17-4 PH round bar

17-4 PH Round Bar

17 4PH bar and 17 4 PH stainless steel bar suppliers in UAE

What is 17-4 PH round bar?

Many applications in aerospace, petrochemical, food processing and paper industries need high-strength pipes at affordable costs. Hence martensitic steels having nominal chromium and nickel with small quantities of copper and manganese is the right choice. Since nickel and manganese add tensile and yield strength and chromium is corrosion-resistant, it is best for many applications.

17-4 PH round bar has 17% chromium and 4% nickel to be useful in high strength and corrosion resistance applications. The PH in the name 17-4 PH denotes “precipitation hardenable” suitable for cryogenic applications.

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17-4 ph round bar specification

17-4 ph round bar properties

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What is 17-4 PH condition A?

Stainless Steel 17-4 PH round bars made from a precipitation-hardening martensitic alloy of chromium and nickel have high strength and corrosion resistance. It is because of the 17-4 PH condition A or solution annealed condition. However, it is not ideal for cryogenic services or applications that exceed temperatures of 572 F or 300 C.

The density of 17-4 PH bars in the annealed or solution-treated condition is 0.280 lb/in^3. The thickness will change upon heating above the stipulated 900 F or 482 C. To have close tolerances during usage it is essential to consider the predictable density changes.

17 4 PH stainless steel round bar and SS17-4PH flat bar with MTC BS EN 10204 3.1B

Types of 17-4 PH round bar

17 4 ph round bar

17 4 ph round bar

17 4 ph bar

17 4 ph bar

174 ph stainless rod

174 ph stainless rod

17-4 ph bar

17-4 ph bar

17-4 ph round bar

17-4 ph round bar

17-4 ph stainless steel bar

17-4 ph stainless steel bar

UNS S17400 hex bar

UNS S17400 hex bar

AMS 5643 17-4 PH bars

AMS 5643 17-4 PH bars

17-4PH SS flat bar

17-4PH SS flat bar

What type of steel is 17 4 PH round bar?

17-4 PH bar material is a grade 630 martensitic stainless steel alloy with high strength, hardness and corrosion resistance. The UNS S 17400 is a chromium-nickel-copper precipitation hardening steel ally with niobium. Known as 17-4 because of its 17% chromium and 4% nickel, it also has 3 to 5% copper. SS17-4PH Material in the solution annealed condition below 900 F or 482 C has tensile and yield strength and excellent elongation percentage. But it is not suitable for applications involving temperatures above 300 C or 572 F or for cryogenic services.

AMS 5643 steel 17-4 PH bright bar and UNS S17400 hex bar stock available in annealed finish

Does 17-4 PH stainless steel round bar harden?

Yes, hardening a 17-4 PH Stainless Steel round bar is possible with a single hardening heat treatment- low-temperature precipitation. It is because of 17-4 or SS UNS S17400 Hex Bar, a precipitation-hardening martensitic SS alloy with chromium and nickel. It also has additions of manganese, cobalt, and niobium to have high strength, corrosion resistance, and hardness up to 572 F or 300 C. AMS 5643 Steel 17-4 PH Bright Bar can withstand extreme corrosive attacks compared to other standard hardened stainless steel bars. It is because of its high yield strength of up to 1100 – 1300 Mpa or 160 to 190 ksi.

SS 17-4 PH cold finished bars and square bar from 20 mm to 150 mm width in various thickness in 6 mtrs length

What is the density of 17-4 stainless steel bars?

17-4 PH Stainless Steel Bar has a density of 0.280 lb/in^3 el in the solution-treated condition A. For the other conditions, there is a change in the density values that include density changed to 0.282 lb/in^3. for H900, 0.283 lb/in^3.for H 1075 and 0.284 lb/in^3. for H 1150.

The above changes in density indicate that the 17-4 Ph alloy undergoes volume contraction on hardening. But the volume contraction is predictable, and the buyer should take it into account to hold close tolerances.