Steel P265TR1-AR (As-rolled)
Heat-treated state · default condition
EN 1.0258
Standard, cheapest delivery condition for P265TR1 seamless/welded pressure tube at room-temperature service.
Values for the AR condition
Other P265TR1 tempers and conditions
P265TR1 is listed in 6 conditions; see the grade overview at P265TR1.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Maximum ductility for tube forming, deep bending, expanding and flaring; lowest strength of the standard conditions. | 260 | 420 | 30 | 115 HB | 10 % IACS |
Normalized | Pick when uniform fine-grain structure, better toughness and consistent bending/flanging behaviour are needed. | 295 | 460 | 28 | 125 HB | — |
ARDefaultThis page As-rolled | Standard, cheapest delivery condition for P265TR1 seamless/welded pressure tube at room-temperature service. | 300 | 470 | 26 | 130 HB | — |
Annealed then lightly cold finished | Good dimensional accuracy combined with near-annealed ductility; used for tubes that are bent after cutting. | 310 | 450 | 22 | 130 HB | 10 % IACS |
Stress relieved | Cold-drawn accuracy with residual stress removed — the usual choice for hydraulic lines that must be bent and flared. | 390 | 490 | 15 | 150 HB | 10 % IACS |
Cold drawn | Precision-tube condition for tight tolerance, smooth bore and highest strength; low ductility, avoid tight bending. | 480 | 570 | 8 | 175 HB | — |
What is P265TR1-AR?
P265TR1-AR is P265TR1 heat treated to AR — standard, cheapest delivery condition for P265TR1 seamless/welded pressure tube at room-temperature service. P265TR1-AR has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 86% of steel grades. Elongation at break is 26% and the elastic modulus is 210 GPa (30.5 Msi). P265TR1-AR 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).
Advantages
- Readily welded — 92/100, better than 93% of steel grades
- Forms and bends easily — 78/100, better than 91% of steel grades
- Conducts heat well — 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades
- High electrical conductivity — 10 % IACS, better than 83% of steel grades
- Ductile — tolerates forming and impact — 26%, better than 82% of steel grades
Limitations
- Low strength — 300 MPa (43.5 ksi), worse than 86% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
P265TR1-AR properties
Typical room-temperature values for P265TR1-AR; 11 are specific to this condition. Other listed values are P265TR1 reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
P265TR1-AR 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).
Mechanical16
P265TR1-AR has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 86% of steel grades. Elongation at break is 26% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
P265TR1-AR 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
P265TR1-AR conducts electricity at 10 % IACS, better than 83% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of P265TR1-AR takes about 25 MJ of energy and emits 2.1 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability7
P265TR1-AR's machinability is good (60/100, better than 83% of steel grades); weldability excellent (92/100); formability very good (78/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with P265TR1-AR
Is P265TR1 easy to machine?
Free machining at HSS/carbide speeds but gummy in the annealed state — use positive rake, sharp edges and good chip breakers; cold-drawn (+C) condition gives the best surface finish.
Can P265TR1 be welded?
Excellent weldability by all common processes (GTAW/GMAW/SAW/HFI) with CEV ≈ 0.35–0.40; no preheat for wall thicknesses below ~25 mm, use low-hydrogen consumables (e.g. G3Si1 / E7018).
Can P265TR1 be formed, bent or molded?
Cold bends to about 2–3×D in +N/+A condition; use +SR or +A for flaring, expanding and tight bends, and normalize after heavy cold work if pressure service is required.
What surface finishes work on P265TR1?
No natural corrosion resistance — must be zinc-plated, hot-dip galvanized, phosphated+oiled or painted; passes typical shot-blast/primer paint lines without issue.
P265TR1 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 |
|---|---|---|
| Ccast analysis, EN 10216-1 | ≤ 0.2 | 0.16 |
| Si | ≤ 0.35 | 0.22 |
| Mn | 0.4 – 1.2 | 0.85 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.03 | 0.01 |
| CrCr+Cu+Mo+Ni ≤ 0.70 total | ≤ 0.3 | 0.05 |
| Cu | ≤ 0.3 | 0.1 |
| Mo | ≤ 0.08 | 0.02 |
| Ni | ≤ 0.3 | 0.05 |
| Nb | ≤ 0.02 | 0.01 |
| Ti | ≤ 0.04 | 0.01 |
| V | ≤ 0.02 | 0.01 |
| Altotal Al, for fully killed / fine-grain practice | ≥ 0.02 | 0.03 |
| Fe | balance | — |
P265TR1-AR — frequently asked
What is P265TR1-AR used for?
P265TR1-AR is typically used for hydraulic and pneumatic tubing, machinery tube frames, structural tube components and cylinder liners. In short: stronger than P235TR2; highly weldable tube steel; needs protective coating.
What is the yield strength of P265TR1-AR?
P265TR1-AR has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 86% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is P265TR1-AR easy to machine?
Reasonably — machinability is rated good (60/100, better than 83% of steel grades). Free machining at HSS/carbide speeds but gummy in the annealed state — use positive rake, sharp edges and good chip breakers; cold-drawn (+C) condition gives the best surface finish.
Can P265TR1-AR be welded?
Yes — weldability is rated excellent (92/100). Excellent weldability by all common processes (GTAW/GMAW/SAW/HFI) with CEV ≈ 0.35–0.40; no preheat for wall thicknesses below ~25 mm, use low-hydrogen consumables (e.g. G3Si1 / E7018).
What surface finishes work on P265TR1-AR?
No natural corrosion resistance — must be zinc-plated, hot-dip galvanized, phosphated+oiled or painted; passes typical shot-blast/primer paint lines without issue.
Can P265TR1-AR be formed, bent or molded?
Cold bends to about 2–3×D in +N/+A condition; use +SR or +A for flaring, expanding and tight bends, and normalize after heavy cold work if pressure service is required.
What is the maximum service temperature of P265TR1-AR?
P265TR1-AR 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 Steel tubes for precision applications — Seamless cold drawn tubes — CEN (2016)
- EN 10027 / CR 10260 designation systems for steels (material number 1.0258) — CEN (2016)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.6 & Vol.16 — Welding, Brazing and Soldering / Machining — ASM International (1993)
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.