By visiting this site, you accept the use of cookies. More about our cookie policy.

Steel 30KHGSN2A

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 30KHGSN2A

Steel 30KHGSN2A: brand of steels and alloys. Below is the 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 30HGSN2A.

General information about steel 30HGSN2A

Delivery type
Circle 30khgsn2a, sheet 30khgsn2a, rolled sections, including shaped: GOST 4543−71, GOST 2590−71, GOST 2591−71, GOST 2879−69. Calibrated bar GOST 4543−71, GOST 7417−75, GOST 8559−75, GOST 8560−78, GOST 1051−73. Polished bar and silver bar GOST 4543−71, GOST 14955−77. Thick sheet GOST 11269−76. Thin sheet GOST 11268−76. Strip GOST 103−76. Forgings and forged billets GOST 1133−71, GOST 4543−71. Pipes OST 14−21−77.
Application
Gears, flanges, cams, pins, axle shafts, pins and other critical heavy-duty parts.

Chemical composition of steel 30HGSN2A

Chemical element %
Silicon (Si) 0.90−1.20
Manganese (Mn) 1.00−1.30
Copper (Cu), no more 0.30
Nickel (Ni) 1.40−1.80
Sulfur (S), no more 0.025
Carbon (C) 0.27−0.34
Phosphorus (P), no more 0.025
Chromium (Cr) 0.90−1.20

Mechanical properties of steel 30HGSN2A

σ 0.2, MPa σ B, MPa δ 5 ,% δ 10 ,% ψ,% KCU, J / m 2
Bar. Hardening 900 ° C, Oil. Vacation 260 ° C, air or oil.
1375 1620 nine   45 59
Softened or normalized sheets of the 1,3,5th category (transverse samples)
  490−830 19      
  490−830   fifteen    

Mechanical properties at elevated temperatures

test t, ° C σ 0.2, MPa σ B, MPa δ 5 ,% δ 10 ,% ψ,% KCU, J / m 2
Hardening 890 ° С, oil. Vacation 360 ° C, oil.
20   1550   nine 52 60
250   1550   nine 52 60
300   1550   ten 53 58
350   1400   ten 54 52
450 710 860   21 72  
Sample 10 mm in diameter, 50 mm long, rolled. Deformation rate 20 mm / min. Strain rate 0.007 1 / s.
800 98 115 33   77  
900 64 81 51   77  
1000 42 49 53   90  
1100 25 32 67   100  
1200 fifteen 22 69   100  
1250 eleven 17 77   100  

Mechanical properties depending on the tempering temperature

vacation t, ° С σ 0.2, MPa σ B, MPa δ 5 ,% ψ,% KCU, J / m 2 HRC e
Quenching 900 ° C, oil, cooling after tempering in oil.
200 1500 1900 fifteen 55 120 52
300 1500 1800 fifteen 53 90 51
400 1350 1500 fifteen 52 80 49
500 1150 1300 sixteen 50 80 42
600 900 1000 20 55 150 37

Mechanical properties depending on the section

Heat treatment, delivery condition Section, mm σ 0.2, MPa σ B, MPa δ 5 ,% ψ,% KCU, J / m 2
Hardening 900 ° C, oil. Vacation
Sample cutting direction — pr. 100 540−570 800−820 20−23 64−66 100−110
Sample cutting direction — p. 100 470−490 780−810 20 52−60 50−75
Sample cutting direction — pr. 150 500−520 780 20−23 64 90−100
Sample cutting direction — p. 150 480−490 710−780 15−20 36−51 70−90
Sample cutting direction — pr. 250 500−520   18−23 58−65 100−110
Sample cutting direction — p. 250 500−520   16−17 46−51 75
Hardening 900 ° C, water. Vacation.
Sample cutting direction — pr. 100 1000−1020 1190−1230 16−17 43−54 95−120
Sample cutting direction — p. 100 1070−1170 1260−1290 8−10 29−35 75−100
Sample cutting direction — pr. 150 940−980 1160−1170 9−13 26−36 85
Sample cutting direction — p. 150 1030−1050 1090−1150 3−5 9−10 70−90
Sample cutting direction — pr. 250 940−960 1130−1170 15−18 23−41 80−90
Sample cutting direction — p. 250 1000 880−1080 4 7−8 60−75

Mechanical properties additional data

σ B, MPa δ 5 ,% ψ,% KCU, J / m 2 HRC e
Section 20 mm. HTMO: deformation temperature 960 ° C, degree of deformation 20%. Vacation 270 ° С, 2 h
1800 ten 45 65 47−51
Hardening 900 ° С, НТМО: 550 ° С, deformation in 3 passes by 63% (25%, 25%, 13% with intermediate heating). Cooling in oil. Vacation 275 ° С, 6 h.
2310     20  

Technological properties of steel 30HGSN2A

Forging temperature
Beginning 1200, end 800. Cooling of sections more than 60 mm slow, less — in air in stacks.
Tendency to release ability
inclined
Flock sensitivity
sensitive

Temperature of critical points of steel 30HGSN2A

Critical point ° C
Ac1 705
Ac3 800
Mn 321

Impact strength of steel 30HGSN2A

Impact strength, KCU, J / cm 2

Delivery status, heat treatment +20 -20 -thirty
Hardening 900 С, oil. Vacation 650 С, exposure 2.5 h, oil 220 120 80

Endurance limit of steel 30HGSN2A

σ -1, MPa n σ B, MPa σ 0.2, MPa Heat treatment, steel condition
505 1E + 7 1770 1600 Normalization, 890 C. Hardening 890 C, oil. Vacation 230 S.

Hardenability of steel 30HGSN2A

Hardening 900 C. Hardness HRCэ.

Distance from the end, mm / HRC e
1.5 3 6 12 eighteen 24 thirty
63 62.5 62 61 61 60.5 60.5

Physical properties of steel 30HGSN2A

Test temperature, ° С 20 100 200 300 400 500 600 700 800 900
Normal elastic modulus, E, GPa 195     180 168 135        
Torsional shear elastic modulus G, GPa 77     70 65 51        

Our consultant will save your time

+49(1516) 758 59 40
E-mail:
Telegram:
WhatsApp:
Ask a question

Subscription

Special offers and discounts. :)
brof10-1 circle, XH78T pipe, Circle titanium, pt7m pipe, 20H23N18 sheet