Adinox Overseas is a leading global supplier and exporter of top-quality 17-4 PH Pipes, delivering superior performance in harsh industrial conditions. It has another designation as UNS S17400, and it belongs to the family of precipitation-hardened stainless steel alloys. It has been developed to achieve a complete balance of corrosion resistance, yield strength, and hardness. Our 17-4 PH pipes conform to the standard specification of the ASTM A564, which applies to age-hardenable stainless steel bars and shapes, guaranteeing the best quality and performance for structural and mechanical applications.

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These 17-4 PH stainless steel pipes are used extensively in a wide variety of industries such as aerospace, nuclear, chemical, food processing, marine, and petrochemical because of their superior mechanical properties and exceptional corrosion resistance. The primary benefit of 17-4 PH is to provide a wide variety of mechanical strengths through heat treatment and maintain a good corrosion resistance similar to austenitic stainless steel grades 304 and 316.

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The composition of UNS S17400 Pipes comprises chromium, nickel, and copper along with additions of niobium for the control of the strengthening phase's precipitation. This composition enables the material to be heat-treated to strength levels of an exceptional magnitude without the sacrifice of ductility and toughness. One of the greatest advantages of 17-4 PH is the retention of exceptional mechanical strength at 600°F (316°C) maximum temperature conditions, which makes it perfect for service in the temperature zone.

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17-4 PH is a corrosion-resistant martensitic stainless steel, providing resistance in a variety of conditions ranging from freshwater to industrial atmospheres and mildly acidic/chloride-containing conditions. It provides resistance close to 304-grade stainless steel but with significantly stronger mechanical properties, making it a material of preference where strength and performance are of vital importance.

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Specifications Of 17‐4 PH Pipes

Grade	Stainless Steel 17-4 PH / UNS S17400
Length	Single Random, Double Random and Cut Length.
Thickness	0.3mm – 50 mm
Form	Round, Rectangular, Square Etc.
End	Treaded End, Beveled End, Plain End.
Welded Pipe & Tubes Size	6” NB - 24” NB
Seamless Pipe & Tubes Size	1 / 2” NB - 8” NB
Outer Diameter	6.0-630mm
Type	Seamless, Welded, ERW, EFW, Fabricated
Schedule	SCH20, SCH30, SCH40, SCH80, SCH60, SCH80, SCH120, SCH140, SCH160, STD, XXS, XS
SS 17-4 PH Pipe Range	SS 17-4 PH Pipe Range: Round Pipes, Square Pipes, Rectangular Pipes, Oval Pipe, Colour Coated Pipe, High Pressure Pipes, Decorative Polished Pipes, Large Size Seamless Pipes, Large Diameter Fabricated Pipes.
SS 17-4 PH Tube Range:	Seamless Cold Rolled Coiled Tubing, High Pressure Tubes, Instrumentation Tubes, Seamless U-Bended Heat Exchanger Tubes, Straight Stainless Steel Tubing, Seamless U-tubes, Electropolished Tubes, Round Tube, Square Tube, Capillary Tubing, Seamless Heat Exchanger Tubes, Pre Insulated, etc.

Chemical Composition for 17‐4 PH Pipes

Grade	C	Mn	Si	S	Cu	Fe	Ni	Cr	Cb+Ta
SS 17-4 PH	0.07	1.0 max	1.0 max	0.03	3.0 – 5.0	Bal	3.0 – 5.0	15.0 – 17.5	5 X C / 0.45

Mechanical Properties Of 17‐4 PH Pipes

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B)	Brinell (HB)
Alloy 17-4 PH	95,000	50,000	25	-	175

Application Of Industries

Power Plants

Aerospace

Refineries

Construction

Oil & Gas

Sugar

Chemical

Petrochemical

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