced machining version of 17-4 stainless PH. Trials have shown PRODEC 17-4 to provide up to 30% faster machining speeds without sacrificing tool life when compared to standard 17-4. This enhanced machinability is a result of the PRODEC melting process which reduces the quantity, size, and distribution of hard oxide inclusions. As a result, improved machining properties are realized in all heat treated conditions (Condition A, H1150, H1025, etc.) PRODEC 17-4 round bar is produced in diameters ranging from 9/16" to 6-1/2".

17-4 is also commonly referred to as type 630 stainless. It is a martensitic, precipitation hardening stainless steel. A low temperature heat treatment can provide unusually high strength and hardness, with corrosion resistance similar to that of Type 304 austenitic stainless steel.

Chemistry

NiCrMoMnCuSiCCb+TaSPFe
MIN 3.0 15.0 - - 3.0 - - 5 x C - - -
MAX 5.0 17.5 0.50 1.0 5.0 1.0 0.07 0.45 0.03 0.04 balance

Specifications

AMS 5643
ASME SA 564
ASTM A 564
UNS S17400

Inventory

PRODEC® 17-4 Plate, PRODEC® 17-4 Round Bar, PRODEC® 17-4 Weld Wire

Common Trade Names

17-4 Stainless

Features

  • Melted and processed to maximize machinability
  • Improved machinability over 17-4

Applications

  • Automatic screw machines

Physical Properties

Density: 0.282 lb/in3 Melting Range: 2560-2625°F Poisson's Ratio: 0.272 Electrical Resistivity: 463 Ohm-circ mil/ft

Mechanical Properties

Condition Tensile Strength, ksi 0.2% Yield Strength, ksi Elongation in 2 in, % Reduction of area, % Hardness, Rc Charpy V-Notch Impact Strength, ft. lb.
H900 198 183 15 52 44 16
H1025 168 162 16 58 38 40
H1075 164 148 17 59 36 46
H1150 144 126 20 60 33 55
H1150M 123 87 22 66 29 110
H1150D 150 110 20 60 29 50

Machining