Steel DP600
DP600 (SPFC590, HCT600X) is the workhorse mid-strength dual-phase sheet steel, balancing stretch formability against crash energy absorption.
Reference datasheet — DP600 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.
Values for the CR condition
DP600 tempers and conditions
DP600 is supplied in 3 conditions, soft to hard. CR is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
CRDefault Cold rolled | Baseline uncoated cold-rolled coil/blank for parts that are painted or e-coated after forming. | 380 | 640 | 24 | 13 HRC | 8.5 % IACS |
Hot rolled | Thicker gauges (roughly 2–6 mm) for wheel discs/rims, chassis arms and rails where cold-rolled thickness is insufficient. | 380 | 630 | 22 | 14 HRC | 8.5 % IACS |
2 % prestrain + bake hardening | Design condition for the formed and painted part — yield strength rises appreciably, remaining ductility drops. | 470 | 660 | 19 | 14 HRC | 8.5 % IACS |
Supply forms, finishes and certifications
Ways DP600 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
EG | EG | Coating |
GA | GA | Coating |
GI | GI | Coating |
What is DP600?
DP600 (SPFC590, HCT600X) is the workhorse mid-strength dual-phase sheet steel, balancing stretch formability against crash energy absorption. Typical properties are 380 MPa yield, 640 MPa tensile, 24 % elongation and about 190 HB, with coil supplied CR, HR, 2PCT+BH and in GI, GA or EG coatings for wheel discs, rails and seat structures. Press loads and springback are 2–3× those of drawing-quality steel, the spot-weld current window is narrower and some HAZ softening is unavoidable; DP450 is the choice where formability dominates over strength. DP600 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). DP600 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 68% of steel grades. Elongation at break is 24% and the elastic modulus is 210 GPa (30.5 Msi).
What is DP600 used for?
- wheel discs
- cross members
- seat rails
- brackets
Advantages
- Forms and bends easily — 68/100, better than 83% of steel grades
- Readily welded — 72/100, better than 75% of steel grades
Limitations
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
DP600 properties
Typical room-temperature values for DP600-CR; bars are the position among steel grades.
Physical3
DP600 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).
Mechanical15
DP600 has a yield strength of 380 MPa (55.1 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 68% of steel grades. Elongation at break is 24% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
DP600 is rated for continuous service to 200°C (392 °F). It conducts heat at 46 W/m·K (26.6 BTU/hr·ft·°F), better than 71% of steel grades. Thermal expansion is 12.5 µm/m·K (6.94 µin/in·°F).
Electrical3
DP600 conducts electricity at 8.5 % IACS, better than 63% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of DP600 takes about 30 MJ of energy and emits 2.3 kg of CO₂ — more than 56% of steel grades. Typical recycled content is 25%.
Manufacturability6
DP600's machinability is fair (45/100, worse than 65% of steel grades); weldability very good (72/100); 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.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. DP600 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with DP600
Is DP600 easy to machine?
Drilling/trimming is harder than mild steel — use coated carbide, reduced feed per tooth, and expect fast punch wear; laser or waterjet is preferred for prototype blanks.
Can DP600 be welded?
Good for RSW/laser/MAG but use a narrowed spot-weld current window, higher electrode force and stepper control; HAZ softening and a small strength/ductility loss are normal, and zinc coatings need extra current and electrode dressing.
Can DP600 be formed, bent or molded?
Strong work hardening (n ≈ 0.17–0.21) gives good stretch formability but 2–3× the springback and press load of DLC steel — compensate tool geometry, use tighter blank-holder control and avoid sharp bends below about 2t.
DP600 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 |
|---|---|---|
| CEN 10338 HCT600X limit | ≤ 0.14 | 0.09 |
| Si | ≤ 0.8 | 0.3 |
| Mn | ≤ 2 | 1.6 |
| P | ≤ 0.08 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Altotal Al, deoxidation | 0.02 – 0.1 | 0.04 |
| Cr+Mohardenability additions | ≤ 1 | 0.25 |
| Nb+Timicroalloying, grain refinement | ≤ 0.15 | 0.03 |
| Voptional | ≤ 0.2 | |
| Boptional | ≤ 0.01 | |
| Fe | balance |
What surface finishes work on DP600?
Bare CR needs phosphate + e-coat or paint immediately; GI/GA blanks take conventional automotive pretreatment and e-coat well; avoid hot-dip re-galvanizing of formed parts because bath temperature tempers the martensite.
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 DP600 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Similar grades
- SPFC590HCT600X
How much does DP600 cost?
DP600 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.
DP600 — frequently asked
What is DP600 used for?
DP600 is typically used for wheel discs, cross members, seat rails and brackets. In short: workhorse dual-phase grade; balanced strength and formability; good crash energy absorption.
What is the yield strength of DP600?
DP600 has a typical yield strength of 380 MPa (55.1 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 68% of steel grades. Strength varies by condition: see the 3 listed tempers.
Is DP600 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 65% of steel grades). Drilling/trimming is harder than mild steel — use coated carbide, reduced feed per tooth, and expect fast punch wear; laser or waterjet is preferred for prototype blanks.
Can DP600 be welded?
Yes — weldability is rated very good (72/100). Good for RSW/laser/MAG but use a narrowed spot-weld current window, higher electrode force and stepper control; HAZ softening and a small strength/ductility loss are normal, and zinc coatings need extra current and electrode dressing.
What surface finishes work on DP600?
Bare CR needs phosphate + e-coat or paint immediately; GI/GA blanks take conventional automotive pretreatment and e-coat well; avoid hot-dip re-galvanizing of formed parts because bath temperature tempers the martensite.
Can DP600 be formed, bent or molded?
Strong work hardening (n ≈ 0.17–0.21) gives good stretch formability but 2–3× the springback and press load of DLC steel — compensate tool geometry, use tighter blank-holder control and avoid sharp bends below about 2t.
What is the maximum service temperature of DP600?
DP600 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 DP600-CR and DP600-HR?
CR is the default condition — baseline uncoated cold-rolled coil/blank for parts that are painted or e-coated after forming. HR: thicker gauges (roughly 2–6 mm) for wheel discs/rims, chassis arms and rails where cold-rolled thickness is insufficient. Yield strength is 380 MPa in CR versus 380 MPa in HR.
How much does DP600 cost?
DP600 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
- EN 10338 — Hot-rolled and cold-rolled uncoated multiphase steel products for cold forming (HCT600X) — CEN (2015)
- VDA 239-100 — Sheet Steel for Cold Forming (CR330Y590T-DP) — VDA (2016)
- JIS G 3135 / SPFC590 high-strength cold-rolled sheet — JISC (2018)
- Advanced High-Strength Steels Application Guidelines v7.0 — WorldAutoSteel (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- Dual-phase steel DP600 / dogal DP600 coil datasheets — ArcelorMittal / voestalpine / Baosteel (2023)
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.