Steel M800-65A
M800-65A is a fully processed non-oriented electrical steel to EN 10106 in 0.65 mm gauge, supplied with C-3/C-5/C-6 core-plate insulation or bare.
Reference datasheet — M800-65A is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
M800-65A tempers and conditions
M800-65A is supplied in one standard condition, SRA.
Supply forms, finishes and certifications
Ways M800-65A is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BARE | Uncoated (bare, annealed) sheet | Surface finish |
FP-C3 | Fully processed, organic (C-3 type) varnish coating | Surface finish |
FP-C6 | Fully processed, filled organic (C-6 type) coating for… | Surface finish |
FP-C5Default | Fully processed, inorganic/semi-organic insulated | Coating |
What is M800-65A?
M800-65A is a fully processed non-oriented electrical steel to EN 10106 in 0.65 mm gauge, supplied with C-3/C-5/C-6 core-plate insulation or bare. The thicker gauge and higher loss guarantee make it the low-cost option for economy motors, ballasts and small transformers where efficiency targets are modest; typical values are 315 MPa yield, 430 MPa tensile and 28 % elongation. Core loss rises steeply with frequency, service is limited to about 200 °C, and uncoated material rusts in humid storage; step up to M400-50A when efficiency class or thermal limits tighten. M800-65A has a density of 7.8 g/cm³ (0.282 lb/in³), lighter than 87% of steel grades. It melts at 1,500°C (2,732 °F). M800-65A has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 430 MPa (62.4 ksi) — weaker than 82% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
What is M800-65A used for?
- low-cost motors
- ballasts
- small transformers
Advantages
- Good corrosion resistance — 22/100, better than 90% of steel grades
- Ductile — tolerates forming and impact — 28%, better than 89% of steel grades
- Forms and bends easily — 72/100, better than 88% of steel grades
Limitations
- Hard to polish — 40/100, worse than 96% of steel grades
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Low strength — 315 MPa (45.7 ksi), worse than 82% of steel grades
M800-65A properties
Typical room-temperature values; bars are the position among steel grades.
Physical3
M800-65A has a density of 7.8 g/cm³ (0.282 lb/in³), lighter than 87% of steel grades. It melts at 1,500°C (2,732 °F).
Mechanical13
M800-65A has a yield strength of 315 MPa (45.7 ksi) and a tensile strength of 430 MPa (62.4 ksi) — weaker than 82% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
M800-65A is rated for continuous service to 200°C (392 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), better than 66% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
M800-65A conducts electricity at 8.6 % IACS, better than 66% of steel grades.
Chemical & Environmental3
Corrosion resistance is poor (22/100), better than 90% of steel grades.
Sustainability4
Producing a kilogram of M800-65A takes about 32 MJ of energy and emits 2.4 kg of CO₂ — more than 70% of steel grades. Typical recycled content is 25%.
Manufacturability7
M800-65A's machinability is fair (50/100, worse than 53% of steel grades); weldability good (55/100); formability very good (72/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. M800-65A is highlighted; hover a dot for its name, or open the interactive family chart.
Working with M800-65A
Is M800-65A easy to machine?
Almost always blanked on progressive dies or wire-EDM/laser cut for prototypes; keep punch clearance ~5–8 % of thickness and burrs <25 µm, since burrs short-circuit laminations and raise loss.
Can M800-65A be welded?
TIG/laser stack welding of the outer core is common but the heat-affected zone loses magnetic quality; keep weld beads short and away from flux paths.
Can M800-65A be formed, bent or molded?
Excellent punchability and moderate deep-drawability for pole shoes; the 0.65 mm gauge is stiff enough for simple bending but springback is noticeable.
M800-65A chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Ckept very low to avoid magnetic ageing | ≤ 0.01 | 0 |
| Silow alloying level typical of high-loss economy grades | 0.3 – 1.2 | 0.7 |
| Al | 0.1 – 0.5 | 0.25 |
| Mn | 0.15 – 0.6 | 0.3 |
| Psometimes added for resistivity/strength | ≤ 0.1 | 0.03 |
| S | ≤ 0.01 | 0.01 |
| N | ≤ 0.01 | 0 |
| FeEN 10106 specifies magnetic properties, not chemistry; values are typical mill analysis | balance |
What surface finishes work on M800-65A?
Supplied with C-3/C-5/C-6 core-plate insulation; bare material must be varnished, oxidised or oiled promptly because it rusts in humid storage.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Black / Phosphate
Thermal Spray
How much does M800-65A cost?
M800-65A is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
M800-65A — frequently asked
What is M800-65A used for?
M800-65A is typically used for low-cost motors, ballasts and small transformers. In short: lowest-cost non-oriented grade; thick 0.65 mm lamination gauge; higher loss than M400-50A.
What is the yield strength of M800-65A?
M800-65A has a typical yield strength of 315 MPa (45.7 ksi) and a tensile strength of 430 MPa (62.4 ksi) — weaker than 82% of steel grades.
Is M800-65A easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 53% of steel grades). Almost always blanked on progressive dies or wire-EDM/laser cut for prototypes; keep punch clearance ~5–8 % of thickness and burrs <25 µm, since burrs short-circuit laminations and raise loss.
Can M800-65A be welded?
Yes — weldability is rated good (55/100). TIG/laser stack welding of the outer core is common but the heat-affected zone loses magnetic quality; keep weld beads short and away from flux paths.
What surface finishes work on M800-65A?
Supplied with C-3/C-5/C-6 core-plate insulation; bare material must be varnished, oxidised or oiled promptly because it rusts in humid storage.
Can M800-65A be formed, bent or molded?
Excellent punchability and moderate deep-drawability for pole shoes; the 0.65 mm gauge is stiff enough for simple bending but springback is noticeable.
What is the maximum service temperature of M800-65A?
M800-65A is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does M800-65A cost?
M800-65A is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10106 — Cold rolled non-oriented electrical steel strip and sheet delivered in the fully processed state — CEN (2015)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels and High-Performance Alloys (magnetically soft materials) — ASM International (1990)
- Non-oriented fully processed electrical steel product data (M-series grades, coatings C-3/C-5/C-6) — European/Chinese electrical steel producers (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.