DC06 vs DC05: DC06 is the ultimate formability — IF steel with r ≥ 2.1
DC06 vs DC05
Side-by-side chemical composition and mechanical property comparison.
Overview
DC06
1.0873
Interstitial-free (IF) cold-rolled steel — the absolute best formability of all automotive steels. Ultra-low carbon (<0.02%) with Ti/Nb microalloying to scavenge interstitial C and N. r-value ≥2.1. Used for the most demanding deep-drawn body panels (door inners, complex fenders, quarter panels) and structural reinforcements requiring extreme formability.
DC05
1.0312
Cold-rolled steel for extra deep drawing. The highest formability grade in the EN 10130 drawing steel series (r-value ≥1.8). Very low yield strength for excellent deep drawability. Used for complex deep-drawn automotive body panels (doors, fenders), kitchen sinks, washing machine drums, and any severe stamping application.
| DC06 | DC05 | |
|---|---|---|
| Material Number | 1.0873 | 1.0312 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10130 | EN 10130 |
Chemical composition (wt%) — Pro
| Element | DC06 | DC05 | Overlap |
|---|---|---|---|
| C | 0–0.02% | 0–0.06% | OK |
| Mn | 0–0.25% | 0–0.35% | OK |
| P | 0–0.02% | 0–0.025% | OK |
| S | 0–0.02% | 0–0.025% | OK |
| Ti |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | DC06 | DC05 | Unit |
|---|---|---|---|
| Tensile Strength | 270–350 | 270–330 | MPa |
| Yield Strength | 100–170 | 100–160 | MPa |
| Elongation | ≥ 38 | ≥ 40 | % |
| Elastic Modulus | |||
| Density |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
DC06 is interstitial-free (C<0.02%) with Ti/Nb microalloying vs DC05 (C<0.06%). DC06 has higher r-value (≥2.1 vs ≥1.8) and slightly lower YS. Choose DC06 for the most extreme draws; DC05 when slightly less formability is acceptable at lower cost.
Frequently Asked Questions
Is DC06 the same as DC05?
DC06 and DC05 have a 85% composition overlap. DC06 is the ultimate formability — IF steel with r ≥ 2.1
Can I replace DC06 with DC05?
In many cases, yes. The compositions overlap significantly (85%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between DC06 and DC05?
The main differences are in the following elements: overall alloying content. DC06 is a Carbon Steel grade, while DC05 is a Carbon Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.