Steel DP980 · supply condition · default condition
Steel DP980-CR
Properties of the CR condition, compared with the other DP980 tempers.
Default stocked condition: bare cold-rolled coil/blank for structural stampings that are later e-coated or painted.
What is DP980-CR?
DP980-CR is DP980 supplied in the CR condition — default stocked condition: bare cold-rolled coil/blank for structural stampings that are later e-coated or painted. DP980-CR has a yield strength of 680 MPa (98.6 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 80% of steel grades. Elongation at break is 9% and the elastic modulus is 210 GPa (30.5 Msi). DP980-CR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,450°C (2,642 °F).
Advantages
- High strength — 680 MPa (98.6 ksi), better than 80% of steel grades
Limitations
- Limited ductility — 9%, worse than 93% of steel grades
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Difficult to machine — 25/100, worse than 93% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
DP980-CR properties
Typical room-temperature values for DP980-CR — 13 properties are specific to this condition; the rest are grade-level values shared by every DP980 temper. Each bar shows where the value sits among the steel grades in FabDigit's library — further right is higher.
Physical3
DP980-CR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,450°C (2,642 °F).
Mechanical12
DP980-CR has a yield strength of 680 MPa (98.6 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 80% of steel grades. Elongation at break is 9% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
DP980-CR is rated for continuous service to 200°C (392 °F). It conducts heat at 45 W/m·K (26 BTU/hr·ft·°F), better than 66% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
DP980-CR conducts electricity at 9 % IACS, better than 70% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 87% of steel grades.
Sustainability4
Producing a kilogram of DP980-CR takes about 30 MJ of energy and emits 2.3 kg of CO₂ — more than 55% of steel grades. Typical recycled content is 20%.
Manufacturability7
DP980-CR's machinability is poor (25/100, worse than 93% of steel grades); weldability good (60/100); formability fair (35/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Other DP980 tempers and conditions
DP980 is also supplied in 5 other conditions. The full side-by-side table is on the DP980 overview.
- CRDefaultDefault stocked condition: bare cold-rolled coil/blank for structural stampings that are later e-coated or painted.680 MPa yield · 32 HRC
- GIPick when the stamping needs sacrificial corrosion protection straight from the coil (unexposed body-in-white parts).670 MPa yield · 315 HV
Working with DP980-CR
Is DP980 easy to machine?
Rarely machined; trim/pierce with high-hardness (PM or carbide) tooling, ≥12 % clearance and shear angles to limit edge cracking, since cut edges lose local ductility.
Can DP980 be welded?
Resistance spot weldable but use lower current with longer/pulsed schedules plus post-weld tempering pulse to reduce HAZ softening and interfacial (button-pullout) failure; for arc/laser welds keep heat input low and avoid hydrogen-bearing consumables.
Can DP980 be formed, bent or molded?
Cold formable but low total elongation and hole-expansion: allow 3–5× more springback compensation than mild steel, use generous bend radii (≈3–4 t), minimize burr and stretched edges, and expect high press tonnage (~2–3× mild steel).
What surface finishes work on DP980?
No inherent corrosion resistance — supply as GI/GA/EG coil or phosphate + cathodic e-coat/paint; avoid acid pickling or electroplating without immediate bake-out because of delayed hydrogen-assisted cracking risk.
DP980 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 |
|---|---|---|
| Ccontrols martensite hardness | 0.08 – 0.17 | 0.13 |
| Mnhardenability | 1.5 – 2.6 | 2.2 |
| Si | 0.1 – 0.8 | 0.4 |
| CrCr+Mo typically ≤1.0 % | 0 – 0.6 | 0.25 |
| Mosuppresses bainite/pearlite on cooling | 0 – 0.4 | 0.2 |
| Aldeoxidation | 0.02 – 0.1 | 0.04 |
| Nbmicroalloy, grain refinement | 0 – 0.06 | 0.03 |
| Timicroalloy | 0 – 0.06 | 0.02 |
| Pimpurity limit | ≤ 0.04 | 0.01 |
| Simpurity limit | ≤ 0.02 | 0 |
| Boptional, some producers | 0 – 0.01 | — |
| Fe | balance | — |
DP980-CR — frequently asked
What is DP980-CR used for?
DP980-CR is typically used for bumper beams, B-pillar reinforcements, rocker and sill beams, front and rear rails, door intrusion beams and seat frame structures. In short: premium dual-phase sheet.
What is the yield strength of DP980-CR?
DP980-CR has a typical yield strength of 680 MPa (98.6 ksi) and a tensile strength of 1,030 MPa (149 ksi) — stronger than 80% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is DP980-CR easy to machine?
Not especially — machinability is rated poor (25/100, worse than 93% of steel grades). Rarely machined; trim/pierce with high-hardness (PM or carbide) tooling, ≥12 % clearance and shear angles to limit edge cracking, since cut edges lose local ductility.
Can DP980-CR be welded?
Yes — weldability is rated good (60/100). Resistance spot weldable but use lower current with longer/pulsed schedules plus post-weld tempering pulse to reduce HAZ softening and interfacial (button-pullout) failure; for arc/laser welds keep heat input low and avoid hydrogen-bearing consumables.
What surface finishes work on DP980-CR?
No inherent corrosion resistance — supply as GI/GA/EG coil or phosphate + cathodic e-coat/paint; avoid acid pickling or electroplating without immediate bake-out because of delayed hydrogen-assisted cracking risk.
Can DP980-CR be formed, bent or molded?
Cold formable but low total elongation and hole-expansion: allow 3–5× more springback compensation than mild steel, use generous bend radii (≈3–4 t), minimize burr and stretched edges, and expect high press tonnage (~2–3× mild steel).
What is the maximum service temperature of DP980-CR?
DP980-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 DP980-CR and DP980-HY?
CR is the default condition — default stocked condition: bare cold-rolled coil/blank for structural stampings that are later e-coated or painted. HY: pick for crash/anti-intrusion members where high yield and dent/collapse resistance dominate and forming is mild (roll forming, simple stampings). Yield strength is 680 MPa in CR versus 780 MPa in HY.
Can FabDigit make parts in DP980-CR?
Yes — DP980-CR is available for sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.
Sources
- EN 10338 — Hot-rolled and cold-rolled uncoated multiphase steel products (HCT980X) — CEN (2015)
- VDA 239-100 — Sheet steel for cold forming (CR700Y980T-DP) — VDA (2016)
- Advanced High-Strength Steels Application Guidelines v7.0 — WorldAutoSteel (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Dual-phase DP980 cold-rolled and coated steel datasheets — Baosteel / ArcelorMittal / POSCO (2023)
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.