EN45 (250A58, spring) equivalents, chemistry & properties.
EN45 (250A58, spring) is a spring steel used for mostly used for leaf springs for trucks and railways, coil springs and spring clips. Below are its equivalent designations in nine standards, chemical composition, mechanical properties and density.
EN45 (250A58, spring) equivalent grades
- India (IS)
- 55Si7 / 60Si7 (IS 3431, nearest)
- USA (ASTM / AISI / SAE)
- AISI 9255 / 9260 (nearest)
- Europe (EN)
- 56Si7 / 55Si7
- Werkstoff No. (W.Nr)
- 1.5026
- UK (BS)
- 250A58 (EN45)
- Japan (JIS)
- SUP6 / SUP7 (nearest)
- China (GB)
- 55Si2Mn / 60Si2Mn (nearest)
- Russia (GOST)
- 55S2 / 60S2
Key data
- Family
- Spring steel
- Density
- 7.85 g/cm³
- Typical mechanical
- Hardened and tempered, high elastic limit
- Typical uses
- Mostly used for leaf springs for trucks and railways, coil springs and spring clips
- Weight
- Calculate weight in EN45 (250A58, spring)
EN45 (250A58, spring) chemical composition (weight %)
EN45 (West Yorkshire Steel)
| C | Si | Mn | P | S |
|---|---|---|---|---|
| 0.5–0.6 | 1.5–2.0 | 0.7–1.0 | ≤0.05 | ≤0.05 |
BS 970 250A58 (as previously recorded; not re-checked)
| C | Si | Mn | P | S |
|---|---|---|---|---|
| 0.55–0.62 | 1.70–2.10 | 0.70–1.00 | ≤0.050 | ≤0.050 |
Grades similar to EN45 (250A58, spring)
Frequently asked questions
What is the equivalent of EN45 (250A58, spring)?
EN45 (250A58, spring) equivalents: India (IS) 55Si7 / 60Si7 (IS 3431, nearest); USA (ASTM / AISI / SAE) AISI 9255 / 9260 (nearest); Europe (EN) 56Si7 / 55Si7; Werkstoff No. (W.Nr) 1.5026; UK (BS) 250A58 (EN45); Japan (JIS) SUP6 / SUP7 (nearest); China (GB) 55Si2Mn / 60Si2Mn (nearest); Russia (GOST) 55S2 / 60S2. Equivalents are close but not always identical; check the standard on your order.
What is the chemical composition of EN45 (250A58, spring)?
EN45 (250A58, spring) (EN45 (West Yorkshire Steel)): C 0.5–0.6, Si 1.5–2.0, Mn 0.7–1.0, P ≤0.05, S ≤0.05 (weight %).
What is the density of EN45 (250A58, spring)?
About 7.85 g/cm³ (7,850 kg/m³), the value used for weight calculations.
Need EN45 (250A58, spring)?
Steel Impex India, Mumbai, supplies EN45 (250A58, spring) in pipes, plates, sheets, bars and fittings as available, with mill test certificates. Send the grade, standard, size and quantity.