BOC Smootharc MMA 130 Specifications download pdf

8Consumables

309AU : IPRM 2007 : SECTION 8 : CONSUMABLES

WARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays, and a potential health hazard if you breathe in the emitted fumes and gases.

Read all the manufacturer’s instructions to achieve the correct welding conditions and ask your employer for the Materials Safety Data Sheets. Refer to www.boc.com.au or www.boc.co.nz

Fundamentals of

Manual Metal Arc

(MMA) Welding

Welding Technique

Successful MMA welding depends on the following factors:

Selection of the correct electrode

Selection of the correct size of the electrode for the job

Correct welding current

Correct arc length

Correct angle of electrode to work

Correct travel speed

Correct preparation of work to be welded.

Electrode Selection

As a general rule, the selection of an electrode is straight forward,

in that it is only a matter of selecting an electrode of similar

composition to the parent metal. However, for some metals there

is a choice of several electrodes, each of which has particular

properties to suit speciﬁc classes of work. Often, one electrode in

the group will be more suitable for general applications due to its all

round qualities.

The table below shows just a few of the wide range of electrodes

available from BOC, with their typical areas of application.

For example, the average welder will carry out most fabrication

using mild steel and for this material has a choice of various

standard BOC electrodes, each of which will have qualities

suited to particular tasks. For general mild steel work, however,

BOC Smootharc 13 electrodes will handle virtually all applications.

BOC Smootharc 13 is suitable for welding mild steel in all positions

using AC or DC power sources. Its easy striking characteristics and

the tolerance it has for work where ﬁt-up and plate surfaces are not

considered good, make it the most attractive electrode of its class.

Continuous development and improvement of BOC Smootharc

13 have provided in-built operating qualities, which appeal to the

beginner and experienced operator alike. For further advice on the

selection of electrodes for speciﬁc applications, or to obtain a copy

of the ‘Welding Consumables: Selection Chart’, contact your local

BOC representative on 131 262.

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Electrodes and Typical Applications

Name

AWS

Classiﬁcation Application

BOC Smootharc 13 E6013 A premium quality electrode

for general structural and

sheet metal work in all

positions, including vertical-

down using low carbon steels

BOC Smootharc 24 E7024 An iron powder electrode

for high speed welding for

H-V ﬁllets and ﬂat butt joints.

Medium to heavy structural

applications in low carbon

steels

BOC Smootharc 18 E7018-1 A premium quality, all

positional hydrogen

controlled electrode for

carbon steels in pressure

vessel applications and

where high integrity welding

is required; and for free-

machining steels containing

sulphur

BOC Smootharc S 308L E308L Rutile basic coated low

carbon electrodes for welding

austenitic stainless steel

BOC Smootharc S 316L E316L

BOC Smootharc S 309L E309L Rutile basic coated low

carbon electrode for welding

mild steel to stainless steel

and difﬁcult to weld material

Electrode Size

The size of the electrode generally depends on the thickness of

the section being welded, and the thicker the section the larger the

electrode required. In the case of light sheet, the electrode size used

is generally slightly larger than the work being welded. This means

that, if 2.0 mm sheet is being welded, 2.5 mm diameter electrode is

the recommended size.

The following table gives the maximum size of electrodes that may

be used for various thicknesses of section.

1 2 3 4 5 6 7 8 9

Summary of Contents

Page 1 - (MMA) Welding

8Consumables309AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to th

Page 2 - Types of Joints

8310AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays,

Page 3

8311AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays,

Page 4 - Fillet Welds

8312 AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays

Page 5

8313AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays,

Page 6 - Welding Defects and Problems

8314 AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays

Page 7

8315AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays,

Page 8 - Coating Types

8316 AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays

Page 9 - Practical Considerations

8317AU : IPRM 2007 : SECTION 8 : CONSUMABLESWARNING Welding can give rise to electric shock, excessive noise, eye and skin burns due to the arc rays,

BOC Smootharc MMA 130 Specifications

Browse online or download Specifications for Welding System BOC Smootharc MMA 130. BOC Smootharc MMA 130 Specifications User Manual

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BOC Smootharc MMA 130 Specifications

Browse online or download Specifications for Welding System BOC Smootharc MMA 130. BOC Smootharc MMA 130 Specifications User Manual

Summary of Contents

More documents for Welding System BOC Smootharc MMA 130

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