Steels
Steels
MICROFOND BRESCIANA SRL – Commonly used steels for Investment Casting | ||||||||||||||||
| Chemical composition (%) | Mechanical properties after treatment | Features and applications | |||||||||||||
Suggested treatment | R MPa | R (0,2%) MPa | Hardness | |||||||||||||
Title | Wr n. | Italian designation | C | Si | Mn | Cr | Ni | Mo | P | S | Altri |
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Case Hardening | 1.0402 1.1151 | C20 C22E | 0,18 0,24 | 0,55 max | 0,40 0,80 |
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| 0,035 max | 0,035 max |
| Annealing | 450 | 300 | 80 HRB | Reasonable mech. properties and good weldability. Low stressed components |
Case Hardening | 1.5714 | 16CrNi4 | 0,13 0,19 | 0,55 max | 0,70 1,00 | 0,60 1,00 | 0,80 1,10 |
| 0,035 max | 0,02 0,04 |
| Quenching and annealing | 1030 | 690 | 58-64 HRC | High strength and wear resistance, high surface hardness, good machinability (cemented) and heart toughness . Mechanical components subject to rolling and / or friction and excellent toughness: cams, pins, rollers, bearings |
Case Hardening |
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18NiCrMo5
| 0,15 0,21 | 0,55 max | 0,60 0,90 | 0,70 1,00 | 1,20 1,50 | 0,15 0,25 | 0,035 max | 0,035 max |
| Case Hardening | 1250 | 980 | 58-65 HRC | |
Heat treatable steel | 1.1181 | C35 | 0,32 0,39 | 0,55 max | 0,50 0,80 | 0,40 max | 0,40 max | 0,10 max | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 560-730 | 325-430 | 180-220 HRB | Good toughness and great machinability. Good weldability |
Heat treatable steel | 1.7218 | 25CrMo4 | 0,22 0,29 | 0,55 max | 0,60 0,90 | 0,90 1,20 |
| 0,15 0,30 | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 890-1000 | 650-800 | 20-44 HRC | Excellent toughness. Mechanical components under fatigue. Motor industry and gun making. Good weldability of 25CrMo4
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Heat treatable steel | 1.7220 | 34CrMo4 | 0,30 0,37 | 0,55 max | 0,60 0,90 | 0,90 1,20 |
| 0,15 0,30 | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 890-1100 | 690-890 | 23-49 HRC | |
Heat treatable steel | 1.0511 1.1186 | C40 C40E | 0,37 0,44 | 0,55 max | 0,50 0,80 |
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| 0,035 max | 0,035 max |
| Quenching and annealing | 590-750 | 350-450 | 185-225 HRB | Higher mech. properties and hardness than C35 but lower toughness. |
Heat treatable steel | 1.7225 | 42CrMo4 40CrMo4 | 0,38 0,45 | 0,55 max | 0,60 0,90 | 0,90 1,20 |
| 0,15 0,30 | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 880-1300 | 690-1060 | 27-57 HRC | Good performance. High stress components, both static and dynamic shafts, connecting rods, gears, pistons, gaskets. The 39NiCrMo3 requires less precautions in quenching |
Heat treatable steel | 1.6511 | 39NiCrMo3 38NiCrMo4 | 0,34 0,42 | 0,75 max | 0,50 0,80 | 0,70 1,00 | 0,70 1,00 | 0,15 0,25 | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 1020 | 880 | 31 HRC | |
Nitriding steel | 1.8515 | 30CrMo12 | 0,27 0,34 | 0,40 0,70 | 0,75 max | 2,70 3,30 |
| 0,30 0,40 | 0,035 max | 0,02 0,04 |
| Quenching and annealing | 1100 | 950 | 34 HRC | Components subject to high specific loads and under fatigue; better resistance to abrasive wear, adhesive and binding compared to quenched and tempered steels (treatment advisable) |
Nitriding steel | 1.8509 | 41CrAlMo7 | 0,38 0,45 | 0,50 0,70 | 0,40 0,80 | 1,50 1,80 |
| 0,20 0,35 |
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| Al 0,80 1,20 | Quenching and annealing | 1100 | 950 | 34 HRC | |
Spring steel | 1.8159 | 50CrV4
| 0,47 0,55 | 0,50 max | 0,70 1,10 | 0,90 1,20 |
| 0,25 0,40 | 0,035 max | 0,035 max | V 0,10 0,25 | Hardening | 960-1390 | 830-1241 | 30-60 HRC | Components requiring a high elastic limit and fatigue strength without deformation |
Sofmagnetic | 1.0884 | FeSi3 | 0.10 max | 2,50 3,00 |
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| Annealing | ≥ 500 | ≥ 300 | 120-160 HV1 | High magnetic permeability steel |
Austenitic stainless st. | 1.4301 | AISI 304 1 | 0,08 Max | 1,00 max | 2,00 max | 17,0 19,5 | 8,00 10,5 |
| 0,045 max | 0,03 max |
| Solubilisation | 485-585 | 275-345 |
| Excellent corrosion resistance (304 and 316). Good corrosion resistance at elevated temperatures (316): shipping, food, auto, chemical, petrochemical, pharmaceutical. These teels are not hardenable
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Austenitic stainless st. | 1.4401 | AISI 316 1 | 0,08 max | 1,00 max | 2,00 max | 16,5 18,5 | 10,0 13,0 | 2,00 2,50 | 0,045 max | 0,03 max |
| Solubilisation | 485-585 | 275-345 |
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Heatproof stainless st. | 1.4845 | AISI 310 | 0,25 max | 1,50 max | 2,00 max | 24,0 26,0 | 19,0 22,0 |
| 0,045 max | 0,03 max |
| Solubilisation | 415-515 | 205-275 |
| High corrosion resistance at elevated temperatures |
Precipitation hardening | 1.4542 | AISI 630 | 0,07 max | 0,70 max | 1,50 max | 15,0 17,0 | 3,00 5,00 |
| 0,045 max | 0,03 max | 3,00≤Cu ≤5,00 5xC≤Nb ≤0,45 | Solubilisation and hardening | 1030-1310 | 960-1100 | 34-44 HRC | Combines excellent mechanical performance with good resistance to corrosion. Military and aerospace |
Martensitic stainless st. | 1.4057 | AISI 431 | 0,12 0,22 | 1,00 max | 1,50 max | 15,0 17,0 | 1,50 2,50 |
| 0,045 max | 0,03 max |
| Hardening | 750-1100 | 515-720 | 20-40 HRC | Low corrosion resistance but excellent mechanical performance. Centrifugal pump shafts and bodies
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Martensitic stainless st. | 1.4021 | AISI 420 A 2 | 0,16 0,25 | 1,00 max | 1,50 max | 12,0 14,0 |
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| 0,045 max | 0,03 max |
| Hardening | 1390-1550 | 890-1440 | 30-52 HRC | Low corrosion resistance but excellent mechanical performance. Knives and blades |
Martensitic stainless st. | 1.4125 | AISI 440 C 3 | 0.96 1,20 | 1 ,00 max | 1,00 max | 16,0 18,0 | 0,40 0,80 |
| 0,045 max | 0,03 max |
| Hardening | 750-950 | 550 | 40-55 HRC | Low corrosion resistance but excellent mechanical performance. Scissors, scalpels, injectors for engines |
Ferritic stainless st. | 1.4000 | AISI 430 | 0,08 max | 1,00 max | 1,00 max | 16,0 18,0 |
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| 0,045 max | 0,03 max |
| Annealing | 430 | 250 | 195 HRB | Good atmospherical corrossion resistance and good wear resistance |
Bearing steel | 1.2067 | 100Cr6 | 0,92 1,13 | 0,12 0,38 | 0,21 0,49 | 1,35 1,65 |
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| 0,03 max | 0,03 max |
| Quenching and annealing | 1220-1580 | 960-1240 | 30-60 HRC | Components subject to wear and abrasion, as well as tension and compression. Fifth wheels, bearings, rollers
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Tool steel | 1.2080 | X210Cr12 | 1,90 2,20 | 0,10 0,40 | 0,15 0,45 | 11,0 13,0 |
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| 0,03 max | 0,03 max |
| Quenching and annealing |
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| 50-60 HRC | Cold work steel with good wear resistance, good resilient cutting and high hardness |
1) Also avalable in AISI 304L e 316L versions (where “L” stands for low carbon: C<0,03%) This table is just an indication; for further explanation or technical issues please contact our tech. dept.www.microfond.it |
MICROFOND BRESCIANA SRL–Commonly used steels for MIM (Metal Injection Moulding) | ||||||||||||||||
| Chemical composition (%) | Mechanical properties after treatment1 | Features and applications | |||||||||||||
Suggested treatment | R MPa | R (0,2%) MPa | Hardness | |||||||||||||
Title | Wr n. | Italian designation | C | Si | Mn | Cr | Ni | Mo | P | S | Altri | |||||
Case Hardening | 1.0301 | C10 | 0,15≤ | 0,40max | 0,30 0,66 |
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| 0,045 max | 0,045 max |
| Cementazione | 450 (≥400) | 300 (≥250) | 700 HV1 | Reasonable mech. properties and good weldability. Low stressed components |
Case Hardening | 1.6523 | 8620 (21NiCrMo2) | 0,18 0,23 |
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| 0,40 0,60 | 0,40 0,70 | 0,15 0,25 |
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| Cementazione, tempra e rinvenimento | 1100 (≥650) | 800 (≥400) | 58 HRC | High strength and wear resistance, high surface hardness, good machinability (cemented) and heart toughness . Mechanical components subject to rolling and / or friction and excellent toughness: cams, pins, rollers, bearings
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Case Hardening |
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FN02
| 0,1 |
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| 1,90 2,20 |
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| Tempra e distensione o cementazione | 550 (≥260) | 400 (≥150) |
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Heat treatable steel |
| FN08 | 0,60 0,80 |
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| 7,50 8,50 |
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| Tempra e rinvenimento | 1350 (700) | 1100 (400) | 40 HRC | Good performance. High stress components, both static and dynamic shafts, connecting rods, gears, pistons, gaskets. The 42CrMo4 requires less precautions in quenching
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Heat treatable steel | 1.6565 | 4340 (40NiCrMo6) | 0,35 0,45 |
| 0,60 0,90 | 0,90 1,40 | 1,40 1,70 | 0,20 0,30 | 0,035 max | 0,02 0,04 |
| Tempra e rinvenimento | 850-1300 | 680-1240 | 20-55 HRC | |
Heat treatable steel | 1.7225 | 42CrMo4 | 0,38 0,45 |
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| 0,90 1,20 |
| 0,15 0,30 | 0,035 max | 0,02 0,04 |
| Tempra e rinvenimento | 1450 (650) | 1250 (400) | 45 HRC | |
Soft Magnetic | 1.0884 | FeSi3 | 0.10 max | 2,50 3,00 |
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| Ricottura | ≥ 500 | ≥ 300 | 120-160 HV1 | High magnetic permeability steel |
Nichel Free Stainless steel |
| PANACEA | 0,08 Max | 1,00 max | 2,00 max | 17,0 19,5 | 8,00 10,5 |
| 0,045 max | 0,03 max |
| Solubilizzato | 1000 | 650 |
| Stainless steel with low nickel content. Suitable for skin contact applications that require low release of nickel |
Austenitic stainless st. | 1.4404 | AISI 316L | 0,08 max | 1,00 max | 2,00 max | 16,5 18,5 | 10,0 13,0 | 2,00 2,50 | 0,045 max | 0,03 max |
| Solubilizzato | 510 | 180 |
| Excellent corrosion resistanceGood corrosion resistance at elevated temperatures (316): shipping, food, auto, chemical, petrochemical, pharmaceutical. These teels are not hardenable |
Heatproof stainless st. | 1.4841 | AISI 310 | 0,20 0,50 | 1,30 max | 1,50 max | 24,0 26,0 | 19,0 22,0 |
| 0,045 max | 0,03 max | 1,20≤Nb ≤1,50 | Solubilizzato | (750) | (400) |
| High corrosion resistance at elevated temperatures |
Precipitation hardening | 1.4542 | AISI 630 | 0,07 max | 1,00 max | 1,00 max | 15,0 17,5 | 3,00 5,00 |
| 0,045 max | 0,03 max | 3,00≤Cu ≤5,00 5xC≤Nb ≤0,45 | Solubilizzato e indurito | 1100 (950) | 950 (550) | 38 HRC (20-32 HRC) | Combines excellent mechanical performance with good resistance to corrosion. Military and aerospace |
Precipitation hardening | 1.4021 | AISI 420 A | 0,18 0,30 | 1,00 max | 1,00 max | 12,0 14,0 |
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| 0,045 max | 0,03 max |
| Tempra e rinvenimento | 1550 | 1300 | 48 HRC | Low corrosion resistance but excellent mechanical performance. Knives and blades |
Martensitic stainless st. | 1.4125 | AISI 440 Nb | 0.96 1,25 | 1 ,00 max | 1,00 max | 16,0 18,0 | 0,60 max | 0,75 max | 0,045 max | 0,03 max | 2,5≤ Nb ≤3,5 | Tempra | 750-950 | 550 | 60 HRC | Low corrosion resistance but excellent mechanical performance. Scissors, scalpels, injectors for engines |
Ferritic stainless st. | 1.4016 | AISI 430 | 0,08 max | 1,00 max | 1,00 max | 15,5 17,5 |
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| 0,045 max | 0,03 max |
| Ricottura | 350 | 250 | 125 HV10 | Good atmospherical corrossion resistance and good wear resistance |
Bearing steel | 1.3505 | 100Cr6 | 0,90 1,05 |
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| 1,35 1,65 |
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| Tempra e distensione | 1220-1580 | 960-1240 | 30-60 HRC | Components subject to wear and abrasion, as well as tension and compression. Fifth wheels, bearings, rollers |
Tool steel | 1.3342 | AISI M2 | 0,95 1,05 |
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| 3,80 4,50 |
| 4,50 5,50 |
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| 5,50≤W ≤6,75 1,75≤ V ≤2,20 | Tempra e rinvenimento | (≥ 1200) | (≥ 800) | 50-60 HRC | Cold work steel with good wear resistance, good resilient cutting and high hardness |
1) Figures in brackets refer to the mechanical properties (approximate) of the components as sintered, without any heat treatment www.microfond.it |