What is the hardness of 17-4 PH?

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

What is the hardness of 17-4 Condition A?

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17-4 PH Stainless Steel Condition A (annealed)
Minimum Properties
Yield Strength, psi 145,000
Elongation 5%
Rockwell Hardness C35

How hard is 17-4 PH stainless steel?

17-4PH Stainless Steel High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius). Alloy 17-4 PH 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.

Can 17-4 be hardened?

Properties. 17-4 can be heat treated to high levels of strength and hardness, and features corrosion resistance and machinability comparable to austenitic 304 stainless. Being martensitic, 17-4 is magnetic. 17-4 is capable of being hardened up to approximately 44 Rc when heat treated to condition H900.

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 17-4 PH heat treated?

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 is the difference between 17-4 and 17-4 PH?

Type 17-4 PH provides an outstanding combination of high strength, good corrosion resistance, and good mechanical properties at temperatures up to 600°F (316°C). 17-4 PH has slightly more Ferrite than other PH grades, making it a bit more magnetic.

What is the hardness of 17-4 annealed?

Mechanical Properties

Properties Metric Imperial
Hardness, Brinell 352 352
Hardness, Knoop (estimated from Rockwell C) 363 363
Hardness, Rockwell C 36 36
Hardness, Vickers (estimated from Rockwell C) 349 349

Can you heat treat 17-4?

The ATI 17-4™ precipitation hardening stainless steel is furnished in the annealed condition. … Annealing is conducted by heat treating at approximately 1900°F (1040°C) to 1950°F (1065°C) and cooling to room temperature.

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What type of stainless steel is 17-4 PH?

hardening martensitic stainless steel 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.

Will 17 4ph 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 type of steel is 17-4?

stainless steel 17-4 stainless steel, also known as SAE Type 630, is a common and exceptionally durable type of steel used in a diverse variety of industries and applications. The numbers “17-4” refer to its composition: ≈17% chromium and ≈4% nickel. It also can include between 3 and 5% copper.

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.

How hard is H1025?

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 H1025
-100 to 70°F
70 – 200°F 6.0 x 10-6
70 – 400°F 6.0 x 10-6
70 – 600°F 6.2 x 10-6

What is H900 hardness?

H900. Ultimate Tensile Strength:190 KSI min (1310 MPa min) Yield Strength (0.2% Offset): 170 KSI min (1170 MPa min) Elongation: 5% min. Hardness: Rc 40-48.

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.

How do you heat treat 17-4 SS?

HEAT TREATMENT The AL 17-4 Precipitation Hardening Alloy is furnished in the annealed condition. This is also called the solu- tion 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 tem- perature.

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What does condition a mean for 17-4 stainless steel?

17-4 PH is a chromium-nickel grade of stainless that may be hardened by a single low temperature precipitation-hardening heat treatment. Excellent mechanical properties at a high strength level may be obtained by such treatment.

What is H1150 condition?

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.

What is H1025 condition?

H1025 is the heat treatment condition. … The heat treatment process transforms martensite or austenite matrix into precipitation hardening. Hardening is achieved through the accumulation of one or more of the components Titanium, Niobium, and Molybdenum.

What does condition a mean for stainless steel?

Condition A stainless steel is a variation of 304, one of the most common stainless steels in the world. Condition A is highly resistant to corrosion, making it useful in industries susceptible to this issue.

How strong is 316l stainless steel?

558 Mpa Chemistry % by Weight

Properties Value Comment
Hardness, Rockwell B 79
Tensile Strength, Ultimate 558 Mpa
Tensile Strength, Yield 290 Mpa 0.2% YS
Elongation at Break 50% in 2 inches

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 stainless steel age Harden?

The high tensile strengths of precipitation hardening stainless steels come after a heat treatment process that leads to precipitation hardening of a martensitic or austenitic matrix. … This is known as ageing or age-hardening. As it is carried out at low temperature, the component undergoes no distortion.

How is maraging steel made?

Maraging steel is produced by heating the steel in the austenite phase region (at about 850 °C), called austenitising, followed by slow cooling in air to form a martensitic microstructure. … Carbide precipitation is practically eliminated owing to the low carbon composition.

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What is AMS H 6875?

Heat Treatment of Steel, Process for AMSH6875 It is applicable to all heat treatment of parts and to only the heat treatment of mill products which could affect its fabricability or the properties of parts.

What is H1100 condition?

Stainless Steel 17-4 H1100 is a precipitation-hardening martensitic Stainless Steel, which has corrosion resistance comparable to austenitic varieties. Our H1100 has been heat-treated to a minimum tensile strength of 140ksi, yield strength of 115ksi, an elongation in 2in of 14%, and a reduction of area of 45%.

Does hardening steel change dimensions?

In another example, according to a Latrobe Steel data sheet, 17-4 precipitation hardening stainless steel can typically be expected to shrink by 0.0004 to 0.0006 inch/inch (size change per unit of length) when aging from Condition A to Condition H-900 and 0.0018 to 0.0022 inch/inch when aging from Condition A to …

How does precipitation hardening strengthen metals?

Precipitation hardening, also called age or particle hardening, is a heat treatment process that helps make metals stronger. The process does this by producing uniformly dispersed particles within a metal’s grain structure that help hinder motion and thereby strengthen it—particularly if the metal is malleable.

What is ASTM A564?

ASTM A564 is a standard material specification for hot-rolled and cold-finished age-hardening stainless steel bars, including type 630 / UNS S17400 / 17-4 PH used for parts requiring corrosion resistance and high strength at room temperature, or at temperatures up to 600°F [315°C].

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