Global Steel Supply & Processing
0.50 MM NOMINAL | NON-ORIENTED SILICON STEEL | P1.5/50 TESTING
ELECTRICAL STEEL / MOTOR OEM PROCUREMENT
Source 50W470 non-oriented electrical steel coil for stamped motor cores, compressor motors and electromagnetic laminations. Specify 0.50 mm nominal gauge, certified P1.5/50 loss class, B50/J5000, insulation type and slit-coil size for a project-specific bulk quotation.
Check material and coil specifications ↓Select 50W470 by a confirmed 0.50 mm gauge, 4.70 W/kg loss class, induction requirement, coating, and lamination-production dimensions.
| Specification | 50W470 ordering guide |
|---|---|
| Commercial product name | 50W470 Non-Oriented Electrical Steel Coil |
| Material category | Cold-rolled, grain non-oriented electrical steel for laminated magnetic cores |
| Nominal base thickness | 0.50 mm nominal steel thickness; confirm tolerance and whether any coating-inclusive thickness is being specified |
| Grade / material certificate | 50W470 non-oriented electrical steel, with confirmed source-mill designation and an agreed grade specification; verify the exact certificate designation |
| Domestic reference specification | GB/T 2521.1-2016 (current) covers fully processed non-oriented electrical steel; agree its applicable grade schedule or a specific source-mill specification |
| International reference | IEC 60404-8-4:2022 + Amendment 1:2026 covers fully processed non-oriented electrical strip; any international grade substitution requires documented comparison |
| Magnetic measurements | Specific total loss P1.5/50, induction / polarization B50 or J5000, and optional higher-frequency data |
| Illustrative loss request | 50W470 naming indicates the 4.70 W/kg class at 1.5 T / 50 Hz. Specify a contractual P1.5/50 limit of ≤4.70 W/kg and confirm it on the supplying mill MTC. |
| Width | Define parent-coil or slit-strip width, tolerance and edge condition in the RFQ |
| Coil inside diameter | 508 / 610 mm commonly requested; confirm mill and slitting capability |
| Coil net mass | Specify permissible minimum and maximum per coil and total net MT |
| Surface condition | Fully processed / final annealed, with agreed insulating coating |
| Packaging and traceability | Protected coil edges, corrosion/moisture packaging, coil identification and requested test documents |
For electric-motor laminations, request a mill-issued certificate covering P1.5/50 and B50 along with coil geometry and insulation. Reference data for the B50A470 loss class is useful for preselection, not an automatic certificate for every 50W470 batch.
All dimensional examples are RFQ fields, rather than a promise of available stock.
Electrical steel is selected by certified magnetic loss, induction and coating properties. For a 0.50 mm loss-class material, compare both magnetic specifications and stamping-line constraints.
| Magnetic or process item | Reference / condition | How to confirm |
|---|---|---|
| Nominal gauge | 0.50 mm | 0.50 mm, measured to contracted thickness tolerance; check steel-only versus coated-gauge basis |
| Specific total loss | P1.5/50 at 1.5 T, 50 Hz | P1.5/50 ≤4.70 W/kg is the 50W470 loss-class target; specify the applicable test method, source-mill guarantee and lot certificate |
| Magnetic induction / polarization | B50 / J5000 at 5,000 A/m | B50 / J5000 measured at 5,000 A/m. Published B50A470 reference: B50 ≥1.64 T; confirm actual 50W470 mill grade limits before substitution. |
| 60 Hz / higher-frequency loss | P at the specified frequency and polarization | Specify tests where motor operation or project standard requires them. |
| Lamination / stacking factor | Mill-reported value at agreed coating condition | Published B50A470 reference: stacking factor ≥96%; coating and actual supplied grade may change the acceptance value |
| Surface insulation resistance | Coating-specific test method and acceptance | Agree coating type, resistance, mechanical compatibility and test requirement. |
| Burr / cut-edge quality | Slitting and stamping specification | Agree inspection location, allowable burr and edge protection. |
Use 50W470 for cost/performance screening only after its loss, induction, surface insulation and blanking specifications match the approved motor-core design.
Request the supplying mill’s 50W470 datasheet, 0.50 mm thickness tolerance, fully processed delivery state and the actual GB/mill grade designation.
Quote P1.5/50 ≤4.70 W/kg as a contractual target at 1.5 T and 50 Hz, with optional higher-frequency loss testing for inverter-fed machines.
Use B50/J5000 at 5,000 A/m to compare candidate mills. B50A470 literature lists a 1.64 T minimum; confirm the actual 50W470 batch guarantee.
Agree insulating-coating category, suitable punching performance, insulation-resistance target and stacking factor.
Include finished slit width, edge burr, coil inside diameter, individual coil mass and winding orientation.
Identify test reports, batch identification, trial material and the acceptance procedure before production release.
Send the drawing and required electromagnetic limits with coil width and tonnage.
Coating performance affects interlaminar current flow, punchability and consistency when multiple stamped laminations are stacked.
Electrical steel is typically supplied with an insulating surface layer selected for the customer's stamping process and core assembly method. Confirm coating chemistry, coating mass and relevant surface-insulation resistance before placing the order.
ASTM A976 groups insulating coatings by composition and use; individual surface-resistance acceptance is a separate contractual requirement. Coating suitability depends on stamping, welding, bonding, temperature exposure and stress-relief practice.
Use actual mill photos to show coating uniformity and coil edges; product performance depends on testing, not appearance alone.
For 0.50 mm coil, balance punching productivity, stacking factor, strip flatness and coating integrity against the motor-core drawing and annual consumption.
Specify required slit width, width tolerance, coil set, edge burr target and compatibility with feeder equipment.
Confirm stacking factor, coating thickness, punched-part geometry and assembly method before large-batch production.
Verify whether the requested 0.50 mm refers to steel substrate or coated overall thickness and cite the tolerance basis.
Provide strip width, coil ID, allowable coil mass, edge shape and required winding direction.
Check how coating, burr, stamping clearance and interlocking details affect the completed magnetic core.
Set slit width, burr, tool-feed pitch and sample-stamping acceptance before approving large-volume 0.50 mm laminations.
Share the stator/rotor drawing, gauge, blank dimensions and target motor performance.
Select master coil width or slit strips with dimensional and edge acceptance.
Run customer tool trials and review burr, coating and stack height.
Confirm tested loss and induction from the agreed material lot; validate finished-core losses separately.
50W470 is frequently evaluated for 50 Hz rotating machinery and laminated components. Check actual motor efficiency, frequency spectrum and the supplier’s magnetic test data.
At 0.50 mm nominal gauge, non-oriented electrical steel is a practical material class for many general-purpose rotating-machine cores. Select an approved lot by iron loss, magnetic induction, coating and stamping characteristics.
Validate the required P1.5/50 limit, B50 result, 0.50 mm stacking geometry and the completed motor’s efficiency targets.
Confirm production stamping width, coating choice and consistency across deliveries.
Evaluate the applicable flux-density range and frequency before finalizing material selection.
Estimate 0.50 mm electrical steel coil length, strip mass per meter and theoretical blank-feed strokes before buying material for a motor-lamination line.
Enter the net steel coil mass and actual or agreed material density. Results exclude cores, packaging, winding gaps and slitting scrap.
Calculator default density is 7.70 g/cm³, a published reference for the B50A470 loss class; use the offered mill’s actual density and steel-thickness basis for purchase estimates. Blank strokes assume zero scrap and continuous usable length.
This tool estimates steel-strip geometry and does not calculate core loss, actual core output or final stacked-core mass.
Electrical steel requires dedicated magnetic testing and insulating surface control in addition to dimensional checks.
For 50W470-class fully processed non-oriented steel, the typical route includes rolling, final annealing, insulation coating and protected coiling. Confirm the final source mill’s production state, magnetic test basis and handling requirements in the order.
Define the full 0.50 mm magnetic specification and order quantities in a single RFQ. Company scale figures apply to the overall steel business, not to verified 50W470 inventory.
Company-wide steel manufacturing and inventory capacity supports sourcing across multiple flat-steel families. Exact 50W470 supply is confirmed separately.
Your inquiry can include induction values, core-loss limits, insulation specifications, tolerances and punch-trial documents.
Request the designated mill grade sheet, magnetic test results, batch identification and inspection documents when quoting.
Coordinate coil protection, individual coil limits, shipment labeling and destination requirements before release.
Send the mill grade, sample acceptance criteria and planned order volume.
For a 50W470-class procurement, the MTC should link each coil/lot to the agreed P1.5/50 loss limit, B50/J5000 result, coating specification and thickness tolerance.
Request an inspection plan covering the agreed steel grade, nominal thickness, iron loss, induction and coating. Depending on contract requirements, testing may include an Epstein-frame method and insulating-coating resistance checks.
Choose the processing scope after the mill grade and insulation coating have been approved.
Quote slit width, knife clearance constraints, edge burr, surface protection and acceptable width tolerance.
Request sheet lengths or sample blanks for die validation if available for your chosen steel and coating.
Maintain identification of the supplied parent coil, processed strip width and original material test documentation.
Send stamping drawings and blank-feed pitch; tooling validation remains part of the customer’s production process.
Company-wide inventory scale does not establish live stock for a specific electrical-steel magnetic grade.
Inventory and lead time change by source mill, coating, width and quality acceptance. Share the complete material specification to verify a supply route for single orders and recurring deliveries.
Coordinate packing and identification with the quality documentation required by your receiving factory.
Electrical steel surface damage and moisture exposure can complicate downstream lamination manufacturing. Confirm wrapping, handling arrangement and coil labels before international dispatch.
Choose electrical-steel grades by nominal thickness, directionality and certificate-backed magnetic performance.
These answers support preliminary material selection and RFQ preparation; actual test results are tied to the contracted supplying mill and lot.
The designation denotes a nominal 0.50 mm non-oriented electrical steel loss class associated with a P1.5/50 ceiling of 4.70 W/kg. The mill-issued datasheet and contract determine the actual acceptance criteria.
4.70 W/kg at 1.5 T and 50 Hz is the grade-class target. A particular shipment is accepted against the supplying mill’s contracted grade, specified test method and certified P1.5/50 result.
GB/T 2521.1-2016 is the current Chinese specification for fully processed non-oriented electrical strip. IEC 60404-8-4:2022 with Amendment 1:2026 is an international reference. Use the agreed standard edition and grade mapping in the purchase contract.
They belong to comparable 0.50 mm / 4.70 W/kg loss classes in published product literature. Grade conversion is subject to induction, coating, thickness tolerance, inspection method, mill data and customer qualification.
B50/J5000 is evaluated at a magnetic field strength of 5,000 A/m. A published B50A470 mill reference lists 1.64 T minimum; request a guaranteed value and actual result for the 50W470 lot you are buying.
The nominal metal thickness is 0.50 mm instead of 0.35 mm. This changes coil length at the same mass, lamination count, punching setup and potentially eddy-current loss. Compare full magnetic datasets before switching.
It is commonly evaluated for motor laminations and compressor or fan motors. A design-specific performance review should cover operating frequency, core geometry, efficiency requirements, insulation and measured magnetic loss.
Available coating grades are mill- and order-dependent. Specify the coating system, interlaminar resistance, thickness, post-punch processing and bonding or welding needs in your RFQ.
Slitting can be quoted subject to actual available parent-coil width, minimum slit width, burr tolerance, coating integrity and coil-pack requirements. Send the stamped-part drawing for a reliable estimate.
For a simplified estimate: meters = net coil mass (kg) ÷ [base thickness (mm) × width (mm) × density (g/cm³) × 0.001]. Use the confirmed material density and account separately for insulation coating and cutting scrap.
Request the mill grade specification, traceable MTC, P1.5/50 and B50 results under the agreed test methods, coating record, gauge/width data and the applicable packing list.
Send the grade and supply standard, 0.50 mm gauge, finished/slit width, individual coil ID and mass, total tonnage, core loss and induction requirements, coating, inspection terms, delivery destination and any trial-sample requirements.
Send the supplying mill designation, certified P1.5/50 and B50 requirements, 0.50 mm nominal gauge, slit width, insulation type, coil mass and annual or project tonnage. Add your stamping drawing, delivery destination and trial-approval plan.
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