8620 20NiCrMo2 / SAE 8620 Alloy Steel
AISI/SAE 8620 · DIN 21NiCrMo2 (1.6523) · BS 805M20 · JIS SNCM220 · IS 20NiCrMo2
20NiCrMo2 / SAE 8620 Alloy Steel in ready stock at our Madurai godowns, annealed, for carburising, Ø 20–250 mm. Band-saw cut to your sizes with mill test certificates on request.
I. Sizes & weights
Nominal weights at 7.85 g/cm³ · Ø 20–250 mm| Ø mm | kg / metre | kg / 6 m bar | |
|---|---|---|---|
| 20 | 2.47 | 14.8 | |
| 25 | 3.85 | 23.1 | |
| 32 | 6.31 | 37.9 | |
| 40 | 9.86 | 59.2 | |
| 50 | 15.4 | 92.5 | |
| 63 | 24.5 | 146.8 | |
| 80 | 39.5 | 236.8 | |
| 100 | 61.7 | 369.9 | |
| 125 | 96.3 | 578.0 | |
| 160 | 157.8 | 947.0 | |
| 200 | 246.6 | 1,479.7 | |
| 250 | 385.3 | 2,312.0 |
II. Chemical composition (% by weight)
| Element | C | Si | Mn | Ni | Cr | Mo |
|---|---|---|---|---|---|---|
| Min | 0.18 | 0.15 | 0.70 | 0.40 | 0.40 | 0.15 |
| Max | 0.23 | 0.35 | 0.90 | 0.70 | 0.60 | 0.25 |
Typical standard ranges. Every mill lot ships with its own test certificate on request.
III. Mechanical properties
- Annealed tensile
- 530 MPa
- Annealed hardness
- 149 HB
- Case hardness
- 58–62 HRC
- Elongation
- 31%
IV. Supply condition
- Condition
- Annealed, for carburising
- Machinability
- Good
- Forms
- round
- Cutting
- Band saw ±1 mm
- SKU
- SST-AES-12
V. Weigh it, then request it.
Locked to 86208620 · 7.85 g/cm³
W = π × D² × L × ρ ÷ 4,000,000 · ρ = 7.85 g/cm³ · rounded to 0.1 kg. Theoretical weight; actual mill weight can vary by ±2–3%.
Gears, pinions, ring gears
About 8620
Can you cut 8620 to my sizes?
Yes. 8620 is band-saw cut to ±1 mm. Send piece sizes and quantities with your request; cutting is quoted with the material.
Is a mill test certificate provided with 8620?
An MTC is supplied with mill material on request, traceable to the heat number.
What sizes are in stock?
Ø 20–250 mm. For large tonnage, message us to reserve material.
What are the equivalents of 8620?
AISI/SAE 8620, DIN 21NiCrMo2 (1.6523), BS 805M20, JIS SNCM220, IS 20NiCrMo2. Equivalents are close matches; confirm against your drawing's specification.