Steel E275
EN E275
E275 is a non-alloy low-carbon steel specified in EN 10305 (1.0225) for cold-drawn precision steel tube, and should not be confused with the structural grade S275.
Reference datasheet — E275 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 +N condition
E275 tempers and conditions
E275 is supplied in 6 conditions, soft to hard. +N is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Choose when maximum ductility is needed for tube bending, flaring, expanding or subsequent deep cold forming. | 255 | 420 | 32 | 120 HB | — |
Hot rolled | Cheapest supply condition for hot-finished tube and bar where only nominal strength is required and no forming or precision tolerance is needed. | 300 | 490 | 23 | 145 HB | — |
+NDefault Normalized | Default stocked condition: uniform fine-grained structure with guaranteed ReH ≥ 275 MPa, good toughness and reliable weldability for pressure and mechanical tube. | 310 | 480 | 26 | 140 HB | — |
Lightly cold drawn | Use where precision-tube tolerances and a bright surface are needed but the part must still be bent or flared. | 400 | 520 | 16 | 160 HB | — |
Stress relieved | Pick when cold-drawn strength and close tolerance must be kept but residual stress and distortion during machining must be reduced. | 450 | 560 | 12 | 170 HB | — |
Cold drawn | Highest strength and hardness with the tightest tolerances and best surface — for hydraulic cylinder, shaft and roller tube that will not be bent. | 550 | 640 | 6 | 195 HB | — |
What is E275?
E275 is a non-alloy low-carbon steel specified in EN 10305 (1.0225) for cold-drawn precision steel tube, and should not be confused with the structural grade S275. It balances strength and weldability, giving about 310 MPa yield, 480 MPa tensile, 26 % elongation, 140 HB and 77 HRB, with service temperature up to 350 °C, in +U, +A, +N, +SR, +LC and +C conditions. Machinability is moderate (score 62) and the bare surface needs protection; hard chrome plating is standard where the bore runs a seal. E315 is the option when higher tube strength is needed. E275 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F). E275 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 83% of steel grades. Elongation at break is 26% and the elastic modulus is 210 GPa (30.5 Msi).
What is E275 used for?
- precision steel tubing
- hydraulic cylinder tubes
- machine components
- engineering tube stock
Advantages
- High electrical conductivity — 10.8 % IACS, better than 94% of steel grades
- Readily welded — 90/100, better than 90% of steel grades
- Easy to machine — 62/100, better than 89% of steel grades
- Forms and bends easily — 72/100, better than 88% of steel grades
- Conducts heat well — 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades
Limitations
- Low strength — 310 MPa (45 ksi), worse than 83% of steel grades
E275 properties
Typical room-temperature values for E275-+N; bars are the position among steel grades.
Physical3
E275 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
E275 has a yield strength of 310 MPa (45 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 83% of steel grades. Elongation at break is 26% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
E275 is rated for continuous service to 350°C (662 °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
E275 conducts electricity at 10.8 % IACS, better than 94% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of E275 takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 30%.
Manufacturability7
E275's machinability is good (62/100, better than 89% of steel grades); weldability excellent (90/100); formability very good (72/100).
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. E275 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with E275
Is E275 easy to machine?
Machines easily but chips are gummy in +A/+N — use sharp positive-rake carbide, generous feed and coolant; cold-drawn +C/+SR gives the cleanest chip breaking and best surface.
Can E275 be welded?
Excellent weldability by MAG, TIG, resistance and laser with ER70S-type filler; CEV ≤ ~0.40 so preheat only for heavy walls or low ambient temperature.
Can E275 be formed, bent or molded?
Bend, flare and expand in +A or +N; +C tube work-hardens and cracks in tight bends, so specify +SR/+LC when forming after drawing.
E275 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 10305-2 / EN 10297-1 | ≤ 0.22 | 0.18 |
| Si | ≤ 0.35 | 0.2 |
| Mn | ≤ 1.5 | 1 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.03 | 0.02 |
| Febalance, residuals (Cr, Ni, Cu, Mo) not specified | balance |
What surface finishes work on E275?
No anodizing — protect by zinc electroplating, hot-dip galvanizing, phosphate + oil, or e-coat/paint; hard chrome plating is standard for cylinder-tube bores.
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
Equivalent designations
Standards and trade names that resolve to Steel E275 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.0225
How much does E275 cost?
E275 is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
E275 — frequently asked
What is E275 used for?
E275 is typically used for precision steel tubing, hydraulic cylinder tubes, machine components and engineering tube stock. In short: cold-drawn cylinder tube grade; weldability score 90; service to 350 °C.
What is the yield strength of E275?
E275 has a typical yield strength of 310 MPa (45 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 83% of steel grades. Strength varies by condition: see the 6 listed tempers.
Is E275 easy to machine?
Reasonably — machinability is rated good (62/100, better than 89% of steel grades). Machines easily but chips are gummy in +A/+N — use sharp positive-rake carbide, generous feed and coolant; cold-drawn +C/+SR gives the cleanest chip breaking and best surface.
Can E275 be welded?
Yes — weldability is rated excellent (90/100). Excellent weldability by MAG, TIG, resistance and laser with ER70S-type filler; CEV ≤ ~0.40 so preheat only for heavy walls or low ambient temperature.
What surface finishes work on E275?
No anodizing — protect by zinc electroplating, hot-dip galvanizing, phosphate + oil, or e-coat/paint; hard chrome plating is standard for cylinder-tube bores.
Can E275 be formed, bent or molded?
Bend, flare and expand in +A or +N; +C tube work-hardens and cracks in tight bends, so specify +SR/+LC when forming after drawing.
What is the maximum service temperature of E275?
E275 is rated for continuous use to about 350°C (662 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does E275 cost?
E275 is a budget-cost steel ($), 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 10305-1/-2 Steel tubes for precision applications — technical delivery conditions — CEN (2016)
- EN 10297-1 Seamless circular steel tubes for mechanical and general engineering purposes — CEN (2003)
- EN 10027-2 Designation systems for steels — numerical system (1.0225) — CEN (2015)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- Machinery's Handbook, 31st ed. — Industrial Press (2020)
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.