What type of material is 17-4 PH?
martensitic stainless steel
Alloy 17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance. The alloy is furnished in the solution annealed condition (Condition A).
What is condition H1150?
Stainless steel 17-4 H1150 is stainless steel grade 17-4, also known as 630 alloy, that has been heat treated at a temperature between 1140° F and 1160° F for 3.75 hours to 4.25 hours. The steel will become softer than it is in the annealed condition after being treated at such a high temperature.
Will 17-4 PH rust?
The martensitic PH stainless grades like 17-4 and 15-5 will also rust. Note that Alloy 36 (36% NI, balance iron) will readily rust. It is not a stainless steel, since it has no chromium. These alloys are commonly delivered from the mill with a light rust or dark oxide on the surface.
What is 17-4 PH condition A?
17-4 PH is a martensitic precipitation hardening (age hardening) stainless steel that can provide both high strength and excellent corrosion resistance. In the annealed (solution treated condition- Condition A) the density of this material is 0.280 lb/in^3.
What is the difference between H1150 and HH1150?
HH1150 Condition A material heated 4 hours at 1150°F, air cooled, heated again for an additional 4 hours at 1150°F and air cooled. H1150-M Condition A material heated at 1400°F + 25°F for 2 hours, air cooled, then heated at 1150°F + 15°F for 4 hours and air cooled.
Does 17-4 PH work harden?
In the hardened condition 17-4 will not work harden significantly. I presume that you heat treat first since you need tighter dimensional tolerance than you can get with post-machining heat treatment.
How do you heat treat 17 4PH?
The ATI 17-4™ precipitation hardening stainless steel is furnished in the annealed condition. This is also called the solution heat treated condition, or Condition A. Annealing is conducted by heat treating at approximately 1900°F (1040°C) to 1950°F (1065°C) and cooling to room temperature.
What does the PH stand for in 17 4ph?
PH stainless steels are a group of alloys that are resistant to the effects of corrosion. To increase their yield strength, these alloys are subjected to heat treatment during precipitation hardening (PH) or age hardening.
What are the properties of 17-4PH stainless steel?
As a martensitic precipitation hardening stainless it is characterised by high tensile strength and high yield strength obtained by solution annealing, followed by a single or double low temperature age hardening treatment. 17-4PH has corrosive properties comparable to 304 austenitic stainless steel in many environments.
What are the mechanical properties of alloy 17-4PH?
17-4PH combines high strength and hardness with good corrosion resistance. The alloy is furnished in the solution annealed condition (Condition A). It should not be used at temperatures above 572°F (300°C) or for cryogenic service. Optimal mechanical properties can be obtained by subjecting the alloy to age hardening heat treatments.
What kind of Cres does a 17-4 bar have?
17-4 Stainless Steel Bar – 17-4PH CRES Condition A Round Bar Supplier | TW Metals 17-4 ph Stainless Steel Bar 17-4 is a chromium-nickel-copper precipitation hardening stainless steel used for applications requiring high strength and moderate level of corrosion resistance.
Which is better corrosion resistance 304 or 17-4PH?
With better corrosion resistance to standard hardenable stainless grades such as 431, 420 and 410. 17-4PH has corrosion resistance comparable to 304 stainless specification. Welding. 17-4PH requires similar arc and resistance welding processes to those used on standard specifications of stainless steel.