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What common metal has good weld ability?
2018-04-09

                                                What common metal has good weld ability?

 

The weld ability, also known as join ability, of a material refers to its ability to be welded. A weld ability of metal is used to determine the welding process and to compare the final weld quality to other materials. So, what common metal have good weld ability? Do you know more about that?

 

Common metal and its weld ability

Steel:

 

Steel

Weld ability

Carbon steel

Low Carbon Steel

★★★★

Medium Carbon Steel

★★★

High Carbon Steel

★★

Alloy Steel

Low Alloy Steel

★★★★

Medium Alloy Steel

★★★

High Alloy Steel

★★

Alloy Steel

Ferrite

★★★★★

Duplex SS

★★★★★

Austenite

★★★★★

Martensite

★★★★★

 

Note: We can use Carbon Equivalent to judge the weld ability.
Ce= W(C) +W(Mn)/6+[W(Cr)+W(Mo)+W(V) ]/5+[W(Ni)+W(Cu)]/15
When Ce < 0.4%, good weld ability, and should consider preheating,
When Ce =0.4%~0.6%, relatively poor weld ability,
When Ce >0.6%, poor weld ability, must be preheated to a higher temperature.

 

Aluminum Alloy:

 

Series

Weld ability

Why

1

★★★★★

Pure aluminum

2

High hardness

3

★★★★★

Mn

4

★★★

Si,Good liquidity

5

★★★★

Mg, Low boiling point, easy vaporization

6

★★★

Mg₂Si, Low melting point compound

7

High hardness

 

Copper Alloy:

 

Copper Alloy

Weld ability

Why

Copper 

★★★★

Pure Copper

Cupronickel

★★★★★

Ni,Good weld ability

Brass

Zn,Low boiling point, easy vaporization

Bronze

Bronze is generally harder

 

Nickel alloy:

 

Nickel alloy

Weld ability

Why

Monel alloy(Cu)

★★★★

 

The Austenite has good weld ability, but when it contains elements such as Al and Ti, the weld ability will be worse.

Incoloy(Cr-Fe)

★★★★

Hastelloy alloy B(Mo)

★★★★

Hastelloy alloy C (Cr-Mo)

★★★★

Hastelloy alloy G (Cr-Mo-Cu)

★★★★

 

After reading this passage, you may can know about the metal weld ability, and if you have any problems of Metal laser welding, please send the e-mail to international@uwlaser.com .