Lincoln Electric Welder User Manual

Page 3

STAINLESS STEELS
PROPERTIES –
HOW TO WELD THEM
WHERE TO USE THEM

A description of the physical and mechanical properties of a
variety of commercial stainless steels. Recommendations on the
applications of each type and how to arc weld each including
filler materials.

Damian Kotecki, PhD
Technical Director, Stainless and High Alloy
Product Development

and

Frank Armao

Senior Application Engineer

TABLE OF
CONTENTS

1.0 Introduction ........................ 2

2.0 Types of Stainless Steels... 2

2.1 Ferrite Promoters
2.2 Austenite Promoters
2.3 Neutral Effect

3.0 Weldability of Stainless

Steels ....................................2

3.1 Ferritic Stainless Steels
3.2 Martensitic Stainless

Steels

3.3 Austenitic Stainless

Steels
3.3.1 Sensitization
3.3.2 Hot Cracking

3.4 Precipitation Hardening

Stainless Steels

3.5 Duplex Stainless Steels

4.0 Physical Properties .......... 10

5.0 Mechanical Properties ..... 10

6.0 Selection of a Stainless

Steel ....................................12

7.0 Design for Welding

Stainless Steels ..................14

8.0 Selection of Filler Metals ...14

9.0 Selection of a Welding

Process ...............................18

9.1 Shielded Metal Arc

Welding

9.2 Submerged Arc Welding
9.3 Gas Metal Arc Welding
9.4 Flux Cored Arc Welding
9.5 Gas Tungsten Arc

Welding

10.0 Procedures for Welding

Stainless Steels ..................21
10.1 Welding with the Shielded

Metal Arc Process

10.2 Welding with the

Submerged Arc Process

10.3 Welding with the Gas

Metal Arc Process

10.4 Welding with the Gas

Tungsten Arc Process

Sources of Additional
Information

Safety in Welding