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- NITRIDING / NITROCARBURIZING -

NITRIDING / NITROCARBURIZING

Perfect for components that are subject to heavy loading, controlled nitriding/nitrocarburizing imparts a high surface hardness which results in a higher resistance to wear, scuffing, galling, seizure, and an improvement in corrosion. Controlled nitriding/nitrocarburizing allows the adjustment of different case properties, making it adaptable for a broader range of applications. A low temperature process, nitriding/nitrocarburizing minimizes distortion of the finished parts.

 

Benefits include

  • Control of the thickness of the compound (white) layer and its properties
  • Elimination of closed nitride networks within the diffusion zone
  • Excellent control of the case depth
  • Uniformly hardened even small bores, tight grooves, and sharp edges
  • Increased wear/corrosion resistance
  • Excellent control of the surface hardness
  • Excellent process reliability
  • No brittleness
  • No part distortion
  • Green technology, no waste pollution
  • Conformance to AMS 2759-10 and 2759-12 specifications
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Nitrex Turnkey Systems & Technologies

Nitrex nitriding / nitrocarburizing systems and technologies deliver superior quality and reliability year after year while optimizing the performance and cost efficiency of the application.

   

 

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HT services

GAS NITRIDING NITREG®

NITREG®-C CONTROLLED NITROCARURIZING

PLASME (ION) NITRIDING

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UPC Upgrades

UPC-Marathon control upgrade solutions are modular in design to improve nitriding/nitrocarburizing operations,
meet industry standards requirements, and ultimately provide precise and reliable process control.

HORIZONTAL VACUUM FURNACE SERIES

 

Nitriding is used in the aerospace, automotive, defense, energy, gearing, industrial, plastics, and tooling industries for applications ranging from crankshafts to camshafts, die-cast dies, extrusion dies, forging dies, gearbox assemblies, gears, injectors, landing gears, molds, valve parts, springs, tools, and many more.

Nitriding/Nitrocarburizing materials include a number of steel types:

  • Carbon steels
  • Hardenable alloy steels
  • Special nitriding steels such as Nitralloy
  • High alloy steels: tool steels, heat-resistant steels (e.g. valve steels) etc.
  • Stainless steels (ferritic, martensitic, austenitic, PH grades)
  • Cast iron (grey or nodular)
NITRIDING STEELS
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
N135M 38CrAlMoA C=0.38 Cr=1.7 Mo=0.3 Al=1 350/36 1190-1290
Nitralloy N C=0.35 Cr=115 Ni=3.5 Mo=0.25 350/36 1100-1200
34CrAlNi7 C=0.42 Cr=3 Mo=1.2 V=0.20 350/36 1190-1290
42CrMoV12 42CrMoV12 C=0.42 Cr=3 Mo=1.2 V=0.20 490 / 48 1050-1150
31CrMo12 C=0.32 Cr=3 Mo=0.4 320 / 32 870-920
30CrMoV9 320 / 32C=0.30 Cr=2.5 Mo=0.2 V=0.15 320 / 32 900-930
25CrMo20 C=0.25 Cr=6 Mo=0.20 280 / 27 1000-1100
OTHER HARDENABLE ALLOY STEELS
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
4130 30CrMo4 C=0.30 Cr=1 Mo=0.2 300 / 30 640 – 680
4140 42CrMo4 C=0.40 Cr=1 Mn=0.9 Mo=0.2 300 / 30 650 – 700
4340 C=0.40 Cr=0.8 Ni=1.8 Mo=0.25 310 / 31 650 – 700
30NiCrMo12 C=0.30 Cr=0.8 Ni=2.8 Mo=0.12 310 / 31 600 – 650
35NiCrMo15 C=0.35 Cr=1.7 Ni=3.8 Mo=0.15 330 / 33 800 – 850
CARBON STEELS
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
1010 C10 C=0.10 Mn=0.50 160 320 – 380
1020 C20 C=0.20 Mn=0.50 180 320 – 380
1030 C30 C=0.30 Mn=0.7 180 380 – 420
1045 C45 C=0.45 Mn=0.7 200 420 – 470
1060 C60 C=0.60 Mn=0.7 250 / 22 525
CARBURIZING ALLOY STEELS
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
5115 16MnCr5 C=015 Cr=0.8 Mn=0.9 180 660 – 720
20 MnCr5 C=0.20 Cr=1.15 Mn=1.3 240 / 21 750 – 800
8620 C=0.20 Cr=0.5 Ni=0.6 Mo=0.2 190 500 – 520
18NiCrMo5 C=0.18 Cr=0.9 Mn=0.8 Ni=1.3 Mo=0.25 210 700 – 750
TOOL STEELS
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
D2 C=1.5 Cr=12 Mo=1 V=1.1 Co=1 580 / 54 1270 – 1370
X150CrMo12 C=1.5 Cr=12 Mo=0.8 580 / 54 1270 – 1370
H13 AFNOR Z40 C=0.40 Cr=5.2 Mo=1.5 V=1 480 / 48 1150 – 1280
X38CrMoV5.1 C=0.40 Cr=5.2 Mo=1.1 V=0.4 480 / 48 1180 – 1280
40CrMnMo7 C=0.40 Cr=2 Mn=1.5 Mo=0.2 340 / 34 870 – 930
M7 DIN 1.3348 C=1 Cr=3.8 Mo=9 W=1.8 V=2 787 / 63 1100
M42 DIN 1.3247 C=1.1 Cr=3.9 Mo=9.5 W=1.5 V=1.1 Co=8. 865 / 66 1100
STAINLESS STEEL
GRADE AISI GRADE UNI MAIN ALLOY COMPONENTS CORE HARDNESS HV/HRC SURFACE HARDNESS HV1
X5CrNiMo18.10 C=.07 Cr=18 Ni=10 Mo=2 230 1150 – 1250
316L X2CrNiMo18.10 C=.03 Cr=18 Ni=12 Mo=2 230 1150 – 1250
440B X90CrMoV18 C=0.0 Cr=17 Mn=1 Si=1 Mo=0.75 420 / 43 1000 – 1350
17-4 PH C=.07 Cr=16 Mn=1 Si=1 Ni=4 Cu=4 Nb=.3 300 / 30 950 – 1100