Welding Electrodes and Rods Classification Specification | Exercises Materials science

SPECIFICATION FOR LOW-ALLOY STEEL

ELECTRODES AND RODS FOR GAS SHIELDED ARC

WELDING

SFA-5.28

(Identical with AWS Specification A5.28-96.)

1. Scope

This specification prescribes requirements for the

classification of low alloy steel electrodes (solid, com-

posite stranded, and composite metal cored) and rods

(solid) for gas metal arc welding (GMAW), gas tungsten

arc welding (GTAW), and plasma arc welding (PAW).

PART A — GENERAL REQUIREMENTS

2. Classification

2.1 The solid electrodes (and rods) covered by this

specification are classified according to the chemical

composition of the electrode, as specified in Table 1,

and the mechanical properties of the weld metal, as

specified in Tables 3 and 4. The composite metal cored

and stranded electrodes covered by this specification

are classified according to the chemical composition

and mechanical properties of the weld metal, as specified

in Tables 2, 3, and 4, and the shielding gas employed.

2.2 Electrodes and rods under one classification shall

not be classified under any other classification in this

specification, except that ER80S-D2 may also be classi-

fied as ER90S-D2, provided that classification require-

ments for both are met.

2.3 The welding electrodes and rods classified under

this specification are intended for gas shielded arc

welding, but that is not to prohibit their use with any

other process (or any other shielding gas or combination

of shielding gases) for which they are found suitable.

565

3. Acceptance

Acceptance

of the electrodes and rods shall be in

accordance with the provisions of ANSI /AWS A5.01,

Filler Metal Procurement Guidelines.

4. Certification

By affixing the AWS specification and classification

designations to the packaging or the classification to

the product, the manufacturer certifies that the product

meets the requirements of this specification.

5. Units of Measure and Rounding-Off

Procedure

5.1 U.S. customary units are the standard units of

measure in this specification. The SI units are given

as equivalent values to the U.S. customary units. The

standard sizes and dimensions in the two systems are

not identical and, for this reason, conversion from a

standard size or dimension in one system will not

always coincide with a standard size or dimension in

the other. Suitable conversions, encompassing standard

sizes of both, can be made, however, if appropriate

tolerances are applied in each case.

See Section A3, Acceptance (in the Annex), for further information

concerning acceptance, testing of the material shipped, and ANSI⁄

AWS A5.01, Filler Metal Procurement Guidelines.

AWS Standards can be obtained from the American Welding

Society, 550 N.W. LeJeune Road, Miami, FL 33126.

See Section A4, Certification, (in the Annex) for further information

concerning certification and the testing called for to meet this

requirement.

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SFA-5.28 1998 SECTION II

TABLE 1CHEMICAL COMPOSITION REQUIREMENTS FOR SOLID ELECTRODES AND RODSa,bWeight Percent

0.20^ 1.20–1.50^ 0.40–0.65^ —^ —^ —^ —^ 0.35^ 0.

ER70S-B2L^ K20500^ 0.05^ 0.40–0.70^ 0.40–0.70^ 0.025^ 0.^

0.20^ 1.20–1.50^ 0.40–0.65^ —^ —^ —^ —^ 0.35^ 0.

ER90S-B3^ K30960^ 0.07–0.12^ 0.40–0.70^ 0.40–0.70^ 0.025^ 0.^

0.20^ 2.30–2.70^ 0.90–1.20^ —^ —^ —^ —^ 0.35^ 0.

ER80S-B3L^ K30560^ 0.05^ 0.40–0.70^ 0.40–0.70^ 0.025^ 0.^

0.20^ 2.30–2.70^ 0.90–1.20^ —^ —^ —^ —^ 0.35^ 0.

0.6^ 4.50–6.00^ 0.45–0.65^ —^ —^ —^ —^ 0.35^ 0.

0.5^ 8.00–10.5^ 0.8–1.2^ —^ —^ —^ —^ 0.35^ 0.

0.15^ 0.35^ 0.05^ —^ —^ —^ 0.35^ 0.

—^ —^ —^ —^ —^ —^ 0.35^ 0.

0.15^ —^ 0.40–0.60^ —^ —^ —^ —^ 0.50^ 0.

0.30^ 0.25–0.55^ 0.05^ 0.10^ 0.10^ 0.10^ 0.25^ 0.

ER110S-1^ K21015^ 0.09^ 1.40–1.80^ 0.20–0.55^ 0.010^ 0.010^ 1.90–2.

0.50^ 0.25–0.55^ 0.04^ 0.10^ 0.10^ 0.10^ 0.25^ 0.

ER120S-1^ K21030^ 0.10^ 1.40–1.80^ 0.25–0.60^ 0.010^ 0.010^ 2.00–2.

0.60^ 0.30–0.65^ 0.03^ 0.10^ 0.10^ 0.10^ 0.25^ 0.

ERXXS-G^ —^

SFA-5.28 1998 SECTION II