Military & Firearms Surface Treatments
Military & Firearms

Certess™ Carbon DLC Coatings

 

Coating Composition Friction Coefficient (dry against steel) Friction Coefficient (lubricated) Hardness (Hv) Coating Thickness (microns) Deposition Temperature 

°C

Maximum Service Temperature 

°C (2)

CertessTM Carbon
DT
a-C:H:W 0.20 - 0.25 0.10 - 0.15 1200 - 1400 2 - 5 µm but can vary depending on the application 150 - 350 ˚C but can vary depending on the application 300 ˚C
CertessTM Carbon
DDT
WC + a-C:H:W + a-C:H 0.11 - 0.15 0.07 - 0.11 2500 - 3200 2 - 5 µm but can vary depending on the application 150 - 350 ˚C but can vary depending on the application 350 ˚C
CertessTM Carbon
DCX
CrN + a-C:H 0.11 - 0.15 0.07 - 0.11 2500 - 3200 2 - 5 µm but can vary depending on the application 150 - 350 ˚C but can vary depending on the application 350 ˚C
CertessTM Carbon
DCY
Cr + WC + a-C:H:W + a-C:H 0.11 - 0.15 0.07 - 0.11 2500 - 3200

2 – 5 µm but can vary depending on the application

150 - 350 °C  but can vary depending on the application 350 ˚C
CertessTM Carbon
TC
ta-C < 0.1 < 0.1 3000 - 7000

1 – 4 µm but can vary depending on the application

150 ˚C 450 ˚C

Certess™ Nitro PVD Coatings

 

Coating Hardness Hv Hardness GPa Friction Coefficient (dry against steel) Thickness Deposition Temperature 

°C

Maximum Service Temperature 

°C

Appearance
CertessTM Nitro
TTi
TiN
2000 - 2400 20 - 24 0.5 2 - 5 µm but can vary depending on the application 260 ˚C but can vary depending on the application 500 ˚C Gold
CertessTM Nitro
TTi - Low TiN
2000 - 2400 20 - 24 0.5 1.5 - 3 µm but can vary depending on the application 300 - 400 ˚C but can vary depending on the application 500 ˚C Gold
CertessTM Nitro
TTC
TiCN
2800 - 3200 28 - 32 0.4 2 - 5 µm but can vary depending on the application 300 - 400 ˚C but can vary depending on the application 475 ˚C Bronze
CertessTM Nitro
TAT
AlTiN
2800 - 3200 28 - 32 0.6 2 - 5 µm but can vary depending on the application 300 - 400 ˚C but can vary depending on the application 750 ˚C Purple/Black
CertessTM Nitro
TN
CrN
1800 - 2200 18 - 22 0.5 2 - 5 µm but can vary depending on the application 300 - 400 ˚C but can vary depending on the application 700 ˚C Silver
CertessTM Nitro
TG
ZrN
2200 - 2500 22 - 25 0.5 2 - 5 µm but can vary depending on the application 300 - 400 ˚C but can vary depending on the application 600 ˚C Light Gold
CertessTM Nitro
M
MoN
2500 - 3000 25 - 30 0.20 - 0.25 1 - 5 µm but can vary depending on the application < 200 ˚C 700 ˚C Light Gray

CertessTM Nitro
DT
WC-C

2000 - 2500 20 - 25 0.20 - 0.25 2 - 5 µm but can vary depending on the application 250 - 350 ˚C but can vary depending on the application 400 ˚C Gray

 Salt Bath Nitride Hardness Chart

Steel Core Strength After Hardening & Tempering Temper. Temperature (N/mm2) Surface Hardness 90 Min 1076° F Melonite®
Name Steel Number 2 Hours 6 Hours HV 1 HV 10 HV 30
Ck15 1.1141 600 550 350 300 200
C45W3 1.1730 750 - 850 700 - 800 450 350 250
Ck60 1.1221 750 - 950 700 - 800  450  350  250 
20MnCr5 1.7147  800 - 950  800 - 900  600 450  400 
53MnV8 1.5141 850 - 950   800 - 900  450 400   350
90MnV8 1.2842 1000 - 1200   900 - 1100 550  450  400 
42CrMo4 1.7225 900 - 1200   900 - 1100 650   500 450 
X19NiCrMo4 1.2764  900 - 1100 900 - 1000  600  500  450 
55NiCrMov6 1.2713 1200 - 1400  1150 - 1300  650  550  500 
56NiCrMoV7 1.2714 1300 - 1500  1250 - 1400  650  550  500 
50NiCr13 1.2721 1200 - 1350  1100 - 1200  600  500  450 
X20Cr13 1.2082 1000 - 1200  1000 - 1200  > 900  600  450 
X35CrMo17 1.4122 1000 - 1200  1000 - 1200  > 900  700  550 
X210Cr12 1.2080 1500 - 1700  1400 - 1600  > 800  600  450 
X210CrW12 1.2436 1500 - 1800 1400 - 1650  > 800  600 500
X165CrMoV12 1.2601 1400 - 1900 1400 - 1700 > 800 650 500
45CrMoW58 1.2603 1500 - 1800 1400 - 1700 800 700 600
X32CrMoV33 1.2365 1700 - 1800 1600 - 1750 > 900 850 700
X38CrMoV51 1.2343 1700 - 1900 1500 - 1700 > 900 850 700
X37CrMoW51 1.2606 1700 - 1900 1600 - 1800 > 900 800 700
X30WCrV53 1.2567 1700 - 1900 1600 - 1800 > 900 850 750
X30WCrV93 1.2581 1500 - 1800 1500 - 1700 > 900 850 800