DIN 1.4542 AISI630 SUS630 17-4PH S17400 Stainless Steel Round Bar

General Introduction

17-4PH (UNS S17400), Type 630, is a chromium-nickel-copper precipitation-hardening martensitic stainless steel with an addition of niobium. 17-4PH combines high strength and hardness with good corrosion resistance.

The alloy is furnished in the solution annealed condition. It should not be used at temperatures above 572°F (300°C) or for cryogenic service. Optimal mechanical properties can be obtained by subjecting the alloy to age hardening heat treatments. Heat treatment in the 900°F (482°C) range produces the highest strength.

The corrosion resistance of Alloy 17-4PH is comparable to 304 stainless steel in most environments, and is generally superior to the 400 series stainless steels. It is used in applications where the combination of moderate corrosion resistance and unusually high strength are required. Alloy 17-4PH can be easily welded and processed by standard shop fabrication practices. It is magnetic.  

Chemical Composition

 

	%	Ni	Cr	Fe	C	Mn	Si	S	Cu	Nb	P
17-4PH	Min.	3	15.5	balance					3	0.15
	Max.	5	17.5		0.07	1	1	0.03	5	0.45	0.035

Mechanical Properties in Room Temperature

Status	Tensile strength Rm N/mm2	Yield strength Rp0.2 N/mm2	Elongation A5 %	HRC(HBS)
480°C aging	≥1310	≥1180	≥10	≥40
550° C aging	≥1060	≥1000	≥12	≥35
580°C aging	≥1000	≥865	≥13	≥31
620°C aging	≥930	≥325	≥16	≥28

 

Features & Benefits

? Medium to high strengths developed by appropriate ageing treatment

? Corrosion resistant

? Good transverse properties in remelted grade Supply Condition & Availability

? Supplied as solution treated bright machining quality bar

Application

?   Aerospace-structural and parts

?   Biomedical-hand tools

?   Chemical Processing

?   Food Process Equipment

?   Gate Valves

?   Mechanical Components

?   Nuclear Waste Processing and Storage

?   Oil and Gas Production-foils, helicopter deck platforms, etc.

?   Pulp and Paper-paper mill equipment

About US

We are professional supplier of stainless steel and superalloy products, anti-corrosion alloy, high temperature alloy and precision alloy. Product scope covers pipe, tube, plate, sheet, strip, bar, forging, wire, fastener, flange, fitting....or fabrication per customer requirement. 

 

Certificate

 We provide products with certificate of SGS, BV, TUV, GL, DNV, and so on. If required, we could provide MTC according to to EN 10204/3.1.

We are assessed supplier of  with joint certificate of Bureau Veritas(BV)

 

 

Quality assurance

Each order will be treated at first priority. The products are carefully checked and packed before shipment. If there is a quality issue or you have a question regarding product quality, you can contact directly with Mr. Jia Xizhen, our quality engineer: jiaxizhen(at). He will look into the case and feed back.

 

Service

1) Product consulate

You are working on a project and you are not sure which material is the best for you. No problem, contact us freely! Our expert will give you our professional advice for your reference, which one is better and why.

 

2) Fabrication

You are looking for a part and you need to do cutting and other processing services. No problem, just send us your specification or the drawing. We can make your product a reality.