Non-Oriented (CRNGO) › Standard CRNGO › M270-35A
M270-35A Silicon Steel0.35 mm low-loss non-oriented electrical steel for premium motors & generators
M270-35A is ThyssenKrupp’s catalogue designation for a 0.35 mm non-oriented electrical steel guaranteed to a tighter core-loss class than standard 35W300 — P1.5/50 ≤ 2.70 W/kg versus ≤ 3.00 W/kg. Zhongxin supplies the equivalent grade to GB/T 2521.2 35W270, cross-referenced to Baosteel B35A270, Nippon Steel 35H270, JFE 35JN270 and POSCO 35PN270 — the low-loss step of our Standard CRNGO line, supplied as coil, sheet, slit strip or stamped laminations with a mill test certificate.
By thickness & grade
M270-35A datasheet
Guaranteed values for fully-processed M270-35A (GB 35W270) non-oriented steel. Certified per-coil test reports issued with every shipment.
| Parameter | Value | Test condition | Standard |
|---|---|---|---|
| Nominal thickness | 0.35 mm (0.0138″) | — | GB/T 2521.2 |
| Core loss P1.5/50 | ≤ 2.70 W/kg guaranteed | 1.5 T, 50 Hz, Epstein | GB/T 2521.2 / IEC 60404-2 |
| Core loss P1.0/50 | ≤ 1.20 W/kg guaranteed | 1.0 T, 50 Hz, Epstein | GB/T 2521.2 |
| Magnetic induction B50 | ≥ 1.60 T | H = 5,000 A/m | GB/T 2521.2 |
| Stacking factor | ≥ 0.95 | — | IEC 60404-13 |
| Surface insulation | C5 semi-organic coating (standard); C3 / C6 on request | Franklin test | ASTM A717 |
| Silicon + aluminum content | ≈ 2.0–2.5% | — | — |
M270-35A/35W270 is the lower-loss step above our standard 35W300 at the same 0.35 mm gauge. Catalogue numbers are supplier-specific — confirm against your datasheet before design release. Need thinner, higher-yield-strength steel for high-speed rotors? See High-Strength CRNGO for EV Traction Motors (0.20–0.27 mm).
In hand
M270-35A non-oriented steel master coil
0.35 mm · non-oriented · full-hard coil · C5-coated, shipped with a mill test certificate on every coil.
M270-35A Silicon Steel — 0.35 mm NGO
0.35 mm · master coil
- Thickness0.35 mm (0.0138″)
- GradeM270-35A · GB 35W270
- Cross-referenceB35A270 · 35H270 · 35JN270 · 35PN270
- Core loss P1.5/50≤ 2.70 W/kg
- Induction B50≥ 1.60 T
- Coil weightApprox. 3–5 t
- Coil inner diameter508 mm (610 mm on request)
- SurfaceC5 semi-organic coating
- CertificateMill test certificate (EN 10204 3.1)
Grade equivalents
M270-35A across GB, Baosteel, NSC, JFE & POSCO
Working from a mill catalogue outside China? Use this cross-reference to match M270-35A to the GB code, or check the full chart for other thicknesses. Equivalence is a working guide, not full interchangeability.
Equivalents, at a glance
Technical & physical properties
Surface, tolerance and coil specifications
Beyond core loss and induction, these are the properties engineers usually ask for when qualifying an M270-35A coil.
| Surface insulation | C5 semi-organic coating (standard) · C3 / C6 on request |
|---|---|
| Stacking factor | ≥ 0.95 |
| Coil width range | 8–1,250 mm, slit to your width |
| Coil weight | Approx. 3–5 t per coil, mill or mother coil |
| Coil inner diameter | 508 mm (20″) standard, 610 mm on request |
| Thickness tolerance | Per GB/T 2521.2 tolerance class — confirm PT class with your order |
| Width tolerance | ± 1.0 mm on slit strip |
| Test standards | GB/T 2521.2 & GB/T 3655 · IEC 60404 · JIS C 2552 · ASTM A677 |
By application
Matched to your core
Industrial & high-speed motors
Standard-speed stator/rotor cores wanting a lower-loss step up from 35W300 without a gauge change.
Explore →
Generators & alternators
Genset and wind-turbine generator cores running long duty cycles where every 0.1 W/kg matters.
Enquire →
EV traction motors
0.35 mm option for e-axle designs that don’t need the thinner high-strength EV gauges.
Explore →
Servo & appliance motors
Compact motor cores where lower iron loss improves efficiency and reduces heat rise.
Enquire →Supplied forms
M270-35A as coil, sheet, strip or laminations
M270-35A is stocked as master coil and processed in-house to your order — cut to length, slit to width, or stamped to a lamination drawing.
01
Coil
Master and mill-edge coils, 3–5 t, wound to your inner diameter and coil weight.
02
Sheet
Cut-to-length sheet in standard and custom lengths, ready for stamping or shearing.
03
Slit strip
Precision slit to width with tight tolerance, for stamping and lamination winding.
04
Laminations
Die-cut or laser-cut stator/rotor laminations, stamped to your drawing.
How we work
From enquiry to your dock
A simple path from spec to delivery, built for overseas buyers.
Send your spec
Thickness, grade, width and coating — or upload a drawing.
Quote in 24h
Matched grade, guaranteed loss and B50, availability in one business day.
Free samples
Test core loss and stampability, usually within a week.
Production & QC
Rolled, slit and tested coil by coil, with a mill certificate.
Export delivery
Moisture-proof packing and ocean freight to your port.
Packaging & export
Seaworthy packing to any port
01
Packaging
Coils in moisture-proof VCI wrap with edge and coil-eye protection; sheet and strip on corner-protected pallets.
02
Documentation
Mill test certificate, packing list, commercial invoice and certificate of origin; others on request.
03
Payment terms
T/T with 30% deposit and balance before shipment, or irrevocable L/C at sight.
04
Shipping & lead time
FOB Shanghai or Ningbo; CFR and CIF on request. 2–4 weeks production plus 25–45 days ocean freight.
FAQ
Sourcing M270-35A silicon steel from us
What is M270-35A steel?
M270-35A is ThyssenKrupp’s catalogue designation for a 0.35 mm non-oriented electrical steel with guaranteed core loss P1.5/50 ≤ 2.70 W/kg. Zhongxin supplies the equivalent grade to GB/T 2521.2 35W270 — isotropic material used for motor and generator laminations rather than the direction-dependent grain-oriented grades used in transformer cores.
M270-35A or 35W300 — which should I choose?
Same 0.35 mm gauge, but M270-35A/35W270 guarantees lower iron loss (≤ 2.70 vs ≤ 3.00 W/kg) — a meaningful efficiency gain for motors and generators on long duty cycles, at a modest price premium over standard 35W300. If loss isn’t the binding constraint, 35W300 remains the more economical default. For the full M270-35A vs standard CRNGO cost breakdown for servo and EV traction motors, see our buyer’s guide.
Is M270-35A the same as 35W270?
They sit in the same performance tier at the same thickness, but M270-35A is ThyssenKrupp’s own catalogue number rather than a GB/T standard code. Treat cross-mill catalogue numbers as a working guide, not an exact match — confirm against the datasheet before ordering.
What applications is M270-35A best suited for?
Standard-speed industrial motors, generators and alternators where a lower-loss upgrade is wanted without moving to thinner high-strength EV gauges. Also used in servo motors and some EV traction cores where a 0.35 mm gauge is acceptable.
Do you offer thinner or lower-loss options for high-speed EV motors?
Yes — for higher-speed EV traction motors needing 0.20–0.27 mm high-yield-strength grades, see High-Strength CRNGO for EV Traction Motors. For the full 0.35–0.65 mm standard range, see Standard CRNGO.
What forms can M270-35A be supplied in?
Coil, cut-to-length sheet, slit strip, or finished stator/rotor laminations (die-cut or laser-cut to your drawing).
What surface coating does M270-35A come with?
C5 semi-organic coating as standard; C3 or C6 available on request depending on your stamping or welding process.
What is the minimum order quantity and lead time?
Trial orders from roughly one coil (3–5 t); standard lead time 15–25 days from deposit. Free samples are usually ready within about a week — contact us for expedited options on grades we hold in stock.
Which standards and certifications apply?
Production runs under ISO 9001 and IATF 16949, with material to GB/T 2521.2, IEC 60404, JIS C 2552 or ASTM A677 and RoHS / REACH compliance. A mill test certificate (EN 10204 3.1) ships with every order.
Why buyers choose Zhongxin
Mill-grade CRNGO, export-ready service
Wuxi Zhongxin Special Steel Co., Ltd. is a Chinese manufacturer and exporter of non-oriented silicon steel, serving motor and generator makers across Europe, the Americas, Asia and beyond.
Send your M270-35A spec — get a quote in 24 hours
Share your core loss target, thickness, width and form, or upload a drawing. Free samples available.