Steel S700MC TMCP-L40
Grade
EN S700MC
TMCP-L40 = tMCP with low-temperature impact option
Producer-enhanced S700MC ordered with guaranteed Charpy energy at −40 °C for cold-climate cranes, trailers and mining equipment.
Values for the TMCP-L40 condition
Other S700MC tempers and conditions
S700MC is listed in 4 conditions; see the grade overview at S700MC.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
TMCP, stress relieved after forming/welding | Only for large welded frames needing dimensional stability; keep below ~580 °C and short holds, since TMCP strength is permanently lost at higher temperatures. | 700 | 780 | 16 | 21 HRC | 8.5 % IACS |
TMCPDefault Thermomechanically controlled processed | Standard as-delivered hot-rolled TMCP coil/sheet/plate; the condition in which all EN 10149-2 properties are guaranteed. | 740 | 810 | 14 | 245 HB | — |
descaled coil/sheet surface | Choose when a clean, scale-free surface is needed for direct painting, laser cutting or close-tolerance cold forming; mechanical properties identical to as-rolled TMCP. | 740 | 810 | 14 | 23 HRC | 8 % IACS |
TMCP-L40This page TMCP with low-temperature impact option | Producer-enhanced S700MC ordered with guaranteed Charpy energy at −40 °C for cold-climate cranes, trailers and mining equipment. | 760 | 820 | 15 | 24 HRC | 8 % IACS |
What is S700MC TMCP-L40?
S700MC TMCP-L40 is S700MC in the TMCP-L40 grade — producer-enhanced S700MC ordered with guaranteed Charpy energy at −40 °C for cold-climate cranes, trailers and mining equipment. S700MC TMCP-L40 has a yield strength of 760 MPa (110 ksi) and a tensile strength of 820 MPa (119 ksi) — stronger than 85% of steel grades. Elongation at break is 15% and the elastic modulus is 210 GPa (30.5 Msi). S700MC TMCP-L40 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F). TMCP is the default condition FabDigit quotes; TMCP-L40 is available on request or by drawing note.
Advantages
- Forms and bends easily — 72/100, better than 88% of steel grades
- High strength — 760 MPa (110 ksi), better than 85% of steel grades
- Readily welded — 87/100, better than 85% of steel grades
- Tough — resists crack growth — 115 MPa·√m (104.7 ksi·√in), better than 77% of steel grades
Limitations
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
S700MC TMCP-L40 properties
Typical room-temperature values for S700MC TMCP-L40; 24 are specific to this condition. Other listed values are S700MC reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
S700MC TMCP-L40 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,460°C (2,660 °F).
Mechanical17
S700MC TMCP-L40 has a yield strength of 760 MPa (110 ksi) and a tensile strength of 820 MPa (119 ksi) — stronger than 85% of steel grades. Elongation at break is 15% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
S700MC TMCP-L40 is rated for continuous service to 300°C (572 °F). It conducts heat at 40 W/m·K (23.1 BTU/hr·ft·°F), worse than 64% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
S700MC TMCP-L40 conducts electricity at 8 % IACS, better than 55% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of S700MC TMCP-L40 takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 25%.
Manufacturability7
S700MC TMCP-L40's machinability is fair (44/100, worse than 71% of steel grades); weldability excellent (87/100); formability very good (72/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with S700MC TMCP-L40
Is S700MC easy to machine?
Machines like a tough 250 HB HSLA steel — use coated carbide, rigid setups, moderate speeds and positive rake; drilling and tapping need reduced feeds versus mild steel.
Can S700MC be welded?
Very good weldability with low CEV (~0.40); use low-hydrogen consumables, control heat input (typically ≤1.5–2.0 kJ/mm) and interpass temperature to limit HAZ softening — matching or slightly undermatching filler is common.
Can S700MC be formed, bent or molded?
Designed for cold forming: bend transverse to rolling direction with a punch radius of about 1.5–2.5×t, allow for springback of 5–10° and avoid sheared-edge cracking by deburring or milling edges.
What surface finishes work on S700MC?
Shot-blast or pickle to remove mill scale, then zinc-rich primer/paint or powder coat; hot-dip galvanising is possible but the bath temperature slightly reduces yield strength.
S700MC 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 10149-2:2013 ladle analysis | ≤ 0.12 | 0.07 |
| Si | ≤ 0.6 | 0.2 |
| Mn | ≤ 2.1 | 1.8 |
| P | ≤ 0.03 | 0.01 |
| S | ≤ 0.02 | 0 |
| Altotal Al | ≥ 0.02 | 0.04 |
| NbNb+V+Ti ≤ 0.22 % | ≤ 0.09 | 0.05 |
| V | ≤ 0.2 | 0.05 |
| Ti | ≤ 0.22 | 0.1 |
| Mo | ≤ 0.5 | 0.15 |
| B | ≤ 0.01 | 0 |
| Fe | balance | — |
S700MC TMCP-L40 — frequently asked
What is S700MC TMCP-L40 used for?
S700MC TMCP-L40 is typically used for trailer chassis rails, mobile crane boom and outrigger parts, tipper and dump bodies, truck cross-members, lifting equipment brackets and concrete pump boom sections. In short: high-strength TMCP plate.
What is the yield strength of S700MC TMCP-L40?
S700MC TMCP-L40 has a typical yield strength of 760 MPa (110 ksi) and a tensile strength of 820 MPa (119 ksi) — stronger than 85% of steel grades. Strength varies by condition: see the 4 listed tempers.
Is S700MC TMCP-L40 easy to machine?
Not especially — machinability is rated fair (44/100, worse than 71% of steel grades). Machines like a tough 250 HB HSLA steel — use coated carbide, rigid setups, moderate speeds and positive rake; drilling and tapping need reduced feeds versus mild steel.
Can S700MC TMCP-L40 be welded?
Yes — weldability is rated excellent (87/100). Very good weldability with low CEV (~0.40); use low-hydrogen consumables, control heat input (typically ≤1.5–2.0 kJ/mm) and interpass temperature to limit HAZ softening — matching or slightly undermatching filler is common.
What surface finishes work on S700MC TMCP-L40?
Shot-blast or pickle to remove mill scale, then zinc-rich primer/paint or powder coat; hot-dip galvanising is possible but the bath temperature slightly reduces yield strength.
Can S700MC TMCP-L40 be formed, bent or molded?
Designed for cold forming: bend transverse to rolling direction with a punch radius of about 1.5–2.5×t, allow for springback of 5–10° and avoid sheared-edge cracking by deburring or milling edges.
What is the maximum service temperature of S700MC TMCP-L40?
S700MC TMCP-L40 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between S700MC TMCP and S700MC TMCP-SR?
TMCP is the default condition — standard as-delivered hot-rolled TMCP coil/sheet/plate; the condition in which all EN 10149-2 properties are guaranteed. TMCP-SR: only for large welded frames needing dimensional stability; keep below ~580 °C and short holds, since TMCP strength is permanently lost at higher temperatures. Yield strength is 740 MPa in TMCP versus 700 MPa in TMCP-SR.
Can FabDigit make parts in S700MC TMCP-L40?
Yes — S700MC TMCP-L40 is available for sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- EN 10149-2 Hot rolled flat products made of high yield strength steels for cold forming — Part 2: Thermomechanically rolled steels — CEN (2013)
- Strenx 700MC / Domex 700MC data sheet — SSAB (2023)
- Optim 700 MC Plus data sheet — Ruukki/SSAB (2022)
- ASM Handbook Vol.1: Properties and Selection — Irons, Steels and High-Performance Alloys — 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.