Nitronic®

Delta Fastener Corp. can provide a wide variety of Nitronic fasteners including; Nitronic nuts, Nitronic bolts, sockets, washers and more Nitronic Fasteners. If we do not have your Nitronic Fasteners in stock (Inch or Metric) we can have these manufactured to your specification.

Material Notes:

Nitronic® stainless steels are austenitic, high-strength, corrosion-resistant products that provide higher-performance alternatives to many conventional 300 and 400 Series stainless steels.

Available in ingot, billet, bar, wire, plate and master melt products, Nitronics® offer approximately twice the strength of 300 Series stainless steels.

Nitronic® alloys provide excellent mechanical properties at both sub-zero and elevated temperatures, impact resistance at low temperatures and, superb resistance to high- temperature oxidation yet retain good weldability and fabricability, and remain non-magnetic even after extensive cold working.

Most common types for fasteners.

NITRONIC® 50 (XM-19) (UNS S20910)

Cr 22, Ni 12.5, Mn 5, Mo 2.25, Si 1 C 0.06 Fe bal.

NITRONIC 60® (Alloy 218) (UNS S21800)

Cr 17, Mn 8, Ni 8.5, Si 4, N 0.13, C 0.10, Fe Bal.

Wear Compatibility of NITRONIC 60 wear compared to Cobalt 6B and

17-4PH Against Various Alloys

Alloy Hardness 17-4 PH

(HRC 43)

NIT 60

(HRB 95)

Cobalt 6B

(HRC 48)

304 HRB 99 24.7 6 3.1
316 HRB 91 18.5 4.3 5.5
17-4 PH HRC 31.5 66.1 4.9 2.7
17-4 PH HRC 43 52.8 5.4 3.8
NIT 32 HRB 95 17.2 3.2 2
NIT 50 HRB 99 15.7 3.5 2.9
NIT 60 HRB 95 5.4 2.8 1.9
Cobalt 6B HRC 48 3.8 1.9 1
Chrome Plate --- 3.3 2.1 0.3
Silicon Bronze HRB 93 2 2.2 1.9
K-500 Monel HRC 34 34.1 22.9 18.8
416 HRC 24 --- 5.5 43
431 HRC 32 --- 3 1
Waspaloy HRC 36 --- 3.1 2.4
IN 718 HRC 38 --- 3.1 2.7
IN X-750 HRC 36 --- 5.5 8
Weight Loss of Couple (mg/1000 cycles)

Information provided by ElectrAlloy and HPAlloys

Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.