BLACK OXIDE

BLACK OXIDE   Is a conversion coating that produces a chemical black finish on iron or steel by converting the surface to black iron oxide. This coating chemically becomes a part of the steel surface. This produces a uniform coating with a negligible .000030 inch thickness.

APPEARANCE:   Depending on the pretreatment and base metal used, the black oxide finish can produce an attractive satiny smooth black to a matte black finish.

ABRASION RESISTANCE:   Because the black oxide finish is an integral part of the steel surface itself, it does not crack, peel, chip, or rub off. Therefor, treated parts can subsequently be bent, twisted and formed without damage.

CORROSION RESISTANCE:   The black oxide coating itself provides nominal resistance to corrosion, whereas the supplemental sealant treatment (oil or other corrosion inhibitor) is responsible for the corrosion resistance.

OTHER PROPERTIES:   The black oxide coating reduces friction, preventing galling and scoring on moving parts. It provides considerable resistance to organic solvents. The finish will not change the hardness properties of heat-treated steels.

SUMMARY:   Black oxide has a wide range of applications for military, commercial and consumer products throughout the world. It provides an attractive black finish, nominal resistance to corrosion, protection from abrasive conditions, an excellent base for organic coatings and virtually no dimensional change to the base metal.

SPECIFICATIONS:   Acton Metal Processing Corp. provides BLACK OXIDE finishes that conform to the following specifications:
MIL-DTL-13924, Class 1	Alkaline oxidizing process.	   
MIL-DTL-13924, Class 3	Fused salt oxidizing process.	   
MIL-DTL-13924, Class 4	Alkaline oxidizing process.	   
		   
MIL-C-13924, Class 1	Alkaline oxidizing process.	   
MIL-C-13924, Class 3	Fused salt oxidizing process.	   
MIL-C-13924, Class 4	Alkaline oxidizing process.	   
		   
SAE AMS 2485	Coating, Black Oxide	   
		   
MIL-STD-171E Finish No. 3.2      Black oxide for copper alloys, MIL-F-495
	   
MIL-STD-171E Finish No. 3.3.1    Black oxide for iron and steel, MIL-C-13924, 
                                 Class 1, alkaline oxidizing process.

MIL-STD-171E Finish No. 3.3.1.1  Black oxide for iron and steel, MIL-C-13924, 
                                 Class 1, with MIL-C-16173, Grade 3 
                                 supplementary treatment.

MIL-STD-171E Finish No. 3.3.3    Black oxide for corrosion resistant steel alloys,
                                 MIL-C-13924, Class 3, fused salt oxidizing 
                                 process.

MIL-STD-171E Finish No. 3.3.3.1  Black oxide for corrosion resistant steel alloys,
                                 MIL-C-13924, Class 3, with MIL-C-16173,
                                 Grade 3 supplementary oil treatment.

MIL-STD-171E Finish No. 3.3.4    Black oxide for corrosion resistant steel alloys,
                                 MIL-C-13924, Class 4, alkaline oxidizing process.

MIL-F-495                        Chemical black finish for copper alloys.

MIL-HDBK-205                     Phosphate And Black Oxide Coating of Ferrous 
                                 Metals.

Additionally, our black oxide process meets or exceeds the custom specifications of most major U.S. companies. If you have a question about a particular black oxide specification or have a custom specification, please call us and ask.


CAPABILITIES:   Our facilities and highly skilled technicians are able to meet your black oxide finishing needs. We operate two fully automatic finishing lines and three rack, basket and hoist lines. With this capability, we can accomodate jobs of most any size, ranging from small machine screws to large heavy steel plates. Acton Metal Processing Corp. is your source for cost-effective black oxide finishes.


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Acton Metal Processing Corp. provides many metal finishes including:

 
 
 
 
 
 


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