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Mavi Çelik Makina Metal San.Ve Tic.Ltd.Şti.
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Adres: 1200. CADDE (ESKİ 29) 120-122

Tel 1: 0 (312) 394 04-70 () -71

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Email 1: haydar@mavicelik.com.tr

Email 2: info@mavicelik.com.tr

Web: http://www.mavicelik.com.tr/

Breeding Steels

In addition to the hardenability properties, high strength and ductility are also required in tempered steels. In order to achieve a sufficient level of hardness, tempered steels contain relatively high carbon content. Since the hardness depth is the most important criterion for thick-section parts, these parts are manufactured from alloyed tempered steels.

Part dimensions and strength values are at the forefront in the selection of tempered steels. Unalloyed tempered steels can only be efficient in small cross-section parts. For thick-section parts, homogeneity of hardness distribution depends on the alloying of the steel. The variation of the hardness distribution according to the material alloys can be observed with the results of the Jominy test. Jominy test in simple terms; It refers to the hardening values at distances from the cooled end by cooling only one end of a rod-shaped material heated to its curing temperature.

As the tempered steels can be flame and induction hardened, they can also be flame and induction hardened after curing. In the selection of the material to be heat treated in this way, besides the chemical composition, the hardness value to be obtained on the surface and the hardening depth are taken into consideration. While the depth of hardness can be 3 – 4 mm in unalloyed steels, this depth reaches 10 – 12 mm in alloyed steels. In addition, it is more appropriate to use high-carbon - low-manganese Cf quality steels, since high manganese will cause cracking hazard during induction hardening. In addition, the decrease in the risk of cracking is closely related to the small grain structure of the material.

Breeding Steels are collected in 4 main groups according to their chemical composition.

1. Unalloyed tempered steels

2.Manganese Alloy Reclamation steels

3.Chrome alloyed steels

4.Chrome-Molybdenum alloyed steels

In Unalloyed Steels, the curing strength increases with the amount of carbon. The lowest yield point is between 370 N/MM' 2 (C: 0.25%) and 570 N/MM' 2 (c: 0.50) up to 16 mm diameter.16- For sizes between 40 mm diameter 50-80 N/MM' 2 is lower.

Since manganese increases the hardenability in Manganese Alloyed steels, the yield limit in 30 MN 4 and 40 MN 4 steels shows the properties of C 60 steel.

Chromium element increases hardenability considerably and has a positive effect on plasticity in chrome alloyed steels. For example, in 40 Cr 4 steels, the minimum yield is 700 N/MM' 2 in the diameter range of 16-40 mm.

Molybdenum increases its hardenability more strongly than chromium. It also increases temper strength and reduces the possibility of temper brittleness.

BREEDING STEELS AND COMPOSITIONS
material no. RELIGION SAE / AISI NS Simax mn Pmax Smax cr B.C Ni V
1.0402 C 22 1020 0.18-0.25 0.40 0.30-0.60 0.045 0.045 – – – –
1.0501 C 35 1035 0.32-0.39 0.40 0.50-0.80 0.045 0.045 – – – –
1.0503 C 45 1045 0.42-0.50 0.40 0.50-0.80 0.045 0.045 – – – –
1.0535 C 55 1055 0.52-0.60 0.40 0.60-0.90 0.045 0.045 – – – –
1.0601 C 60 1060 0.57-0.65 0.40 0.60-0.90 0.045 0.045 – – – –
1,1151 Ck 22 1020/1023 0.18-0.25 0.40 0.30-0.60 0.035 0.035 – – – –
1.1180 cm 35 1035 0.32-0.49 0.40 0.50-0.80 0.035 0.020-0.035 – – – –
1.1181 Ck 35 1035 0.32-0.39 0.40 0.50-0.80 0.035 0.035 – – – –
1.1186 Ck 40 1040 0.37-0.44 0.40 0.50-0.80 0.035 0.035 – – – –
1.1191 Ck 45 1045 0.42-0.50 0.40 0.50-0.80 0.035 0.035 – – – –
1.1201 cm 45 1045 0.42-0.50 0.40 0.50-0.80 0.035 0.020-0.035 – – – –
1.1203 Ck 55 1055 0.52-0.60 0.40 0.60-0.90 0.035 0.035 – – – –
1.1206 Ck 50 1050 0.45-0.55 0.40 0.60-0.90 0.035 0.035 – – – –
1.1209 cm 55 1055 0.52-0.60 0.40 0.60-0.90 0.035 0.020-0.035 – – – –
1.1221 Ck 60 1060 0.57-0.65 0.40 0.60-0.90 0.035 0.035 – – – –
1.1223 cm 60 – 0.57-0.65 0.40 0.60-0.90 0.035 0.020-0.035 – – – –
1.5038 40 Mn 4 1039 0.36-0.44 0.25-0.50 0.80-1.10 0.035 0.035 – – – –
1.5065 28 Mn 6 1330 0.25-0.32 0.40 1.30-1.65 0.035 0.035 – – – –
1.6511 36 CrNiMo 4 9840 0.32-0.40 0.40 0.50-080 0.035 0.035 0.90-1.20 0.15-0.30 0.90-1.20 –
1.6580 30 CrNiMo 8 – 0.26-0.33 0.40 0.40-070 0.035 0.035 1.40-1.70 0.30-0.50 1.80-2.20 –
1.6582 34CrNiMo 6 4340 0.30-0.38 0.40 0.30-0.60 0.035 0.035 1.80-2.20 0.15-0.30 1.40-1.70 –
1.7003 38 Cr 2 – 0.34-0.41 0.40 0.50-0.80 0.035 0.035 0.40-0.60 – – –
1.7006 46 Cr 2 5045 0.42-0.50 0.40 0.50-0.80 0.035 0.035 0.40-0.60 – – –
1.7033 34 Cr 4 5132 0.30-0.37 0.40 0.60-0.90 0.035 0.035 0.90-1.20 – – –
1.7034 37 Cr 4 5135 0.34-0.41 0.40 0.60-0.90 0.035 0.035 0.90-1.20 – – –
1.7035 41 Cr 4 5140 0.38-0.45 0.40 0.60-0.90 0.035 0.035 0.90-1.20 – – –
1.7037 34 CrS 4 – 0.30-0.37 0.40 0.60-0.90 0.035 0.020-0.035 0.90-1.20 – – –
1.7038 37 CrS 4 – 0.34-0.41 0.40 0.60-0.90 0.035 0.020-0.035 0.90-1.20 – – –
1.7039 41 CrS 4 – 0.38-0.45 0.40 0.50-0.80 0.035 0.020-0.035 0.90-1.20 – – –
1.7218 25CrMo 4 4130 0.22-0.29 0.40 0.50-0.80 0.035 0.035 0.90-1.20 0.15-0.30 – –
1.7220 34CrMo 4 4135;4137 0.30-0.37 0.40 0.50-0.80 0.035 0.035 0.90-1.20 0.15-0.30 – –
1.7225 42CrMo 4 4140 0.38-0.45 0.40 0.50-0.80 0.035 0.035 0.90-1.20 0.15-0.30 – –
1.7226 34CrMoS 4 – 0.30-0.37 0.40 0.50-0.80 0.035 0.020-0.035 0.90-1.20 0.15-0.30 – –
1.7227 42CrMoS 4 – 0.38-0.45 0.40 0.50-0.80 0.035 0.020-0.035 0.90-1.20 0.15-0.30 – –
1.7228 50CrMo 4 4150 0.46-0.51 0.40 0.50-0.80 0.035 0.035 0.90-1.20 0.15-0.30 – –
1.7361 32CrMo12 4 – 0.28-0.35 0.40 0.40-0.70 0.035 0.035 2.80-3.30 0.30-0.50 0.30 –
1.7707 30 CrMoV 9 – 0.26-0.34 0.40 0.40-0.70 0.035 0.035 2.30-2.70 – – 0.10-0.20
1.8159 50 CrV 4 6150 0.47-0.55 0.40 0.70-1.10 0.035 0.035 0.90-1.20 – – 0.10-0.20

MECHANICAL PROPERTIES OF BREEDING STEELS
material no. RELIGION SAE / AISI FLOW LIMIT(Re) ?Mpa TENSILE STRENGTH(Rm) Mpa Elongation at Break (A) LO=5 D0 SECTION CONTRACTING(Z) ?%
? 16MM ? >16-40? MM ? >40-100? MM ? >100-160? MM ?? 16MM ? >16-40? MM ? >40-100? MM ? >100-160? MM ?? 16MM ? >16-40? MM ? >40-100? MM ? >100-160? MM ?? 16MM ? >16-40? MM ? >40-100? MM ? >100-160? MM
1.0402 C 22 1020 350 300 550-700 500-650 20 22 40 45
1.0501 C 35 1035 430 370 320 630-780 600-750 550-700 17 19 20 35 40 45
1.0503 C 45 1045 500 430 370 700-850 650-800 630-780 14 16 17 30 35 40
1.0535 C 55 1055 550 500 430 800-950 750-900 700-850 12 14 15 25 30 35
1.0601 C 60 1060 580 520 450 850-1000 800-950 750-900 11th 13 14 20 25 30
1,1151 Ck 22 1020/1023 350 300 550-700 500-650 20 22 50 50
1.1180 cm 35 1035 430 370 320 630-780 600-750 550-700 17 19 20 40 45 50
1.1181 Ck 35 1035 430 370 320 630-780 600-750 550-700 17 19 20 35 40 45
1.1191 Ck 45 1045 500 430 370 700-850 650-800 630-780 14 16 17 35 40 45
1.1201 cm 45 1045 500 430 370 700-850 650-800 630-780 14 16 17 35 40 45
1.1203 Ck 55 1055 550 500 430 800-950 750-900 700-850 12 14 15 30 35 40
1.1209 cm 55 1055 550 500 430 800-950 750-900 700-850 12 14 15 30 35 40
1.1221 Ck 60 1060 580 520 450 850-1000 800-950 750-900 11th 13 14 25 30 35
1.1223 cm 60 – 580 520 450 850-1000 800-950 750-900 11th 13 14 25 30 35
1.5038 40 Mn 4 1039 635 540 440 880-1080 780-930 690-830 12 14 15 40 45 50
1.5065 28 Mn 6 1330 590 490 440 780-930 690-840 640-790 13 15 16 40 45 50
1.6511 36 CrNiMo 4 9840 900 800 700 600 1100-1300 1100-1200 900-1000 800-950 10 11th 12 13 45 50 55 60
1.6580 30 CrNiMo 8 – 1050 1050 900 800 1250-1450 1250-1450 1100-1300 1000-1200 9 9 10 11th 40 40 45 50
1.6582 34CrNiMo 6 4340 one thousand 900 800 700 1200-1400 1100-1300 1000-1200 900-1100 9 10 11th 12 40 45 50 55
1.7003 38 Cr 2 – 550 450 350 800-950 700-850 600-750 14 15 17 35 40 45
1.7006 46 Cr 2 5045 650 550 400 900-1100 800-950 650-800 11th 14 15 35 40 45
1.7033 34 Cr 4 5132 700 590 460 900-1100 800-950 700-850 11th 13 14 35 40 45
1.7034 37 Cr 4 5135 750 630 510 950-1150 850-1000 750-900 11th 13 14 35 40 45
1.7035 41 Cr 4 5140 800 660 560 1100-1200 900-1100 800-950 10 12 14 30 35 40
1.7037 34 CrS 4 – 700 590 460 900-1100 800-950 700-850 11th 13 14 35 40 45
1.7038 37 CrS 4 – 750 630 510 950-1150 850-1000 750-900 11th 13 14 35 40 45
1.7039 41 CrS 4 – 800 660 560 1100-1200 900-1100 800-950 10 12 14 30 35 40
1.7218 25CrMo 4 4130 700 600 450 400 900-1100 850-950 700-800 650-800 12 14 15 16 50 55 60 60
1.7220 34CrMo 4 4135;4137 800 650 550 500 1000-1200 900-1000 800-950 750-900 11th 12 14 15 45 50 55 55
1.7225 42CrMo 4 4140 900 750 650 550 1100-1300 1100-1200 900-1100 800-950 10 11th 12 13 40 45 50 50
1.7226 34CrMoS 4 – 800 650 550 500 1100-1200 900-1100 800-950 750-900 11th 12 14 15 45 50 55 55
1.7227 42CrMoS 4 – 900 750 650 550 1100-1300 1000-1200 900-1100 800-950 10 11th 12 13 40 45 50 50
1.7228 50CrMo 4 4150 900 780 700 650 1100-1300 1000-1300 900-1100 800-1000 9 10 12 13 40 45 50 50
1.7361 32CrMo12 4 – 1030 1030 885 785 1230-1420 1230-1420 1080-1270 980-1180 9 9 10 11th 35 35 40 45
1.7707 30 CrMoV 9 – 1050 1020 900 800 1250-1450 1200-1450 1100-1300 1000-1200 9 9 10 11th 35 35 40 45
1.8159 50 CrV 4 6150 900 800 700 650 1100-1300 1000-1200 900-1100 850-1000 9 10 12 13 40 45 50 50

ISLAH STEEL USAGE PLACES
material no. RELIGION SAE / AISI USAGE PLACES
1.0402 C 22 1020 Parts that have little difficulty in the construction of vehicles, machinery, engines and apparatus
1.0501 C 35 1035 Parts for slightly high stresses in machine, apparatus and vehicle construction
1.0503 C 45 1045 High-forced parts such as driveline shaft and gear in vehicle, engine, machinery and apparatus construction
1.0535 C 55 1055 High-forced parts such as driveline shafts and gears in machinery, vehicle and engine construction
1.0601 C 60 1060 In the manufacture of machinery and vehicles, shafts, axles, pins and similar, heavily stressed parts
1,1151 Ck 22 1020 / 1023 Parts to be made of low-strength, high-purity steel in the construction of vehicles, machinery, engines and apparatus
1.1180 cm 35 1035 Parts that are too hard to be shaped by machining in machine, vehicle, engine and apparatus construction
1.1181 Ck 35 1035 Parts to be made of steel, which are very difficult and require high purity in machine vehicle and engine construction
1.1186 Ck 40 1040 Parts to be made of medium-stress and high-purity steel in vehicle, machine, engine and apparatus construction
1.1191 Ck 45 1045 Parts to be made of medium-stress and high-purity steel in vehicle, machine, engine and apparatus construction
1.1201 cm 45 1045 Parts to be machined with medium stress and machining in machine, vehicle, engine and apparatus construction
1.1203 Ck 55 1055 Machine, vehicle, engine and apparatus in the construction of heavy-duty machining parts
1.1206 Ck 50 1050 Machine, vehicle, engine and apparatus in the construction of heavy-duty machining parts
1.1209 cm 55 1055 Machining parts that are very difficult in machine vehicle and engine construction
1.1221 Ck 60 1060 Parts to be made of steel, which are very difficult and require high purity in machine vehicle and engine construction
1.1223 cm 60 – Machining parts that are very difficult in machine vehicle and engine construction
1.5038 40 Mn 4 1039 Mn alloy tempered steel parts in general machinery and vehicle construction
1.5065 28 Mn 6 1330 Mn alloy tempered steel parts in general machinery and vehicle construction
1.6511 36 CrNiMo 4 9840 In vehicle and engine construction, parts such as axles, axle sleeves, crankshafts, axles are very difficult.
1.6580 30 CrNiMo 8 – Very difficult parts in automobile and engine construction where strength, ductility and elasticity are at the forefront.
1.6582 34CrNiMo 6 4340 In automobile and engine construction, very difficult parts such as crankshaft and other drive parts, front axle, axle sleeve
1.7003 38 Cr 2 – Parts in vehicle and engine construction in general
1.7006 46 Cr 2 5045 Parts in vehicle and engine construction in general
1.7033 34 Cr 4 5132 Parts such as crankshaft and other drive parts, front axles, axle sleeves in vehicle and machinery construction
1.7034 37 Cr 4 5135 Transmission parts, piston rod, crankshaft and gear wheels to be hardened in a cyanide bath
1.7035 41 Cr 4 5140 Crankshaft, front axle, axle sleeve, steering shaft and similar parts in vehicle and engine construction
1.7037 34 CrS 4 – Reconditioning steel parts to be machined, such as gearbox parts, shaft, piston rod
1.7038 37 CrS 4 – Parts to be hardened in a cyanide bath, such as 1.7037
1.7039 41 CrS 4 – Parts to be hardened in a cyanide bath, such as 1.7037
1.7218 25CrMo 4 4130 Parts such as axle shaft, axle sleeve, turbine parts and turbine blades in automobile and vehicle construction
1.7220 34CrMo 4 4135;4137 Crankshaft, axle shaft and sleeve, splined shaft and high ductility parts in automobile and aircraft construction
1.7225 42CrMo 4 4140 Like 1.7220, also gear wheel
1.7226 34CrMoS 4 – Like 1.7220 (better machinable core.)
1.7227 42CrMoS 4 – Like 1.7220 (better machinable core.)
1.7228 50CrMo 4 4150 High ductility parts, transmission, steering parts in automobile and aircraft construction. Driveline part.
1.7361 32CrMo12 4 – Parts with high demands on strength, ductility and elasticity
1.7707 30 CrMoV 9 – High ductility, over-stressed crankshaft, stud, bolt, etc. in automobiles and vehicles. parts
1.8159 50 CrV 4 6150 In the construction of automobiles and various mechanisms, the part that is forced to wear such as gear wheel, shaft, steering part.
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