17-4 PH

AISI 630 | UNS S17400 | DIN 1.4542 | 17-4 PH

SS 17-4 PH Stockiest, Supplier, Exporter, Trader, Dealer.

Alloy 17-4 Stockiest, Supplier, Exporter, Trader, Dealer.

UNS S17400 Stockiest, Supplier, Exporter, Trader, Dealer.

17-4PH Stockiest, Supplier, Exporter, Trader, Dealer.

SAE / AISI 630 Stockiest, Supplier, Exporter, Trader, Dealer.

 

General Properties of 17-4PH SS, Alloy 17-4 PH, Stainless Steel 17-4 PH

SAE type 630 stainless steel (more commonly known as 17-4 PH; also known as UNS 17400) is a grade of martensitic precipitation hardened stainless steel. It contains approximately 15–17.5% (17) chromium and 3–5% (4) nickel, as well as 3–5% copper.

SS 17-4 is a chromium-copper precipitation hardening stainless steel that is used for applications requiring high strength and a moderate level of corrosion resistance. 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. Alloy 17-4 PH has adequate resistance to atmospheric corrosion or in diluted acid salts where its corrosion resistance is equivalent to Alloy 304 or 430. Alloy 17-4PH can be heat treated to a variety of temperatures to develop a wide range of properties. Its mechanical properties can be optimized with heat treatment where very high yield strength up to 180 ksi can be achieved. Alloy 17-4 should not be used at temperatures above 572°F or at very low temperatures.

 

Here are some benefits of 17-4 PH round bars. Listed below:

• High tensile strength and toughness
• Excellent corrosion resistance
• It is best suited for forging and welding
• Machinability operations
• Oxidation resistance
• Have a good resistance to sulphide stress cracking

 

Stainless Steel 17-4 PH / UNS S17400 Round Bars Specifications :

• Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
• Grade : 17-4 PH (UNS No. S17400) Round Bars 1.4542
• Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
• Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
• Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
• Application : Chemical process, Food processing, Petrochemical, Pollution control, Pulp and Paper, Refining
• Condition : Cold Drawn, Polished Cold Drawn, Centreless Ground & Polished.

 

Applications of SS 17-4 PH / UNS S17400:

SS 17-4 PH is commonly used for applications requiring high strength and a moderate level of corrosion resistance. Some applications that frequently use Alloy 17-4 include:

Pumps and valves in high pressure components	Chemical process components
Industrial and mechanical components	Aerospace industrial purpose
Chemical process components	Pulp & paper industry
Nuclear plants application	Food industry
Mechanical components	Aerospace
Aircraft	Offshore
Nuclear waste casks	Food industry
Paper mills	Power generation
Paper mills	Aircraft and gas turbines
Oil Fields	Nuclear reactor

 

Standards of SS 17-4 PH / UNS S17400 :

• ASTM/ASME: UNS S17400
• EURONORM: X5CrNiCuNb16.4
• AFNOR: Z6CNU17-04
• DIN: 1.4542
• S17400
• AISI 630
• NACE MR 0175
• ASTM A484/ A564
• AMS 2303/5643
• ASME SA564
• 4542
• X5CrNiCuNb16-4

 

Properties of SS 17-4 PH / UNS S17400 :

• Alloy 17-4 PH is a martensitic stainless steel having Cu and Nb/Cb in addition.
• A grade is its high strength.
• Hardness up to 300 degrees Celsius.
• Corrosion resistance.
• Optimized with heat treatment.
• High yield strength up to 160-190 ksi.

 

Corrosion Resistance of SS 17-4 PH / UNS S17400 :

• Withstands corrosive attacks better than any of the standard hardenable stainless steels.
• Comparable to Alloy 304 in most media.
• Corrosion resistant in some chemical, petroleum, dairy, and food process industries.
• Subject to crevice or pitting attack if exposed to stagnant sea water for any length of time.

 

Weldability of SS 17-4 PH / UNS S17400 :

• Successfully welded by most common fusion and resistance methods.
• Should not be joined by oxyacetylene welding.
• Generally no pre-heating required.
• Inter-pass temperature must be limited to 248°F.
• Better toughness is obtained in the weld after a complete heat treatment. 

 

Processing – Hot Forming of SS 17-4 PH / UNS S17400 :

• To forge, heat uniformly to 2150 / 2200°F and hold for half hour per inch.
• Preferred temperature range for hot forming is at 650-900°F, while the steel is still austenitic.
• To ensure the best condition for the hardening operations, the forgings must be re-heat treated at 1875-1925°F.
• Cool forgings to below 90°F to ensure grain refinement.

 

Processing – Cold Forming of SS 17-4 PH / UNS S17400 :

• Alloy 17-4 is limited to mild operations since in the annealed (solution treated) condition the material is hard.
• For severe cold working the material should be heat treated to condition H1150. This will help prevent possible cracking.
• Bend radius in excess of 7T is often required.
• To improve stress corrosion resistance after cold forming, re-aging at the precipitation-hardening temperature is recommended.

 

Machinability of SS 17-4 PH / UNS S17400 :

• Can be machined in both solution-treated and precipitation-hardening conditions.
• Machining conditions may vary with hardness of material.
• High-speed tools or preferably carbide tools with standard lubrication are normally used.

 

Chemical Properties / Chemistry of Steel 17-4 PH Round, Bright, Hex, Threaded Bar:

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

 

Types of Available Products ASME, ASTM, EN, BS, GB, SS 17-4 PH Round Bars :

SS 17-4 PH Round Bars	17-4 PH SS Cold Drawn & Polished Square Bars
AMS 5643 17-4 PH Bars	Austenitic ASTM Bright 17-4 PH Bar
17-4 PH UNS S17400 Round Bars	17-4 PH Stainless Steel DIN 1.4542 Round Bars
AMS 5643 SS 17-4 PH Rods Manufacturer	AISI 17-4 PH Hexagon Bars Dealers
AMS 5643 Steel 17-4 PH Polish Bars Manufacturer	Standard AMS 5643 17-4 PH Cold Drawn Bars Stockholder
AISI Stainless Steel 17-4 PH Black Bars Distributors	High Speed Steel 17-4 PH Hollow Bar Suppliers
Top Quality High 17-4 PH Spring Steel Bars	ASME, ASTM, EN, BS, GB, SS 17-4 PH Flat Bars
13-8 PH Bright Bar Exporter	17-4 PH Round Bar Suppliers
AMS 5643 17-4 PH Forged Round Bars	Cold Rolled JIS 17-4 PH Rods
17-4 PH Stainless Steel Rods	17-4 PH Steel Threaded Bars Stockiest in India
SS 17-4 PH Stockiest	SS 17-4 PH Supplier
SS 17-4 PH Trader	SS 17-4 PH Dealer