What type of material is 17-4?
What type of material is 17-4?
17-4 PH Stainless Steel is a precipitation hardening martensitic stainless steel. Typical usage is seen in applications requiring high strength and a modest level of corrosion resistance. Strength and toughness desired can be manipulated by temperate range in the heat treatment process.
Does 17-4 need to be heat treated?
The ATI 17-4™ precipitation hardening stainless steel is readily welded using conventional inert gas methods used for stainless grades. Preheating is not usually required. Postweld heat treating is needed to produce the various precipitation hardened heat treatment properties.
What is the difference between 17-4 and 316 stainless steel?
316 is typical austenite stainless steel casting grade, while 17-4 PH stainless steel is precipitation hardening material grade, which are all defined in American standards. When you compare Stainless Steel 17-4 ph vs 316 for casting, it is obvious that 17-4 PH has the higher hardening content.
What is the hardness of 17-4 H900?
17-4 PH Stainless Steel Properties
| Condition | Ultimate Tensile Strength (PSI) | Hardness Rockwell |
|---|---|---|
| H900 | 190,000 | C40 |
| H1025 | 155,000 | C35 |
| H1075 | 145,000 | C32 |
| H1150 | 135,000 | C28 |
Will 17 4PH rust?
The corrosion resistance of Alloy 17-4PH is comparable to 304 stainless steel in most environments, and is generally superior to the 400 series stainless steels. It is used in applications where the combination of moderate corrosion resistance and unusually high strength are required.
How hard is H1150?
It is one of the most widely used precipitation hardening grades, as it has high strength hardness up to about 572°F while demonstrating good corrosion resistance in all heat treated conditions….Machinability:
| Heat Treated Condition | H1150 |
|---|---|
| Thermal Conductivity, BTU/hr/ft^2/in/°F | |
| 300°F | – |
| 500°F | – |
| 860°F | – |
How do you heat treat 17 4 steel?
Age hardening of 17–4 PH usually consists of two steps: solution treatment followed by quenching and subsequent aging for precipitation hardening. For 17–4 PH, the solution treatment is done at 1050 °C for 30 min while the aging temperatures range from 480 °C to 760 °C with a duration of two to four hours.
Is 17 4PH stainless steel magnetic?
Its intense tensile strength keeps its ductility and hardness at temperatures at nearly 600°F, while still demonstrating exceptional corrosion resistance in all conditions offered by Premium Alloys. Just as all martensitic metals, 17-4 is magnetic.
Can you heat treat 17-4 stainless steel?
Stainless Steel Type 17-4 PH® 17-4 PH® is a martensitic precipitation hardening stainless steel offering high strength and hardness along with moderate corrosion resistance up to 600˚F. It has good fabrication characteristics and can be age hardened using a single heat treatment in the 900-1150˚F temperature range.
Is 17 4ph stainless steel magnetic?
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.
What is the hardness of 17 4 annealed?
Alloy 17-4PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F /300°C), and corrosion resistance. Mechanical properties can be optimized with heat treatment.
What does H900 mean?
Typical heat treat designations are H900 or H1075; where H900 indicates aging at 900°F for one hour and H1075 indicates ageing at 1075°F for 4 hours. In all cases, it is important to start with material that is in the solution treated condition or more commonly called Condition A.
Will 17-4PH rust?
Can you heat treat 17 4 stainless steel?
How do you heat treat 17-4 stainless steel at home?
The recommended heat-treatment of 17-4 PH stainless steel is as follows: Solution treatment is performed at 1040 °C for 1 h followed by water quenching. subsequently, aging could be conducted at low temperatures followed by air cooling to enhance precipitation and the relevant mechanical properties.
How do you heat treat 17-4 steel?
How hard can you heat treat 17-4?
What is the hardness of 17-4 stainless steel?
The mechanical properties of annealed grade 17-4 stainless steel are displayed in the following table….Mechanical Properties.
| Properties | Metric | Imperial |
|---|---|---|
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Brinell | 352 | 352 |
| Hardness, Knoop (estimated from Rockwell C) | 363 | 363 |
How do you heat treat 17-4?