S275JR Mother CoilEN 10025 · ASTM A480 / mill standard · Manufacturer, stockist & exporter, India
EN 10025-2 S275JR · W.Nr 1.0044
An S275JR mother coil is full-width coil straight from the rolling mill, made from S275JR to EN 10025-2. Mother coils are bought by service centres and tube mills for slitting and processing.
- EN 10025
- ASTM A480 / mill standard
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an S275JR Mother Coil?
- What it is
- Full-width coil straight from the rolling mill
- Material
- EN 10025-2
- Dimensions
- ASTM A480 / mill standard
- Grade
- S275JR
- Best at
- General structures, frames and fabrication
S275JR Mother Coil Specification
| Product | S275JR Mother Coil |
|---|---|
| Material standard | EN 10025-2 |
| Dimensional standard | ASTM A480 / mill standard |
| Thickness | 0.1 – 6 mm by route |
| Width | Mill width or slit to order |
| Testing | Chemical & mechanical per heat · NDT · impact where specified |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Mother Coil
Mother coils are bought by service centres and tube mills for slitting and processing.
- Full mill width
- Hot or cold rolled
- Heavy coil weights
More on choosing: Mother coil guide.
S275JR Mother Coil: Why S275JR for mother coils
Mother coils are bought by service centres and tube mills for slitting and processing. In S275JR, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Carbon steel coil feeds general fabrication. S275JR is picked for general structures, frames and fabrication. |
|---|---|
| Typical service | Construction — Beams, frames and base plates. |
S275JR Mother Coil Chemical Composition
| Element | Weight % |
|---|---|
| Carbon | 0.21 max (≤16 mm) |
| Manganese | 1.50 max |
| Phosphorus | 0.035 max |
| Sulphur | 0.035 max |
| Copper | 0.55 max |
| Nitrogen | 0.012 max |
S275JR Mother Coil Mechanical Properties
| Minimum values | Value |
|---|---|
| Yield strength | 275 MPa (≤16 mm) |
| Tensile strength | 410 – 560 MPa |
| Elongation | 23% |
| Charpy impact | 27 J at +20 °C |
Full chemistry, properties and equivalents are on the S275JR grade page.
Other S275JR coils
S275JR Mother Coils for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiS275JR Mother Coil — questions buyers ask
What width is a mother coil?
Full mill width, typically 1000 – 1600 mm depending on the mill.
Which standard covers S275JR mother coils?
The material is EN 10025-2; dimensions follow ASTM A480 / mill standard. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a S275JR mother coil?
The steel price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026