17-4PH - UNS S17400

 

17-4PH (UNS S17400) is an Age Hardened Martensitic Stainless Steel with excellent machinability and good corrosion resistance.  The material can be hardened to different strength levels to accommodate the specified requirements of the designed component. vSM stocks multiple conditions of 17-4 including the H1150M and DH 1150 for NACE service.

 

17-4PH Specification/Condition

• Stocking the following conditions
  • Annealed
  • H900
  • H1025
  • H1075
  • H1150M NACE
  • DH1150 NACE

Applications

• valves
• pump shafts
• rotors

17-4PH technical data

• UTS (KSI): 135 Min
• Yield 0.2% Offset (KSI): 110 Min
• EL (% Min): 18
• RA (% Min): 55
• Hardness (HRC): 28-32
• Charpy Impact Min. ft-lbs: 20 @-75°F

Dimensions

• 0.5 – 15.0 in

17-4PH Chemical composition (Wt %)

 

Carbon (C)	Manganes (Mn)	Phosphorus (P)	Sulfur (S)	Silicon (Si)	Nickel (Ni)	Cobalt (Co)
0.07 Max	1.00 Max	0.040 Max	0.030 Max	1.00 Max	3.0-5.0	–

 

Chromium (Cr)	Manganese (Mo)	Niobium + Tantalum (Nb (Cb) + Ta)	Titanium (Ti)	Copper (Cu)	Aluminum (Al)	Iron (Fe) & Others
15.0-17.5	–	0.15-0.45 Max	–	3.00-5.00	–	Fe– Balance