Steel DP590 · supply condition · default condition
Steel DP590-CR
Properties of the CR condition, compared with the other DP590 tempers.
Default stock condition for stampings that will be phosphated and e-coated; best surface and tightest thickness tolerance.
What is DP590-CR?
DP590-CR is DP590 supplied in the CR condition — default stock condition for stampings that will be phosphated and e-coated; best surface and tightest thickness tolerance. DP590-CR has a yield strength of 370 MPa (53.7 ksi) and a tensile strength of 630 MPa (91.4 ksi) — weaker than 70% of steel grades. Elongation at break is 24% and the elastic modulus is 210 GPa (30.5 Msi). DP590-CR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,480°C (2,696 °F).
Advantages
- Readily welded — 88/100, better than 87% of steel grades
- Forms and bends easily — 68/100, better than 83% of steel grades
- Conducts heat well — 48 W/m·K (27.7 BTU/hr·ft·°F), better than 79% of steel grades
Limitations
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
DP590-CR properties
Typical room-temperature values for DP590-CR — 10 properties are specific to this condition; the rest are grade-level values shared by every DP590 temper. Each bar shows where the value sits among the steel grades in FabDigit's library — further right is higher.
Physical3
DP590-CR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,480°C (2,696 °F).
Mechanical14
DP590-CR has a yield strength of 370 MPa (53.7 ksi) and a tensile strength of 630 MPa (91.4 ksi) — weaker than 70% of steel grades. Elongation at break is 24% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
DP590-CR is rated for continuous service to 200°C (392 °F). It conducts heat at 48 W/m·K (27.7 BTU/hr·ft·°F), better than 79% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
DP590-CR conducts electricity at 8.2 % IACS, better than 60% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of DP590-CR takes about 25 MJ of energy and emits 2.3 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 25%.
Manufacturability7
DP590-CR's machinability is fair (52/100, better than 52% of steel grades); weldability excellent (88/100); formability good (68/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other DP590 tempers and conditions
DP590 is also supplied in 5 other conditions. The full side-by-side table is on the DP590 overview.
- CRDefaultDefault stock condition for stampings that will be phosphated and e-coated; best surface and tightest thickness tolerance.370 MPa yield · 185 HB
- GalvanizedPick when the part needs sacrificial corrosion protection out of the press (body-in-white, closures, chassis brackets).375 MPa yield · 183 HB
Working with DP590-CR
Is DP590 easy to machine?
Trim, pierce and laser/plasma cut readily, but use higher-grade tool steel or coated punches — cut-edge quality drives hole-expansion cracking more than tool life.
Can DP590 be welded?
Excellent resistance spot weldability with a wide current range thanks to low carbon equivalent; MIG/laser welds are sound but expect modest HAZ softening and avoid high heat input.
Can DP590 be formed, bent or molded?
Stretch/draw-form with 10–25 % higher press tonnage than mild steel, allow for greater springback (over-bend, stake beads) and keep sheared-edge stretching low.
What surface finishes work on DP590?
Zinc-coated variants go straight to phosphate + e-coat; uncoated CR must be oiled and painted promptly since bare DP590 has no inherent corrosion resistance.
DP590 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 low for spot weldability | 0.06 – 0.14 | 0.09 |
| Mn | 0.9 – 2 | 1.5 |
| Si | 0.05 – 0.6 | 0.25 |
| Cr+Mohardenability, martensite formation on cooling | 0 – 1 | 0.25 |
| Aldeoxidation | 0.02 – 0.15 | 0.04 |
| Nb+Tigrain refinement (optional) | 0 – 0.15 | 0.03 |
| P | ≤ 0.04 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Fe | balance | — |
DP590-CR — frequently asked
What is DP590-CR used for?
DP590-CR is typically used for automotive cross beams, crash structures, seat frames, body rails and reinforcements, wheel discs and suspension brackets. In short: dual-phase sheet steel.
What is the yield strength of DP590-CR?
DP590-CR has a typical yield strength of 370 MPa (53.7 ksi) and a tensile strength of 630 MPa (91.4 ksi) — weaker than 70% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is DP590-CR easy to machine?
Reasonably — machinability is rated fair (52/100, better than 52% of steel grades). Trim, pierce and laser/plasma cut readily, but use higher-grade tool steel or coated punches — cut-edge quality drives hole-expansion cracking more than tool life.
Can DP590-CR be welded?
Yes — weldability is rated excellent (88/100). Excellent resistance spot weldability with a wide current range thanks to low carbon equivalent; MIG/laser welds are sound but expect modest HAZ softening and avoid high heat input.
What surface finishes work on DP590-CR?
Zinc-coated variants go straight to phosphate + e-coat; uncoated CR must be oiled and painted promptly since bare DP590 has no inherent corrosion resistance.
Can DP590-CR be formed, bent or molded?
Stretch/draw-form with 10–25 % higher press tonnage than mild steel, allow for greater springback (over-bend, stake beads) and keep sheared-edge stretching low.
What is the maximum service temperature of DP590-CR?
DP590-CR 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.
What is the difference between DP590-CR and DP590-BH?
CR is the default condition — default stock condition for stampings that will be phosphated and e-coated; best surface and tightest thickness tolerance. BH: design condition for in-service dent and yield performance of a formed and painted DP590 panel. Yield strength is 370 MPa in CR versus 460 MPa in BH.
Can FabDigit make parts in DP590-CR?
Yes — DP590-CR is available for sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- EN 10346 — Continuously hot-dip coated steel flat products (HCT590X, HDT580X) — CEN (2015)
- SAE J2745 / SAE J2340 — High-strength automotive sheet steel — SAE International (2019)
- Advanced High-Strength Steels Application Guidelines V7 — WorldAutoSteel (2021)
- Dual Phase DP 330/590 automotive steel datasheet — ArcelorMittal (2022)
- 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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.