Steel P265TR2 +SR (Stress relieved)
Heat-treated state
EN 1.0259
Cold-drawn strength retained but residual stress removed — best for hydraulic lines that must stay straight after cutting.
Values for the +SR condition
Other P265TR2 tempers and conditions
P265TR2 is listed in 6 conditions; see the grade overview at P265TR2.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Maximum ductility for severe cold forming, tube expanding and deep bending; lowest strength of the set. | 255 | 420 | 30 | 115 HB | 11.5 % IACS |
+NDefault Normalized | Standard delivery condition for pressure tube — best combination of guaranteed yield, elongation and 0 °C impact energy. | 300 | 470 | 25 | 130 HB | — |
Hot rolled | Cheapest welded-tube condition where the mechanical and impact requirements are already met as rolled. | 310 | 480 | 24 | 135 HB | 11 % IACS |
Cold drawn, lightly cold worked after annealing | Choose when precision dimensions must be combined with good bending and flaring ability. | 350 | 470 | 14 | 150 HB | 11 % IACS |
+SRThis page Stress relieved | Cold-drawn strength retained but residual stress removed — best for hydraulic lines that must stay straight after cutting. | 400 | 510 | 12 | 160 HB | 11 % IACS |
Cold drawn | Precision tube condition for tight tolerance and high strength where only limited further bending is needed. | 460 | 560 | 8 | 178 HB | 10.5 % IACS |
What is P265TR2 +SR?
P265TR2 +SR is P265TR2 heat treated to +SR — cold-drawn strength retained but residual stress removed — best for hydraulic lines that must stay straight after cutting. P265TR2 +SR has a yield strength of 400 MPa (58 ksi) and a tensile strength of 510 MPa (74 ksi) — weaker than 60% of steel grades. Elongation at break is 12% and the elastic modulus is 210 GPa (30.5 Msi). P265TR2 +SR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,495°C (2,723 °F). +N is the default condition FabDigit quotes; +SR is available on request or by drawing note.
Advantages
- High electrical conductivity — 11 % IACS, better than 98% of steel grades
- Easy to machine — 68/100, better than 95% of steel grades
- Low embodied carbon — 1.9 kg CO₂/kg, better than 92% of steel grades
- Readily welded — 90/100, better than 90% of steel grades
- Conducts heat well — 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades
Limitations
- Limited ductility — 12%, worse than 84% of steel grades
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
P265TR2 +SR properties
Typical room-temperature values for P265TR2 +SR; 22 are specific to this condition. Other listed values are P265TR2 reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
P265TR2 +SR has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,495°C (2,723 °F).
Mechanical16
P265TR2 +SR has a yield strength of 400 MPa (58 ksi) and a tensile strength of 510 MPa (74 ksi) — weaker than 60% of steel grades. Elongation at break is 12% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
P265TR2 +SR is rated for continuous service to 300°C (572 °F). It conducts heat at 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
P265TR2 +SR conducts electricity at 11 % IACS, better than 98% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of P265TR2 +SR takes about 25 MJ of energy and emits 1.9 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability6
P265TR2 +SR's machinability is good (68/100, better than 95% of steel grades); weldability excellent (90/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with P265TR2 +SR
Is P265TR2 easy to machine?
Machines like 1018/1020 — use sharp positive-rake tools and generous feed to avoid built-up edge and gummy chips; cold-drawn (+C) condition cuts and chips more cleanly than annealed.
Can P265TR2 be welded?
Excellent weldability with SMAW/GTAW/GMAW/SAW using E7018 or ER70S-6 class filler; CEV ≤ 0.40 means no preheat below ~20 mm, keep interpass moderate to preserve fine-grain toughness.
Can P265TR2 be formed, bent or molded?
Cold bends to about 2–3×D in +N or +A condition and passes the standard flattening/flaring tests; hot form at 850–1000 °C followed by renormalizing to restore TR2 impact values.
What surface finishes work on P265TR2?
No natural corrosion resistance — specify shot blast plus primer/paint, hot-dip galvanizing, phosphate + oil or zinc-nickel plating for service; polishes only to a modest mechanical finish.
P265TR2 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 |
|---|---|---|
| Cladle analysis | ≤ 0.2 | 0.16 |
| Si | ≤ 0.4 | 0.25 |
| Mn | 0.4 – 1.4 | 1 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Altotal Al, fine-grain / fully killed practice | ≥ 0.02 | 0.03 |
| CrCr+Cu+Mo+Ni ≤ 0.70 | ≤ 0.3 | 0.05 |
| Cu | ≤ 0.3 | 0.1 |
| Mo | ≤ 0.08 | 0.02 |
| Ni | ≤ 0.3 | 0.05 |
| Nbmicro-alloy, grain refinement | ≤ 0.05 | 0.01 |
| Ti | ≤ 0.04 | 0.01 |
| V | ≤ 0.05 | 0.01 |
| Febalance; CEV ≤ 0.40 typical | balance | — |
P265TR2 +SR — frequently asked
What is P265TR2 +SR used for?
P265TR2 +SR is typically used for hydraulic cylinder tubes for cold-climate equipment, pneumatic tube fittings, machinery structural tubes and agricultural equipment tubing. In short: tougher than P265TR1; impact-tested tube grade; fine-grain weldable steel.
What is the yield strength of P265TR2 +SR?
P265TR2 +SR has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 510 MPa (74 ksi) — weaker than 60% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is P265TR2 +SR easy to machine?
Reasonably — machinability is rated good (68/100, better than 95% of steel grades). Machines like 1018/1020 — use sharp positive-rake tools and generous feed to avoid built-up edge and gummy chips; cold-drawn (+C) condition cuts and chips more cleanly than annealed.
Can P265TR2 +SR be welded?
Yes — weldability is rated excellent (90/100). Excellent weldability with SMAW/GTAW/GMAW/SAW using E7018 or ER70S-6 class filler; CEV ≤ 0.40 means no preheat below ~20 mm, keep interpass moderate to preserve fine-grain toughness.
What surface finishes work on P265TR2 +SR?
No natural corrosion resistance — specify shot blast plus primer/paint, hot-dip galvanizing, phosphate + oil or zinc-nickel plating for service; polishes only to a modest mechanical finish.
Can P265TR2 +SR be formed, bent or molded?
Cold bends to about 2–3×D in +N or +A condition and passes the standard flattening/flaring tests; hot form at 850–1000 °C followed by renormalizing to restore TR2 impact values.
What is the maximum service temperature of P265TR2 +SR?
P265TR2 +SR 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.
Sources
- EN 10216-1 Seamless steel tubes for pressure purposes — Non-alloy steel tubes with specified room temperature properties — CEN (2013)
- EN 10217-1 Welded steel tubes for pressure purposes — Non-alloy steel tubes with specified room temperature properties — CEN (2019)
- EN 10305-1/-2 Steel tubes for precision applications — Delivery conditions +C, +LC, +SR, +A, +N — CEN (2016)
- EN 10027-2 / Werkstoffnummer 1.0259 — CEN (2015)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.19 — Fatigue and Fracture — ASM International (1996)
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.