Steel TRIP1000
TRIP1000 is a high-strength transformation-induced-plasticity sheet steel rated at 720 MPa yield, 1040 MPa tensile and 14 % elongation (about 32 HRC), retaining useful ductility for energy absorption at the 1000 MPa level.
Reference datasheet — TRIP1000 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
TRIP1000 tempers and conditions
TRIP1000 is supplied in 2 conditions, soft to hard. CR is the default FabDigit quotes; the values on this page are for it.
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
CRDefault Cold rolled | Standard bare cold-rolled TRIP1000 coil/sheet for interior structural parts that get e-coat protection after assembly. | 720 | 1,040 | 14 | 32 HRC | 5.7 % IACS |
After paint-bake cycle | In-service condition of a formed part after the paint bake: yield strength rises by bake-hardening while elongation of the already-formed blank is consumed. | 770 | 1,055 | 12 | 33 HRC | 5.7 % IACS |
Supply forms, finishes and certifications
Ways TRIP1000 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 | Electrogalvanized | Coating |
GA | Galvannealed | Coating |
GI | Hot-dip galvanized | Coating |
ZM | Hot-dip zinc-magnesium-aluminium coated | Coating |
What is TRIP1000?
TRIP1000 is a high-strength transformation-induced-plasticity sheet steel rated at 720 MPa yield, 1040 MPa tensile and 14 % elongation (about 32 HRC), retaining useful ductility for energy absorption at the 1000 MPa level. It is used for cold-stamped crash members and is supplied bare (CR, CR+BH) or zinc-coated as GI, GA, EG and ZM. Machinability is poor, hole-expansion and stretch-flange limits are low, springback and sidewall curl are large, and the spot-weld window is narrow. DP980 is the nearest alternative where edge stretch and weld robustness matter more than global elongation. TRIP1000 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). TRIP1000 has a yield strength of 720 MPa (104 ksi) and a tensile strength of 1,040 MPa (151 ksi) — stronger than 82% of steel grades. Elongation at break is 14% and the elastic modulus is 205 GPa (29.7 Msi).
What is TRIP1000 used for?
- crash boxes
- door beams
- structural reinforcements
Advantages
- High strength — 720 MPa (104 ksi), better than 82% of steel grades
Limitations
- Limited service temperature — 200°C (392 °F), worse than 93% of steel grades
- Difficult to machine — 25/100, worse than 93% of steel grades
- Poor heat conductor — 28 W/m·K (16.2 BTU/hr·ft·°F), worse than 85% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
- Low electrical conductivity — 5.7 % IACS, worse than 80% of steel grades
TRIP1000 properties
Typical room-temperature values for TRIP1000-CR; bars are the position among steel grades.
Physical3
TRIP1000 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).
Mechanical16
TRIP1000 has a yield strength of 720 MPa (104 ksi) and a tensile strength of 1,040 MPa (151 ksi) — stronger than 82% of steel grades. Elongation at break is 14% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
TRIP1000 is rated for continuous service to 200°C (392 °F). It conducts heat at 28 W/m·K (16.2 BTU/hr·ft·°F), worse than 85% of steel grades. Thermal expansion is 11.5 µm/m·K (6.39 µin/in·°F).
Electrical3
TRIP1000 conducts electricity at 5.7 % IACS, worse than 80% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of TRIP1000 takes about 31 MJ of energy and emits 2.4 kg of CO₂ — more than 64% of steel grades. Typical recycled content is 20%.
Manufacturability6
TRIP1000's machinability is poor (25/100, worse than 93% of steel grades); weldability good (58/100); formability good (58/100).
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. TRIP1000 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with TRIP1000
Is TRIP1000 easy to machine?
Poor machinability at ~1000 MPa: use coated carbide or PCBN, rigid setups and low feeds; trimming/piercing is preferred over milling, and punch clearances of 10–15 % of thickness plus sharp tools are needed to avoid burr-initiated edge cracks.
Can TRIP1000 be welded?
Resistance spot welding is standard but with a narrow current window — use pulsed schedules, longer hold times or post-weld tempering pulses to combat interfacial fracture; keep heat input low in laser/MAG welding since the softened HAZ and lost retained austenite reduce local strength, and use low-hydrogen practice.
Can TRIP1000 be formed, bent or molded?
Cold stamp with high blank-holder force and stiff, hardened tooling (Class D2/PM tool steels); the high n-value gives good stretch formability but hole-expansion and stretch-flange limits are low, springback and sidewall curl are large so compensate the die or use post-stretch/restrike.
TRIP1000 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 retained-austenite carbon enrichment | 0.17 – 0.25 | 0.21 |
| Sisuppresses carbide precipitation during bainitic hold; may be partly replaced by Al in coated grades | 1.2 – 2 | 1.6 |
| Mn | 1.6 – 2.5 | 2 |
| AlSi-Al balanced designs improve galvanizability | 0.02 – 1.2 | 0.3 |
| P | ≤ 0.08 | 0.02 |
| S | ≤ 0.02 | 0 |
| Nbmicroalloy grain refinement (optional) | ≤ 0.06 | 0.03 |
| Tioptional | ≤ 0.06 | 0.02 |
| Voptional | ≤ 0.1 | |
| Cr+Mooptional hardenability additions | ≤ 0.6 | 0.2 |
| N | ≤ 0.01 | 0.01 |
| Fe | balance |
What surface finishes work on TRIP1000?
Supplied bare (oiled) or zinc coated; phosphate + cathodic e-coat is the normal protection route. Avoid acid pickling and aggressive electroplating on formed parts to limit hydrogen-assisted delayed cracking, and watch liquid-metal embrittlement when welding Zn-coated variants.
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
How much does TRIP1000 cost?
TRIP1000 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.
TRIP1000 — frequently asked
What is TRIP1000 used for?
TRIP1000 is typically used for crash boxes, door beams and structural reinforcements. In short: ductile 1000 MPa crash grade; high energy absorption per mass; more elongation than DP980.
What is the yield strength of TRIP1000?
TRIP1000 has a typical yield strength of 720 MPa (104 ksi) and a tensile strength of 1,040 MPa (151 ksi) — stronger than 82% of steel grades. Strength varies by condition: see the 2 listed tempers.
Is TRIP1000 easy to machine?
Not especially — machinability is rated poor (25/100, worse than 93% of steel grades). Poor machinability at ~1000 MPa: use coated carbide or PCBN, rigid setups and low feeds; trimming/piercing is preferred over milling, and punch clearances of 10–15 % of thickness plus sharp tools are needed to avoid burr-initiated edge cracks.
Can TRIP1000 be welded?
Yes — weldability is rated good (58/100). Resistance spot welding is standard but with a narrow current window — use pulsed schedules, longer hold times or post-weld tempering pulses to combat interfacial fracture; keep heat input low in laser/MAG welding since the softened HAZ and lost retained austenite reduce local strength, and use low-hydrogen practice.
What surface finishes work on TRIP1000?
Supplied bare (oiled) or zinc coated; phosphate + cathodic e-coat is the normal protection route. Avoid acid pickling and aggressive electroplating on formed parts to limit hydrogen-assisted delayed cracking, and watch liquid-metal embrittlement when welding Zn-coated variants.
Can TRIP1000 be formed, bent or molded?
Cold stamp with high blank-holder force and stiff, hardened tooling (Class D2/PM tool steels); the high n-value gives good stretch formability but hole-expansion and stretch-flange limits are low, springback and sidewall curl are large so compensate the die or use post-stretch/restrike.
What is the maximum service temperature of TRIP1000?
TRIP1000 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.
How much does TRIP1000 cost?
TRIP1000 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 — CEN (2015)
- VDA 239-100 — Sheet Steel for Cold Forming (CR700Y980T-TR) — VDA (2016)
- GB/T 20564.5 — Cold rolled high strength steel sheet for automobile: TRIP steel — SAC (2019)
- Advanced High-Strength Steels Application Guidelines V7 — WorldAutoSteel (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Automotive TRIP/multiphase cold-rolled steel product sheets — ArcelorMittal / thyssenkrupp / Baosteel (2023)
- AWS D8.1M — Specification for Automotive Weld Quality, Resistance Spot Welding of Steel — AWS (2013)
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.