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JACKSUN 18 H4R

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AWS A5.1: E7018 H4REN ISO 2560-A: E 42 4 B 32 H5EN ISO 2560-B: E4918 H4R

Description

Basic coated, low hydrogen electrode with enhanced moisture resistance (H4R). Provides superior mechanical properties with diffusible hydrogen ≤ 4 ml/100 g weld metal. Designed for structural steel, bridges, pipelines, boilers, and pressure vessels where hydrogen cracking resistance is critical. R suffix (Resistant): Special coating technology ensures extended shelf life without moisture pick-up (meets AWS H4R). Smooth arc, easy slag removal, fine weld bead. Suitable for all-position welding except vertical down.

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Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15

Add specification title

Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15

Add specification title

Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15

Add specification title

Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15

Add specification title

Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15

Add specification title

Element

%

C

0.06 – 0.15

Mn

1.40 – 1.85

Si

0.80 – 1.15

S

≤ 0.035

P

≤ 0.025

Cr

≤0.15

Ni

 

Mo

≤0.15

 

≤0.15