- 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 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

HEAT TREATING SERVICES

The following heat treating services are among those provided by Nitrex HTS:

Controlled Nitriding NITREG®

Controlled Nitrocarburizing NITREG®-C

RFQ

 

NITREX TURNKEY NITRIDING SYSTEMS

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

Turnkey Systems

RFQ

 

UPC-MARATHON CONTROL UPGRADES

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

Nitriding / Nitrocarburizing Control Upgrade

RFQ

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
  • Alloy steels that can be hardened
  • 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