Iron Powder

Metals

Iron powder is a critical, high-purity additive often >60% in coating formulations used in welding electrodes and flux-cored wires to significantly increase deposition rates and efficiency. Primarily Atomized Iron Powder (for high purity/stability) and Reduced Iron Powder (common in coatings and flux-cored wires). Low impurities, specific mesh size, and high quality are critical for performance, with types like 40.29 often used.

Specifications for Iron Powder

Grade	C	S	P	Fe	H2O Loss	Apparent Density (gms/cc)
40.29	0.02	0.02	0.02	Balance	0.50 Max	2.80 Min
60.29	0.02	0.02	0.02	Balance	0.50 Max	2.80 Min
40.37	0.05	0.02	0.02	Balance	0.50 Max	3.40 - 3.70
100.25	0.05	0.02	0.02	Balance	0.50 Max	2.40 - 2.60
Electrolytic	0.02	0.02	0.02	Balance	1.70 Max	2.80 - 3.10
2.60A	0.02	0.015	0.015	Balance	0.20 Max	2.55 - 2.70
2.90A	0.02	0.015	0.015	Balance	0.20 Max	2.80 - 3.00
2.90HC	0.01	0.015	0.015	Balance	0.15 Max	2.88 - 3.03
3.00BC	0.01	0.02	0.02	Balance	0.10 Max	2.90 - 3.10
HC4000	0.01	0.015	0.015	Balance	0.10 Max	3.00 - 3.15
HC4400	0.02	0.015	0.015	Balance	0.15 Max	2.80 - 3.05
PHC45	0.04	0.015	0.40 - 0.50	Balance	-	3.10 - 3.25
PHC60	0.04	0.015	0.55 - 0.65	Balance	-	3.10 - 3.25
2.90DCu	0.02	0.015	0.015	Balance	0.30 Max	2.70 - 2.92
HCAB	0.01	0.02	0.02	Balance	0.15 Max	2.95 - 3.10
HCAE	0.01	0.02	0.02	Balance	0.15 Max	2.97 - 3.12

Applications for Iron Powder

Powder metallurgy, welding rods

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