Data Sheet

17-4PH

UNS S17400
Bars
Sheets/Plates
Material

17-4PH Steel

International Codes

UNS S17400

X5 Cr Ni Cu Nb 16-4

1,4542

Main Features

Corrosion Resistant

High Mechanical Resistant

Density

7,8Kg/dm3

Chemical Composition

Cr

Max. 15,5%

Ni

Max. 4,5%

Mo

Max. 0,20%

Co

NbTa

5xC%

Al

Ti

C

Max. 0,02%

Fe

Mn

Max. 0,70%

Si

Max. 0,35%

P

Max 0,025%

S

Max 0,025%

CbTa

Cu

Max. 3,20%

Altro

Standards

NACE

MR0175

General Proprieties

The 17-4PH steel (UNS S17400) 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 300°C while demonstrating good corrosion resistance in all heat treated conditions. The 17-4PH steel has adequate resistance to atmospheric corrosion or in diluted acid salts where its corrosion resistance is equivalent to 304 steel or 430. The 17-4PH steel 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 1240Mpa can be achieved. The 17-4PH should not be used at temperatures above 300°C or at very low temperatures. It is one of the most widely used precipitation hardening grades, as it has high strength hardness up to about 300°C while demonstrating good corrosion resistance in all heat treated conditions. The 17-4PH steel is available at CHUN & VOLLERIN in the following formats: Bars, Plates.
All data are to be considered typical for the product selected. Refer to the production certificate for the specific characteristics of the product. All the material has a UNI EN 10240 3.1 certificate with EU, USA and JP origin. All registered trademarks are the property of their respective owners.

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