Steel SPCD
JIS SPCD · EN DC04, DC03
SPCD is JIS deep-drawing quality cold-rolled carbon steel sheet, roughly equivalent to European DC04 (with DC03 as the next tier down), supplied to JIS G 3141 tempers.
Reference datasheet — SPCD 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.
SPCD tempers and conditions
SPCD is supplied in 2 conditions, soft to hard.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed (no skin pass), dull finish | Softest, most ductile supply state for the most severe draws; must be pressed soon after annealing because yield-point elongation can cause stretcher strains. | 165 | 290 | 43 | 85 HB | 11 % IACS |
As built (as printed) | Annealed soft condition with bright rolled surface; niche, for severe drawing where surface gloss matters. | 170 | 295 | 42 | 85 HB | 11 % IACS |
Supply forms, finishes and certifications
Ways SPCD is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
SB | Standard temper (annealed + skin-passed), bright finish | Surface finish |
SDDefault | Standard temper (annealed + skin-passed), dull finish | Surface finish |
EG | Electrogalvanized | Coating |
GI | Hot-dip galvanized drawing quality | Coating |
What is SPCD?
SPCD is JIS deep-drawing quality cold-rolled carbon steel sheet, roughly equivalent to European DC04 (with DC03 as the next tier down), supplied to JIS G 3141 tempers. Engineers use it for drawn automotive and appliance parts where commercial-quality sheet cracks: r ≈ 1.6, n ≈ 0.21, 40 % elongation and 185 MPa yield, in cold-rolled coil, sheet and blanks including annealed, skin-passed, electro-galvanized (EG) and hot-dip galvanized (GI) variants. It is not an IF steel, so aging must be managed, and bare sheet has no corrosion resistance. For the most severe draws step up to SPCE/DC05 or DC06. SPCD has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,500°C (2,732 °F). SPCD has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 300 MPa (43.5 ksi) — weaker than 99% of steel grades. Elongation at break is 40% and the elastic modulus is 207 GPa (30 Msi).
What is SPCD used for?
- automotive panels
- appliance housings
- deep-drawn enclosures
Advantages
- Ductile — tolerates forming and impact — 40%, better than 99% of steel grades
- Forms and bends easily — 92/100, better than 99% of steel grades
- Conducts heat well — 52 W/m·K (30 BTU/hr·ft·°F), better than 98% of steel grades
- High electrical conductivity — 11 % IACS, better than 98% of steel grades
- Readily welded — 95/100, better than 97% of steel grades
Limitations
- Low strength — 180 MPa (26.1 ksi), worse than 99% of steel grades
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
SPCD properties
Typical room-temperature values; bars are the position among steel grades.
Physical3
SPCD has a density of 7.87 g/cm³ (0.284 lb/in³), heavier than 92% of steel grades. It melts at 1,500°C (2,732 °F).
Mechanical12
SPCD has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 300 MPa (43.5 ksi) — weaker than 99% of steel grades. Elongation at break is 40% and the elastic modulus is 207 GPa (30 Msi).
Thermal6
SPCD is rated for continuous service to 300°C (572 °F). It conducts heat at 52 W/m·K (30 BTU/hr·ft·°F), better than 98% of steel grades. Thermal expansion is 12.2 µm/m·K (6.78 µin/in·°F).
Electrical3
SPCD conducts electricity at 11 % IACS, better than 98% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of SPCD takes about 27 MJ of energy and emits 2.4 kg of CO₂ — less than 59% of steel grades. Typical recycled content is 22%.
Manufacturability7
SPCD's machinability is fair (50/100, worse than 53% of steel grades); weldability excellent (95/100); formability excellent (92/100).
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. SPCD is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SPCD
Is SPCD easy to machine?
Machines easily but gummy — sharp positive-rake tools, high speed and generous coolant to avoid burrs and built-up edge; punching/blanking is the normal cutting route for sheet.
Can SPCD be welded?
Excellent for resistance spot, MAG, laser and projection welding with no preheat; zinc-coated variants need higher current, more electrode dressing and fume extraction.
Can SPCD be formed, bent or molded?
Deep-drawing grade (r≈1.6, n≈0.21) — suitable for multi-stage draws, ironing and hemming; use skin-passed SD to avoid stretcher-strain marks and allow for ~2–3 month aging window on non-IF material.
SPCD 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 |
|---|---|---|
| CJIS G 3141 SPCD; DC04 limit is ≤0.08 | ≤ 0.1 | 0.05 |
| MnDC04 ≤0.40 | ≤ 0.5 | 0.25 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.04 | 0.01 |
| AlAl-killed practice, typical (not always specified) | ≥ 0.02 | 0.04 |
| Fe | balance |
What surface finishes work on SPCD?
Must be protected: zinc/Zn-Ni plating, zinc phosphate + cathodic e-coat, powder or wet paint; bare sheet is oiled only for transit and rusts in service.
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 SPCD in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
How much does SPCD cost?
SPCD is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
SPCD — frequently asked
What is SPCD used for?
SPCD is typically used for automotive panels, appliance housings and deep-drawn enclosures. In short: JIS deep-drawing standard; DC04 equivalent; good draw depth at low cost.
What is the yield strength of SPCD?
SPCD has a typical yield strength of 180 MPa (26.1 ksi) and a tensile strength of 300 MPa (43.5 ksi) — weaker than 99% of steel grades. Strength varies by condition: see the 2 listed tempers.
Is SPCD easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 53% of steel grades). Machines easily but gummy — sharp positive-rake tools, high speed and generous coolant to avoid burrs and built-up edge; punching/blanking is the normal cutting route for sheet.
Can SPCD be welded?
Yes — weldability is rated excellent (95/100). Excellent for resistance spot, MAG, laser and projection welding with no preheat; zinc-coated variants need higher current, more electrode dressing and fume extraction.
What surface finishes work on SPCD?
Must be protected: zinc/Zn-Ni plating, zinc phosphate + cathodic e-coat, powder or wet paint; bare sheet is oiled only for transit and rusts in service.
Can SPCD be formed, bent or molded?
Deep-drawing grade (r≈1.6, n≈0.21) — suitable for multi-stage draws, ironing and hemming; use skin-passed SD to avoid stretcher-strain marks and allow for ~2–3 month aging window on non-IF material.
What is the maximum service temperature of SPCD?
SPCD is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does SPCD cost?
SPCD is a budget-cost steel ($), 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
- JIS G 3141 — Cold-reduced carbon steel sheets and strip — JSA (2021)
- EN 10130 — Cold rolled low carbon steel flat products for cold forming (DC01–DC06) — CEN (2006)
- GB/T 5213 — Cold rolled low carbon steel sheet and strip for deep drawing — SAC (2019)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- ASM Handbook Vol.14B — Metalworking: Sheet Forming — ASM International (2006)
- Cold rolled DC01–DC06 / SPCC–SPCE flat product data — Nippon Steel / Baosteel (2022)
- (SPCD/DC04) — Mysteel / 1688 (2026)
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.