17-4PH stainless steel in the H900 condition refers to a grade of precipitation-hardening stainless steel that has been heat treated to attain high strength and hardness, indicated by its approximate level of megapascals strength (MPa). To reach H900 condition, steel has undergone precipitation hardening at temperatures approximately equal to 482degC followed by cooling to stabilize its properties and stabilize aging or precipitation hardening processes at temperatures greater than approximately 900degF (about 50degC).
17-4Ph H900 Condition Round Bars stand out due to their exceptional strength-to-weight ratio, making them suitable for applications requiring both strength and corrosion resistance. Furthermore, 17-4Ph H900 Condition Round Bars offer good corrosion resistance in various environments that include moisture exposure as well as chemicals or saltwater exposure and offer superior mechanical properties suitable for demanding operations in harsh conditions.
17-4Ph H900 Condition Round Bars have many applications across a variety of industries. Aerospace and defense use 17-4Ph H900 Condition Round Bars frequently for components like aircraft fittings, missile components and firearm parts that rely on strength and durability, in oil and gas they're frequently found being utilized as valves, pumps or drilling equipment due to their corrosion-resistance and strength despite elevated temperatures or pressures.
Marine industries rely on round bars as marine hardware components such as propeller shafts or components exposed to harsh marine environments, similarly automotive manufacturers employ them in shafts, gears and suspension components that require strength and corrosion resistance for durability purposes.
17-4Ph H900 Condition Round Bars have become widely utilized within the medical sector due to their biocompatibility and corrosion resistance; providing long-term reliability and performance guarantees.
Apple Steels is a premier destination for top-quality 17-4Ph H900 Condition Round Bars in Mumbai, India. As a leading manufacturer and supplier, we specialize in manufacturing exceptional products designed with care to exceed industry requirements for strength, corrosion resistance and impeccable durability. As part of our dedication to excellence we ensure precise manufacturing processes abide by stringent quality standards to create products which exceed expectations - depend on us for reliable solutions with unparalleled expertise as well as unsurpassed customer satisfaction!
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat treatment
Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.
Descaling
A rolled piece of stainless steel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.
Cutting or Machining
Stainless steel is cut to a specified shape and size. The stainless steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
| Specification | ASTM A564 / ASME SA564 |
| Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round Bars | Outside Diameter in the range of 4mm to 500mm |
| Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | 33 x 30mm to 295 x 1066mm |
SS 17-4PH H900 Round Bar
Stainless Steel 17-4PH H900 Square Bar
Stainless Steel 17-4PH H900 Hollow Bar
Stainless Steel 17-4PH H900 Hex Bar
Stainless Steel 17-4PH H900 Bright Bar
17-4 PH H900 Stainless Steel Rods
17-4 PH H900 Stainless Steel Bar
AISI 17-4 PH H900 Hexagon Bars
AMS 5643 17-4 PH H900 Polish Bars
| Grade | C | P | Si | Ni | Cu | Fe | Mn | S | Cr | Cb+Ta |
| SS 17-4 PH | 0.07 | 0.04 | 1.0 max | 3.0 – 5.0 | 3.0 – 5.0 | Bal | 1.0 max | 0.03 | 15.0 – 17.5 | 5 X C / 0.45 |
|
Condition
|
Ultimate Tensile
Strength (PSI) |
0.2% Yield
Strength (PSI) |
Elongation
(% in 2in.) |
Reduction Of
Area (%) |
Hardness
Brinell |
Hardness
Rockwell |
|---|---|---|---|---|---|---|
|
H900
|
190,000
|
170,000
|
10
|
40
|
388
|
C40
|
|
H1025
|
155,000
|
145,000
|
12
|
45
|
331
|
C35
|
|
H1075
|
145,000
|
125,000
|
13
|
45
|
311
|
C32
|
|
H1150
|
135,000
|
105,000
|
16
|
50
|
277
|
C28
|
|
H1150-M
|
115,000
|
75,000
|
18
|
55
|
255
|
C24
|
|
H1150-D
|
125,000
|
105,000
|
16
|
50
|
255 min-
311 max |
C24-33
|
Electrical Industry
Automotive Industry
Construction Industry
Defence Industry
Pharmaceutical Industry
Petroleum Industry
Petrochemical Industry
Milk & Dairy Industry
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