630，SUS630 precitipiaton hardening stainless steel,Bar, plate, sheet, strip, seamless

Introduction

17-4PH is a martensitic precipitation-hardening  stainless steel that provides an outstanding combination of high strength,  good corrosion resistance, good mechanical properties at temperatures up to  600°F (316°C), good toughness in both base metal and welds, and short time, low-temperature  heat treatments that minimize warpage and scaling. This versatile material is  widely used in the aerospace, chemical, petrochemical, food processing, paper  and general metalworking industries.

Characters

The corrosion resistance of 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.

Applications

l    Aerospace—structural and parts

l    Biomedical—hand tools

l    Chemical Processing

l    Food Process Equipment

l    Gate Valves

l    Mechanical Components

l    Nuclear Waste Processing and Storage

l    Oil and Gas Production—foils, helicopter deck platforms, etc.

l    Pulp and Paper—paper mill equipment

l    Fishing devices

Equal grades

630,SUS630,0Cr17Ni4Cu4Nb,DIN 1.4542,UNS S17400

Chemical composition  (%)

C: ≤0.07

Mn: ≤1.00

Si: ≤1.00

Cr: 15.5~17.5

Ni: 3.0~5.0

P: ≤0.04

S: ≤0.03

Cu: 3.0~5.0

Nb+Ta: 0.15~0.45

Standards

ASTM A693 Standard Specification for  Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and  Strip

ASTM A564 Standard Specification for Hot-Rolled and Cold-Finished  Age-Hardening Stainless Steel Bars and Shapes

Forms available  at A-one Alloy

Bar, plate, sheet, strip, seamless  pipe, forging

Delivery

Plenty of bars in stock. Strip could  be delivered within 2 weeks. For other products please contact A-one Alloy  for confirmation.