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BC-E309(A307）

Standard: GB/T 983 E309-15, AWS A5.4 E309-15, ISO 3581-B-ES309-15
Features: 
  • A307 is a stainless steel electrode with alkaline coating type
  • Weld metal has excellent crack resistance and oxidation resistance
  • DC reverse connection, all position welding

Product Parameters:
 
  C Mn Si P S Cr Mo Cu Ni
Standard value ≤0.15 0.5-2.5 ≤1.0 ≤0.04 ≤0.03 22.0-25.0 ≤0.75 ≤0.75 12.0-14.0
Example value 0.077 1.46  0.58 0.025 0.009 23.8 0.13  0.21 12.80 

  Tensile Strength
Rm（MPa）		 Elongation after fracture
A（%）
Standard value ≥550 ≥25
Example value 590 39

Diameter X length

(mm x mm)		 Package-Weight
（kg）
Inner box Carton
2.0x300 5 20
2.5x300 5 20
3.2x350 5 20
4.0x400 5 20

Diameter（mm） 2.0  2.5 3.2  4.0 
length（mm） 300 300 350 400
Current（A） 25-50 50-80 80-110 110-160

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