30Cr
30Cr1Mo1V · alloy
30Cr1Mo1V
Typically normalized (880–920 °C, air cool) or carburized (900–930 °C) for case-hardening grades, then quenched and tempered at 150–200 °C. | T 2666 30Cr1Mo1V
C:0.22-0.28;Cr:1.50-2.00;Ni:3.20-4.00;Mo:0.30-0.50;V:0.05-0.12
30Cr
30Cr20Ni3Mo · stainless
30Cr20Ni3Mo
| GJB 30A GB/T 15007
C 0.27-0.33 Si ≤0.80 Mn ≤1.00 P ≤0.030 S ≤0.020 Cr 20 Ni 3 Mo 0.50-1.00 (nominal)
30Cr
30Cr25Ni4Mo · stainless
30Cr25Ni4Mo
| GJB 30A GB/T 15007
C 0.27-0.33 Si ≤0.80 Mn ≤1.00 P ≤0.030 S ≤0.020 Cr 25 Ni 4 Mo 0.50-1.00 (nominal)
30Cr
30Cr28Ni4Mo · stainless
30Cr28Ni4Mo
| GJB 30A GB/T 15007
C 0.27-0.33 Si ≤0.80 Mn ≤1.00 P ≤0.030 S ≤0.020 Cr 28 Ni 4 Mo 0.50-1.00 (nominal)
30Cr
30Cr2Ni2Mo · alloy
30Cr2Ni2Mo
Bar, plate, sheet, tube, forgings, strip, wire, powder |
C:0.27-0.33;Si:0.17-0.37;Mn:0.50-0.80;Cr:1.80-2.20;Ni:1.80-2.20;Mo:0.30-0.50;P:≤0.025;S:≤0.025
30Cr
30Cr2Ni4MoV · alloy
30Cr2Ni4MoV
Typically normalized (880–920 °C, air cool) or carburized (900–930 °C) for case-hardening grades, then quenched and tempered at 150–200 °C. | T 2666 30Cr2Ni4MoV
C:0.22-0.28;Cr:1.50-2.00;Ni:3.20-4.00;Mo:0.30-0.50;V:0.05-0.12
30Cr
30CrMnMoTiA · alloy
30CrMnMoTiA
Forging | T 3077 30CrMnMoTiA
C:0.38-0.43;Si:0.15-0.35;Mn:0.75-1.00;Cr:0.80-1.10;Mo:0.15-0.25
30Cr
30CrMnNi · alloy
30CrMnNi
| GB/T 3077 GB/T 15007
C 0.27-0.34 Si 0.17-0.37 Mn 1.00-1.40 Cr 0.80-1.20 Ni 0.80-1.20
30Cr
30CrMnSi · alloy
30CrMnSi
Bar,Plate | T 3077 30CrMnSi, GB/T 3077 GB/T 15007
C:0.27-0.34;Si:0.7-1.1;Mn:0.7-1.1;Cr:0.7-1.1;P:≤0.035;S:≤0.035
30Cr
30CrMnSiA · alloy
30CrMnSiA
Bar,Plate | T 3077 30CrMnSiA, GB/T 3077 GJB 30A, GJB 30A-2012
C:0.28-0.34;Si:0.90-1.20;Mn:0.80-1.10;Cr:0.80-1.10;P:≤0.025;S:≤0.025
30Cr
30CrMnSiE · alloy
30CrMnSiE
Low-alloy engineering steel with enhanced hardenability and strength from alloying elements. Chromium (≈0.8%) improves hardenability, wear and corrosion resistance. Applied to gears, shafts, bolts, connecting rods, pressure parts and heavy forgings in aut | GJB 5215 30CrMnSiE
C:0.38-0.43;Mn:0.70-0.90;Cr:0.70-0.90
30Cr
30CrMnSiNi2A · alloy
30CrMnSiNi2A
Bar,Plate | T 3077 30CrMnSiNi2A, GJB 30A GB/T 3077, GJB 30A-2012
C:0.27-0.34;Si:0.7-1.1;Mn:0.7-1.1;Cr:0.7-1.1;Ni:1.7-2.3;P:≤0.035;S:≤0.035
30Cr
30CrMnSiNi2A Annealed Bar · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Bar Heavy · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Bar Medium · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Forging · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Forging Heavy · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Forging Medium · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20
30Cr
30CrMnSiNi2A Annealed Pipe · alloy
30CrMnSiNi2A (Annealed)
| GB/T 3077
C:0.27-0.34;Cr:0.90-1.20;Mn:0.90-1.20;Ni:1.40-1.80;Si:0.90-1.20