Steel 50W800
EN 50W800
50W800 is a 0.50 mm non-oriented electrical steel of the W-series, cross-referenced to M36, delivered with C-5 or C-6 insulating coatings, bare, stress-relief annealed or slit to width.
Reference datasheet — 50W800 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.
50W800 tempers and conditions
50W800 is supplied in one standard condition, SRA.
Supply forms, finishes and certifications
Ways 50W800 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
FP-BARE | Fully processed, uncoated (mill-annealed) sheet | Surface finish |
FP-C6 | Fully processed, organic/inorganic hybrid (C6) coating | Surface finish |
SLIT | Slit narrow coil / cut-to-length lamination blanks | Surface finish |
FP-C5Default | Fully processed, inorganic (C5) insulation coating | Coating |
What is 50W800?
50W800 is a 0.50 mm non-oriented electrical steel of the W-series, cross-referenced to M36, delivered with C-5 or C-6 insulating coatings, bare, stress-relief annealed or slit to width. Its low silicon content gives 28 % elongation and a formability score of 72, so it punches easily and gives long die life, which is why it is used in cost-driven fractional-horsepower motors. Core loss is higher than thin-gauge grades, bare corrosion resistance is low (18/100) and service is capped at 200 °C. For efficiency-driven designs, step to 0.35 mm 35A250 or 0.27 mm 27W140. 50W800 has a density of 7.75 g/cm³ (0.28 lb/in³), lighter than 93% of steel grades. It melts at 1,480°C (2,696 °F). 50W800 has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
What is 50W800 used for?
- fractional-hp motors
- fans
- pumps
Advantages
- 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
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Poor heat conductor — 30 W/m·K (17.3 BTU/hr·ft·°F), worse than 83% of steel grades
- Low electrical conductivity — 4.3 % IACS, worse than 82% of steel grades
- Low strength — 320 MPa (46.4 ksi), worse than 81% of steel grades
50W800 properties
Typical room-temperature values; bars are the position among steel grades.
Physical3
50W800 has a density of 7.75 g/cm³ (0.28 lb/in³), lighter than 93% of steel grades. It melts at 1,480°C (2,696 °F).
Mechanical12
50W800 has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
50W800 is rated for continuous service to 200°C (392 °F). It conducts heat at 30 W/m·K (17.3 BTU/hr·ft·°F), worse than 83% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
50W800 conducts electricity at 4.3 % IACS, worse than 82% of steel grades.
Chemical & Environmental3
Corrosion resistance is poor (18/100), better than 83% of steel grades.
Sustainability4
Producing a kilogram of 50W800 takes about 32 MJ of energy and emits 2.3 kg of CO₂ — more than 70% of steel grades. Typical recycled content is 20%.
Manufacturability7
50W800's machinability is fair (45/100, worse than 65% 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. 50W800 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 50W800
Is 50W800 easy to machine?
Fabricated mainly by precision blanking; the material tends to smear on tooling and is burr-sensitive, so use carbide die edges, regrind frequently and hold burr height to 0.02–0.05 mm to prevent interlaminar shorts.
Can 50W800 be welded?
TIG or laser spot tacking can hold a stack together, but the weld bridges laminations and markedly raises local iron loss — use interlock cleats, riveting or a self-bonding coating instead.
Can 50W800 be formed, bent or molded?
Blanking and bending behaviour is good thanks to low Si content and high ductility; work hardening in the 2–5 mm zone along cut edges raises core loss, so stress-relief anneal at 750–800 °C where magnetics matter.
50W800 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 |
|---|---|---|
| Ctypical value after decarburization of finished product | ≤ 0.01 | 0 |
| SiGB/T 2521 does not specify composition; typical industrial value | 0.8 – 1.6 | 1.2 |
| Al | 0.15 – 0.45 | 0.3 |
| Mn | 0.15 – 0.45 | 0.3 |
| P | ≤ 0.06 | 0.03 |
| S | ≤ 0.01 | 0 |
| N | ≤ 0.01 | 0 |
| Fe | balance |
What surface finishes work on 50W800?
Standard delivery carries a C-5 inorganic or C-6 composite insulating coating and needs no further treatment; bare material requires varnish impregnation, phosphating or an oxide treatment for rust protection and interlaminar insulation.
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
Equivalent designations
Standards and trade names that resolve to Steel 50W800 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Similar grades
- M36
How much does 50W800 cost?
50W800 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
50W800 — frequently asked
What is 50W800 used for?
50W800 is typically used for fractional-hp motors, fans and pumps. In short: lowest-cost non-oriented grade; best punchability in family; higher core loss trade-off.
What is the yield strength of 50W800?
50W800 has a typical yield strength of 320 MPa (46.4 ksi) and a tensile strength of 440 MPa (63.8 ksi) — weaker than 81% of steel grades.
Is 50W800 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 65% of steel grades). Fabricated mainly by precision blanking; the material tends to smear on tooling and is burr-sensitive, so use carbide die edges, regrind frequently and hold burr height to 0.02–0.05 mm to prevent interlaminar shorts.
Can 50W800 be welded?
Yes — weldability is rated good (55/100). TIG or laser spot tacking can hold a stack together, but the weld bridges laminations and markedly raises local iron loss — use interlock cleats, riveting or a self-bonding coating instead.
What surface finishes work on 50W800?
Standard delivery carries a C-5 inorganic or C-6 composite insulating coating and needs no further treatment; bare material requires varnish impregnation, phosphating or an oxide treatment for rust protection and interlaminar insulation.
Can 50W800 be formed, bent or molded?
Blanking and bending behaviour is good thanks to low Si content and high ductility; work hardening in the 2–5 mm zone along cut edges raises core loss, so stress-relief anneal at 750–800 °C where magnetics matter.
What is the maximum service temperature of 50W800?
50W800 is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 50W800 cost?
50W800 is a budget-cost steel ($), 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
- IEC 60404-8-4 / ASTM A677 Non-oriented electrical steel — IEC / ASTM (2019)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
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.