Materials
At CIREX, we always start with the product’s functionality. Once the functionality is clear, the product is developed further. An essential part of this is the choice of material. A good design depends entirely on the proper choice of material. It’s important to know the properties that the steel must possess. Consider, for example:
- Mechanical properties (hardness, tensile strength, elongation and elasticity)
- Thermal properties (heat resistance)
- Chemical properties (acid resistance and the ability to withstand corrosion)
Metallurgical specialists at CIREX will be glad to help you choose the optimum alloy for your application. Also when it comes to choosing the right chemical composition, structure, hardness, tensile strength or heat resistance.
Download materials
Case Hardening Steel
Structural components with high levels of abrasion resistance combined with a tough core. Products that are subject to conditions requiring both abrasion resistance and toughness. For example: Shifting finger, Knitting mechanism, Door closure system.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strenght (N/mm²) | Elongation (%) | Hardness |
| 15 | 1.0401 | C15 / GS38 | SAE M1015 | Case-hardened | ≥ 430 | 700-900 | ≈ 12 | ≥ 700 HV |
| 902 | 1.5860 | 14NiCr18 | – | Carburizing | – | – | – | – |
| 16 | 1.5919 | G15CrNi6 | SAE 3115 | Case-hardened | ≥ 680 | 1000-1300 | ≈ 8 | ≥ 700 HV |
| 936 | 1.7015 | 15Cr3 | – | Case-hardened | ≥ 440 | 690-880 | ≈ 11 | ≈ 174 HB |
| 17 | 1.7131 | G16MnCr5 | SAE 5115 | Case-hardened | ≥ 600 | 800-1100 | ≈ 10 | ≥ 700 HV |
Construction Steel
Construction steel for components with a high abrasion resistance combined with a high tensile strength. For example: Door closure system, Sprocket, Oilsupply bend.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strenght (N/mm²) | Elongation (%) | Hardness |
| 10 | 1.0503 | C45 | GS 60 | Quench & temper | ≥ 550 | ≥ 700 | ≥ 8 | 15-25 HRC |
| 935 | 1.5028 | C30 | – | Soft annealing | ≥ 260 | ≥ 520 | ≥ 18 | 80-100 HRB |
| 951 | 1.6220 | G20Mn5 | – | Quench & temper | ≥ 300 | ≥ 500 | ≥ 22 | 150-195 HB |
| 12 | 1.6582 | 34CrNiMo6 | – | Quench & temper | ≥ 950 | ≥ 1100 | ≥ 6 | 34-40 HRC |
| 937 | 1.7034 | 37Cr4 | – | Quench & temper | ≥ 650 | ≥ 750 | ≥ 12 | ≥ 20 HRC |
| 9 | 1.7218 | 25CrMo4 | – | Quench & temper | ≥ 600 | ≥ 750 | ≥ 10 | ≤ 20 HRC |
| 910 | 1.7220 | 34CrMo4 | – | Quench & temper | ≥ 700 | ≥ 850 | ≥ 10 | ≤ 25 HRC |
| 11 | 1.7225 | GS42CrMo4 | AISI 4140 | Quench & temper | ≥ 800 | ≥ 900 | ≥ 9 | 27-34 HRC |
Tool Steel
A steel alloy characterised by a high degree of abrasion resistance and toughness. Therefore suitable for tools that must endure heavy loads. For example: Valve bridge, Rocker arm, Shifting cylinder, Injector clamp.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 19 | 1.2346 | GX38CrMoV5-1 | AISI H11 | Tempering | ≥ 950 | ≥ 1100 | ≥ 4 | 32-40 HRC |
| 925 | 1.2361 | X91CrMoV18 | – | Soft annealing | – | – | – | ≤ 30 HRC |
| 48 | 1.2363 | X100CrMoV5 | – | Hardened | – | – | – | 58-63 HRC |
| 44 | 1.2419 | 105WCr6 | – | Hardened | – | – | – | ≈ 65 HRC |
| 45 | 1.2436 | X210CrW12 | AISI D6 | Quench & temper | – | – | – | ≥ 57 HRC |
| 905 | 1.2562 | 142WV13 | – | Hardened | – | – | – | ≈ 265 HB |
| 43 | 1.2602 | GX165CrMoV12 | – | Quench & temper | – | – | – | ≥ 55 HRC |
| 901 | 1.2710 | 45NiCr6 | – | Quench & temper | – | – | – | ≥ 48 HRC |
| 915 | 1.2721 | 50NiCr13 | – | Quench & temper | – | – | – | ≥ 53 HRC |
| 950 | 1.3505 | 100Cr6 | – | Soft annealing | – | – | – | ≤ 25 HRC |
Stainless Steel
An alloy characterised by a high degree of corrosion-resistance and toughness. Stainless steel is often used in corrosive environments. For example: Fuel tank mounting bracket, Rotor & stator, Transport wheel.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 947 | 1.4008 | GX7CrNiMo12-1 | AISI 410 | Quench & temper | ≥ 440 | ≥ 590 | ≥ 15 | ≥ 90 HRB |
| 7 | 1.4027 | GX20Cr14 | DIN 17445 / SEW 410 | Quench & temper | ≥ 400 | ≥ 590 | ≥ 15 | 90-100 HRB |
| 957 | 1.4036 | GX46Cr13 | – | Quench & temper | – | – | – | 49-53 HRC |
| 22 | 1.4059 | GX22CrNi17 | SEW 410 | Quench & temper | ≥ 750 | ≥ 800 | ≥ 8 | 22-30 HRC |
| 941 | 1.4162 | X2CrMnNiN21-5-1 | LDX 2101® | Solution annealing & quench | – | – | – | – |
| 25 | 1.4308 | GX5CrNi19-10 | AISI 304 / CF8 | As cast | ≥ 175 | ≥ 440 | ≥ 30 | 75-90 HRB |
| 34 | 1.4309 | GX2CrNi19-11 | AISI 304L / CF3 | As cast | ≥ 210 | 440-460 | ≥ 30 | 70-80 HRB |
| 24 | 1.4317 | GX4CrNi13-4 | – | Quench & temper | ≥ 650 | 800-1000 | ≥ 15 | 22-30 HRC |
| 27 | 1.4408 | GX5CrNiMo19-11-2 | AISI 316 / CF8M | As cast | ≥ 200 | ≥ 450 | ≥ 20 | 75-90 HRB |
| 28 | 1.4409 | GX2CrNiMo19-11-2 | AISI 316L / CF3M | As cast | ≥ 200 | ≥ 450 | ≥ 20 | 75-90 HRB |
| 945 | 1.4468 | GX2CrNiMoN25-6-3 | – | As cast | – | ≥ 650 | ≥ 22 | ≥ 92 HRB |
| 955 | 1.4470 | GX2CrNiMoN22-5-3 | – | Normalized | ≥ 450 | 680-880 | ≥ 30 | ≥ 93 HRB |
| 26 | 1.4827 | GX8CrNiNb19-10 | – | Solution annealing & quench | ≥ 175 | ≥ 440 | ≥ 20 | 75-90 HRB |
| 924 | 1.4815 | GX8CrNi19-10 | AISI 304 | As cast | – | ≥ 450 | ≥ 20 | 70-90 HRB |
Heat Resistant Steel
Heat-resistant steels are used in environments in which products are subject to high temperatures. Heat-resistant products retain their shape, strength and dimensions when exposed to high temperatures.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 953 | 1.4848 | GX40CrNiSi25-20 | SEW 595 / EN 10295 | As cast | ≥ 220 | ≥ 450 | ≥ 8 | 150-220 HB |
Aluminium
Aluminium is mainly used in the aviation industry because of its low weight and corrosion resistance.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| A 356 | AlSi7MgO,3 | – | – | 195 | 265 | 3 | >70 HV | |
| A 357 | AlSi7Mg0,6 | – | SOPHIA® cooling process | 270 | 330 | 3 | >85 HV | |
| A 357 | AlSi7Mg0,6 | – | – | 230 | 290 | 3 | >85 HV | |
| C 355 | AlSi5Cu1,3Mg | – | SOPHIA® cooling process | 193 | 241 | 2 | >90 HV | |
| RR 350 T9 | AlCu5Ni1,5MNSbCoTiZr | – | – | 130 | 180 | 1 | ||
| RR 350 T6 | AlCu5Ni1,5MNSbCoTiZr | – | SOPHIA® cooling process | 150 | 190 | 1 |
Special Alloys
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| – | 1.4460 | GX8CrNiMo27-5 | AISI 329 / Duplex | Quench | – | ≈ 710 | ≈ 14 | 91-99 HRB |
| – | 1.4462 | GX2CrNiMoN22-5-3 | ASTM A240 / Duplex | Normalized | – | 680-880 | ≥ 30 | ≥ 93 HRB |
Nodular Cast Iron
Parts cast SiMo or Ni-Resist are special, heat-resistant alloys that are highly resistant to corrosive and especially hot gasses. No product deformation takes place with exposure to high temperatures. For example: Exhaust gas recirculation.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 90 | – | GJS-XSiMo5-1 | – | Ferritic annealing | ≥ 550 | ≥ 650 | ≥ 3 | 200-270 HB |
| 91 | – | Ni-ResistD-5S | – | Stabilizing | ≥ 250 | ≥ 450 | ≥ 10 | 131-193 HB |
Nickel Alloys
Nickel alloys are characterised by a high degree of resistance to abrasion, rust and heat. This alloy retains its shape, strength and dimensions when exposed to high temperatures. For example: NOx cover.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 73 | 2.4603 | NiCr30FeMo | HASTELLOY® G-30® alloy | As cast | – | – | ≈ 8 | – |
| 74 | 2.4856 | NiCr22Mo9Nb | INCONEL® alloy 625 | Soft annealing | – | – | – | ≤ 240 HB |
| ” | ” | ” | ” | As cast | ≥ 275 | ≥ 485 | ≥ 25 | – |
| 963 | 1.3912 | Ni36 | NILO® alloy 36 / Invar 36 | As cast | ≈ 210 | ≈ 500 | ≥ 20 | ≈ 80 HRB |
| – | 1.3981 | NiCo29-18 | NILO K / Kovar | As cast | – | – | – | ≈ 80 HRB |
| – | 1.4462 | GX2CrNiMoN22-5-3 | ASTM A240 / Duplex | Normalized | – | 680-880 | ≥ 30 | ≈ 93 HRB |
Cobalt Alloys
Super-alloy for components requiring high abrasion resistance and corrosion resistance. These alloys are difficult to process due to their extreme hardness.
| CX no. | Mat. no. | Symbol | Similar to | Heat treatment | Proof stress Rp0,2 (N/mm²) | Tensile strength (N/mm²) | Elongation (%) | Hardness |
| 86 | – | GCoCr30W4 | STELLITE® 6 | As cast | – | ≥ 750 | – | 37-43 HRC |
