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A302

GB/T 983 E309-16
AWS A5.4 E309-16
 
 

Introduction:

A302 is a, calcium-titanium coated, Cr23Ni13 stainless steel electrode. The deposited metal has good crack-resistance and oxidation resistance. The electrode can operate on AC/DC. It is easy to operate.

 

Uses:

It is used in similar type stainless steel, dissimilar stainless steel and high chromium steel and high manganese steel.

 

Chemical Composition (%)

Chemical Composition

C

Mn

Si

S

P

Cr

Ni

Mo

Cu

Guarantee Value

≤0.15

0.50 ~ 2.50

≤1.00

≤0.030

≤0.040

22.0 ~ 25.0

12.0 ~ 14.0

≤0.75

≤0.75

General Result

0.055

1.45

0.70

0.009

0.021

24.25

12.75

0.035

0.10

 

Mechanical Properties of Deposited Metal

Test Item

Rm (N/mm2)

A (%)

Guarantee Value

≥550

≥25

General Result

595

40

 

 

Reference Current (AC/DC+)

Diameter

φ2.0

φ2.5

φ3.2

φ4.0

φ5.0

Amperage

40 ~ 80

50 - 100

70 ~ 130

100 ~ 160

140 ~ 200 

 

Notes:

1. The electrode must be preheated at the temperature of 300°C for 1 hour.
2. Preferred DC power supply, electricity should not be high.
 

Welding Positions: