Steel SPCD-AB (As built (as printed))
Print state
JIS SPCD · EN DC04, DC03
Annealed soft condition with bright rolled surface; niche, for severe drawing where surface gloss matters.
Values for the AB condition
Other SPCD tempers and conditions
SPCD is listed in 2 conditions; see the grade overview at SPCD.
- AD
- AB
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 |
ABThis page 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 |
What is SPCD-AB?
SPCD-AB is SPCD in the AB condition — annealed soft condition with bright rolled surface; niche, for severe drawing where surface gloss matters. SPCD-AB has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 295 MPa (42.8 ksi) — weaker than 99% of steel grades. Elongation at break is 42% and the elastic modulus is 207 GPa (30 Msi). SPCD-AB 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).
Advantages
- Ductile — tolerates forming and impact — 42%, better than 100% of steel grades
- Forms and bends easily — 94/100, 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 — 170 MPa (24.7 ksi), worse than 99% of steel grades
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
SPCD-AB properties
Typical room-temperature values for SPCD-AB; 20 are specific to this condition. Other listed values are SPCD reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
SPCD-AB 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-AB has a yield strength of 170 MPa (24.7 ksi) and a tensile strength of 295 MPa (42.8 ksi) — weaker than 99% of steel grades. Elongation at break is 42% and the elastic modulus is 207 GPa (30 Msi).
Thermal6
SPCD-AB 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-AB 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-AB 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-AB's machinability is fair (48/100, worse than 57% of steel grades); weldability excellent (95/100); formability excellent (94/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with SPCD-AB
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.
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.
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 | — |
SPCD-AB — frequently asked
What is SPCD-AB used for?
SPCD-AB 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-AB?
SPCD-AB has a typical yield strength of 170 MPa (24.7 ksi) and a tensile strength of 295 MPa (42.8 ksi) — weaker than 99% of steel grades. Strength varies by condition: see the 2 listed tempers.
Is SPCD-AB easy to machine?
Reasonably — machinability is rated fair (48/100, worse than 57% 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-AB 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-AB?
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-AB 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-AB?
SPCD-AB 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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.