Ion Plasma Nitriding

With the growing popularity of nitriding, AMM invested in an environmentally friendly nontoxic process in late 2017. Offering nitriding in-house allows the company to ensure the quality of nitriding while also lowering the cost of manufacturing. Nitriding provides resistance to distortion and wear of the part as time passes and increases higher surface, face, and core hardness.

Ion Plasma nitriding is a thermochemical treatment, which is carried out by glowing discharge, exited in a gas mixture of nitrogen and hydrogen. Nitrogen Ions, accelerated by an electric field, bombard parts, heat them, and create conditions for the diffusion of the surface layer.

Ion Plasma nitriding is a process that produces excellent wear-resistant products, improves working conditions, improves surface hardness, and, ultimately, cuts down production costs. This technology allows for an excellent surface finish and reduces the risk of product distortion without changing the part dimensionally.

Possible Uses:

Dies and punches for metal forming
Gears
Crank shafts
Feed screws
Camshafts
Guides

Cylinders
Mandrels
Molds for plastics
Molds for casting of nonferrous metals and alloys
Milling tools
Drilling tools

Material	Ion Plasma Nitriding Temperature	Maximum Depth of Nitrided Layer1	Maximal Microhardness	Rockwell C Scale
1045	540 – 570°C 1004 – 1058°F	0.20 mm 0.008 in	450 – 600 (HV)	45.3 – 55.2
5120	540 – 570°C 1004 – 1058°F	0.50 mm 0.020 in	450 – 600 (HV)	45.3 – 55.2
5140	530 – 540°C 986 – 1004°F	0.50 mm 0.020 in	500 – 650 (HV)	45.3 – 57.8
4140	530 – 540°C 986 – 1004°F	0.50 mm 0.020 in	600 – 850 (HV)	55.2 – 65.9
H12	520 – 550°C 968 – 1022°F	0.50 mm 0.020 in	700 – 850 (HV)	60.1– 65.9
4820	520 – 540°C 968 – 1004°F	0.50 mm 0.020 in	650 – 750 (HV)	57.8 – 61.8+
A48	540 – 560°C 1004 – 1040°F	0.30 mm 0.012 in	400 – 600 (HV)	40.8 – 55.2
H13	520 – 560°C 968 – 1040°F	0.30 mm 0.012 in	850 – 1200 (HV)	65.9+
P20	500 – 530°C 932 – 986°F	0.30 mm 0.012 in	600 – 760 (HV)	55.2– 62.5
D2, A2, S7	500 – 520°C 932 – 986°F	0.15 mm 0.006 in	900 – 1100 (HV)	67+
M4,CPM10V	500 – 520°C 932 – 986°F	0.05 mm 0.002 in	900 – 1200 (HV)	67+
M35	500 – 540°C 932 – 1004°F	0.05 mm 0.002 in	900 – 1100 (HV)	67+
T42	500 – 540°C 932 – 1004°F	0.05 mm 0.002 in	900 – 1100 (HV)	67+
420 SS	480 – 540°C 896 – 1004°F	0.16 mm 0.006 in	900 – 1100 (HV)	67+
135M (Nitralloy)	480 – 540°C 896 – 1004°F	0.50 mm 0.020 in	1000 – 1200 (HV)	67+

Additional Services

Large Parts

Small Parts

Quality Assurance and Inspection

180 Mill Street
Athens Ohio, 45701

Phone:
740-593-6613