PP-J707RH Ultra low hydrogen high toughness welding rodDetailed product description：

PP-J707RH is a low hydrogen sodium type ultra-low hydrogen high toughness welding rod, which adopts DC reverse connection and can be used for all position welding. The welding process performance is good, and the cold bending, crack resistance and explosion resistance of the welded joint are good. The weld metal has good plasticity and toughness.

Suitable for welding low-carbon quenched and tempered high-strength steel structures with a yield strength of 590MPa and welding structures serving at low temperatures, such as in the manufacturing of ship structures, engineering machinery, and mining machinery.

Chemical composition of deposited metal (%)

Elements	C	Mn	Si	Cr	Ni	Mo	S	P
standard value	≤0.10	1.20~ one point six zero	≤0.50	≤0.20	1.40~ two	0.25~0.50	≤0.020	≤0.020

Mechanical properties of deposited metal (as welded)

Test Project	tensile strength Rm/ MPa	yield strength ReLOr Rp0.2/ MPa	elongation A / %	-40 ℃ impact absorption energy AKV/ J
standard value	≥690	≥590	≥15	≥34

X-ray inspection: Level I.
Moisture content of drug skin or diffusion hydrogen content of deposited metal: ≤ 0.10% or ≤ 5.0mL/100g (chromatographic or mercury method) or ≤ 2.0mL/100g (glycerol method).
Reference current (DC+)

Welding rod diameter/mm	three point two	four	five
Welding current/A	90~120	130~170	170~210

PP-J707RH ultra-low hydrogen high toughness welding rod