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Steel ШХ15

VSt6ps VSt5sp VSt3kp VSt4kp VSt6sp VSt2kp Vst4ps St0 VSt2ps VSt3ps VSt5ps VSt2sp VSt3sp 18К 08ps 10ps 15К 18kp 20ps 35 55 05kp 08Ю 15kp 20 (20А) 22К 40 58 (55ПП) 08 10 (Art. 10) 12К 15pc 20К 25 45 60 08kp 10kp 15 16К 20kp 30 50 0cB 60С2 60C2XA 50XFA 60C2A 60C2CHFA 65C2VA 85 55XGR 65 70C3A 55С2 60Г 60C2H2A 65Г 70 75 SHKH15 SHKH15SG SH4 А12 А20 A40G А30 10XNDP 14G2AF 15G2AFDps 17GS 18G2AFps 09Г2 10G2BD 10ХСНД 12GS 15G2SFD 16GS 35GS 14CGS 15ХСНД 20ХГ2Ц 09G2S 10G2S1 14Г2 16G2AF 17G1S 25G2S 10Г2 14X2GMR 15KHF 18CR2N4MA 20Г 20X2H4A 20XGR 20KHN2M (20KHNM) 30Г 30CGS 30CRNI2MA 34CRNI3M 35Х 38CR2N3M 38XA 38CMA 3CR3M3F 40Х 40XFA 45CRN 50Г2 12XH2 15Х 20KHGSA 20XHN3A 25CGSA 30KHGSA 30CRNI2MOVA 33HS 35KHN1M2FA 38CR2NM 40Г 40CR2H2MA 40CRN 45Г 45CRNI2MOVA 50Х 12XH2A 18CGT 20CRNR 20CRNI4FA 25CGT 30Х 30CGSN2A 30KHN3A 34CRNI1M 35Г 36CR2NI2MOVA 38KH2NMF 38CRN 38CRNI3MA 40Г2 40CRNI2MA 45Г2 47GT 50XH 12CR2N4A 12XHN3A 15Г 18CR2N4VA 20Х 20XH 20XNR 30CGT 30ХН3М2ФА 35Г2 35CGSA 38CR2H2MA 38CRNI3MOVA 40HS 45Х 50Г

Description

Steel ШХ15

Steel ShKh15: Database of steels and alloys. Below is a systematized information on the purpose, chemical composition, types of supplies, substitutes, temperature of critical points, physical, mechanical, technological and casting properties for the grade — Steel ShKh15.

General information about steel ШХ15

Substitute brand
steel ШХ9, ШХ12, ШХ15СГ.
Delivery type
Circle shx15, pipe shx15, long products, including shaped: GOST 801−78, GOST 2590−71, GOST 2591−71. Calibrated bar GOST 7417−75. Polished bar and silver: GOST 14955−77. Strip GOST 103−76. Wire GOST 4727−83.
Application
balls up to 150 mm in diameter, rollers up to 23 mm in diameter, bearing rings with wall thicknesses up to 14 mm, plunger bushings, plungers, pressure valves, nozzle bodies, pusher rollers and other parts that require high hardness, wear resistance and contact strength.

Chemical composition of steel ШХ15

Chemical element %
Silicon (Si) 0.17−0.37
Manganese (Mn) 0.20−0.40
Copper (Cu), no more 0.25
Nickel (Ni), no more 0.30
Sulfur (S), no more 0.020
Carbon (C) 0.95−1.05
Phosphorus (P), no more 0.027
Chromium (Cr) 1.30−1.65

Mechanical properties of steel ШХ15

Mechanical properties

Heat treatment, delivery condition σ 0.2, MPa σ B, MPa δ 5 ,% ψ,% KCU, J / m 2 HB
Annealing at 800 ° C, furnace up to 730 ° C, then up to 650 ° C at a rate of 10−20 deg / h, air. 370−410 590−410 15−25 35−55 44 179−207
Hardening 810 ° С, water up to 200 ° С, then oil. Vacation 150 ° C, air. 1670 1670     five  

Mechanical properties depending on the tempering temperature

vacation t, ° С σ 0.2, MPa σ B, MPa δ 5 ,% δ 4 ,% KCU, J / m 2 HB HRC e
Hardening 840 ° С, oil.
200 1960−2200 2160−2550         61−63
300 1670−1760 2300−2450         56−58
400 1270−1370 1810−1910         50−52
450 1180−1270 1620−1710         46−48
Hardening 860 ° C, oil.
400   1570     fifteen 480  
500 1030 1270 8 34 20 400  
550 900 1080 8 36 24 360  
600 780 930 ten 40 34 325  
650 690 780 sixteen 48 54 280  

Mechanical properties versus test temperature

test t, ° C σ 0.2, MPa σ B, MPa δ 5 ,% ψ,% KCU, J / m 2
Heating at 1150 ° C and cooling to test temperatures
800   130 35 43  
900   88 43 50  
1000   59 42 50  
1100   39 40 50  
Sample 6 mm in diameter and 30 mm in length, deformed and annealed. Deformation rate 16 mm / min. Strain rate 0.009 1 / s
1000 32 42 61 100  
1050 28 48 62 100  
1100 20 29 72 100  
1150 17 25 61 100  
1200 eighteen 22 76 100  
Hardening 830 ° С, oil. Vacation 150 ° С, 1.5 h.
25   2550     88
-25   2650     69
-40   2600     64

Technological properties of steel ШХ15

Forging temperature
Beginning 1150, end 800. Sections up to 250 mm are cooled in air, 251−350 mm — in a pit.
Weldability
welding method — KTS.
Machinability by cutting
In the hot-rolled state at HB 202 and σ B = 740 MPa K υ tv.spl. = 0.90, K υ b.st. = 0.36.
Tendency to release ability
inclined
Flock sensitivity
sensitive
Grindability
good.

Temperature of critical points of steel ШХ15

Critical point ° C
Ac1 724
Ac3 900
Ar3 713
Ar1 700
Mn 210

Endurance limit of steel ШХ15

σ -1, MPa n σ B, MPa σ 0.2, MPa Heat treatment, steel condition
333 1E + 6     HB 192. Annealing.
804 1E + 6     HB 616. Hardening 830 C. Vacation 150 C, oil.
652 1E + 6 2160 1670 HB 582−670

Hardenability of steel ШХ15

Hardening 850 ° C.

Distance from the end, mm / HRC e
1.5 3 4.5 6 nine 12 fifteen eighteen 24 33
65.5−68.5 63−68 58.5−67.5 51.5−67 40−64 38−54 38−48.5 38−47 33−41.5 28−35.5
Amount of martensite,% Crit. Diam. in water, mm Crit. Diam. in oil, mm Crete. hardness, HRCэ
50 28−60 9−37 57
90 20−54 6−30 62

Physical properties of steel ШХ15

Test temperature, ° С 20 100 200 300 400 500 600 700 800 900
Normal elastic modulus, E, GPa 211                  
Torsional shear elastic modulus G, GPa 80                  
Density of steel, pn, kg / m 3 7812 7790 7750 7720 7680 7640        
Thermal conductivity coefficient W / (m ° С)     40   37 32        
Ud. electrical resistance (p, Nom. m)   390 470 520            
Test temperature, ° С 20−100 20−200 20−300 20−400 20−500 20−600 20−700 20−800 20−900 20−1000
Linear expansion coefficient (a, 10−6 1 / ° С) 11.9 15.1 15.5 15.6 15.7          

Heat resistance, redness of steel ШХ15

Heat resistance

Temperature, ° С Time, h Hardness, HRC e
150−160 1 63

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