The technical delivery conditions specified by EN 10297 apply to non-alloy as well as alloy steels seamless circular tubes. The tubes produced under standard EN 10297-1 are intended for use in both mechanical and general engineering applications. Like most English standards, the steels used in standard EN 10297 are designated on the basis of product application, or delivery condition. The designations of the steel grade for an EN 10297 Tube also makes a mention of its minimum yield strength. In the case of pipes belonging to grade en 10297-1 e355+ar, the letter E is a designation for steels applied in the manufacture of machine parts. And the term AR indicates that there is not heat treatment required for that particular steel grade. For instance, the minimum yield strength of bs en 10297-1 grade e355 is 355 N/mm2.

This standard calls for use of deoxidized or killed steel grades for the manufacture of E355 Steel Tubes. The outside diameter includes tolerance of the Out of roundness, whereas the eccentricity is included in the en 10297-1 tolerance on thickness. The delivery of these tubes is to be in square cut ended, and the ends are required to be free from excessive burrs. A visual inspection, when performed on the en 10297-1 e470, must be free of both external as well as internal surface defects. The standard permits removal of surface imperfections, via processes such as grinding or machining performed on the en 10297-1 e355 afforded that, after doing so - the tube thickness in the dressed area is not scarcer in comparison to the minimum wall thickness that has been specified.

| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
| max 0.22 | max 0.55 | max 1.60 | 0.03 | 0.035 | – | – | – | – | – |
| Steel grades | CHEMICAL COMPOSITION (LADLE ANALYSIS) | |||||||
| C% | Si% | Mn% max | P% | S% | ||||
| min | max | min | max | min | max | max | Max | |
| E235 | - | 0,17 | - | 0,35 | - | 1,20 | 0,030 | 0,035 |
| E275 | - | 0,21 | - | 0,35 | - | 1,20 | 0,030 | 0,035 |
| E355 | - | 0,22 | - | 0,55 | - | 1,60 | 0,030 | 0,035 |
| C35E | 0,32 | 0,39 | - | 0,40 | 0,50 | 0,80 | 0,035 | 0,035 |
| C45E | 0,42 | 0,50 | - | 0,40 | 0,50 | 0,80 | 0,035 | 0,035 |
EN 10297-1 E355 Material Specification
| Steel grades: | E235, E315, E275, E470, E355 |
| Delivery condition: | Normalized rolled, Hot finished, Normalized |
| Size range: | Outside Dia 70-610mm, WT 4-35mm, according to EN 10297-1:2003 |
| Dimensions and tolerances: | according to EN 10297-1 |
| Marking |
|
| Test: | tensile test, Cast analysis, visual inspection, electromagnetic test |
| Certification: | CPR(2011/305/EU) |
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Chemical Composition Of EN 10297 Tube
| Silicon | Carbon | Manganese | Sulphur | Phosphorous | Molybdenum | Chromium | Nickel | Copper | Others |
| max 0.55 | max 0.22 | max 1.60 | 0.035 | 0.03 | – | – | – | – | – |
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EN 10297-1 E355 Equivalent
| Product | EN | DIN | BS | ASTM | NFA | ASME |
|---|---|---|---|---|---|---|
| 10297-1 Grade 20NiCrMo2-2 | 10297-1 Grade 20NiCrMo2-2 | − | − | − | − | − |
| 10297-1 Grade E235 | 10297-1 Grade E235 | − | − | − | − | − |
| 10297-1 Grade E275 | 10297-1 Grade E275 | − | − | − | − | − |
| 10297-1 Grade E315 | 10297-1 Grade E315 | − | − | − | − | − |
| 10297-1 Grade E355 | 10297-1 Grade E355 | − | − | − | − | − |
| 10297-1 Grade E275K2 | 10297-1 Grade E275K2 | − | − | − | − | − |
| 10297-1 Grade E355K2 | 10297-1 Grade E355K2 | − | − | − | − | − |
| 10297-1 Grade C60E | 10297-1 Grade C60E | DIN 17204 Grade C60 | − | − | ASTM SAE Grade 1060 | − |
| 10297-1 Grade 38Mn6 | 10297-1 Grade 38Mn6 | − | − | − | − | − |
| 10297-1 Grade C22 | 10297-1 Grade C22 | DIN 17204 Grade C22 | NFA A 35-552 Grade XC 25 | ASME SA 519 Grade 1020 | ASTM A519 Grade 1020 | − |
| 10297-1 Grade C35 | 10297-1 Grade C35 | DIN 17204 Grade C35 | NFA A 49-311 Grade TU XC 35 | ASME SA 519 Grade 1035 | ASTM A519 Grade 1035 | − |
| 10297-1 Grade C45 | 10297-1 Grade C45 | DIN 17204 Grade C45 | NFA A35-552 Grade XC 48 H 1 | ASME SA 519 Grade 1045 | ASTM A519 Grade 1045 | − |
| 10297-1 Grade C60 | 10297-1 Grade C60 | − | − | − | − | − |
| 10297-1 Grade 20MnV6 | 10297-1 Grade 20MnV6 | − | − | − | − | − |
| 10297-1 Grade 25CrMo4 | 10297-1 Grade 25CrMo4 | DIN 17200 Grade 25CrMo4 | NFA Grade 25CrMo4 | − | − | − |
| 10297-1 Grade 34CrMo4 | 10297-1 Grade 34CrMo4 | DIN 17204 Grade 34CrMo4 | NFA A35-552 Grade 34 CD 4 | − | ASTM A 519, SAE, A Grade 4135 | − |
| 10297-1 Grade 42CrMo4 | 10297-1 Grade 42CrMo4 | DIN 17204 Grade 42CrMo4 | NFA − Grade 42CrMo4 | − | ASTM A 519, SAE, A Grade 4142 | − |
| 10297-1 Grade C22E | 10297-1 Grade C22E | DIN 17204 Grade Ck22 | − | ASME SA 519 Grade 1025 | ASTM A519 Grade 1025 | − |
| 10297-1 Grade C35E | 10297-1 Grade C35E | DIN 17204 Grade Ck35 | NFA A 35-552 Grade XC 32 | ASME SA 519 Grade 1035 | ASTM A519 Grade 1035 | − |
| 10297-1 Grade C45E | 10297-1 Grade C45E | DIN 17204 Grade Ck45 | − | ASME SA 519 Grade 1045 | ASTM A519 Grade 1045 | − |
| 10297-1 Grade C10E | 10297-1 Grade C10E | DIN 17210 Grade Ck10 | − | ASME SA 519 Grade 1010 | ASTM A519 Grade 1010 | − |
| 10297-1 Grade C15E | 10297-1 Grade C15E | DIN 17210 Grade Ck15 | NFA A 35-552 Grade XC 18 | ASME SA 519 Grade 1016 | ASTM A519 Grade 1016 | − |
| 10297-1 Grade C15R | 10297-1 Grade C15R | DIN 17210 Grade Cm15 | NFA A 35-551 Grade XC 18 | ASME SA 519 Grade 1016 | ASTM A519 Grade 1016 | − |
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EN10297 Seamless Tube Mechanical Properties
| Yield Strength | Elongation A5 min | Tensile Strength | |||
| MPa min | ksi min | Percentage | MPa min | MPa min | ksi min |
| 20 | 490 | – | – | ||
| Pipes type | Delivery condition | Steel grades | Tensile strength Rm MPa | Upper yield limit Re MPa | Elongation A% |
|||||||
| Seamless circular steel tubes for mechanical and general engineering purposes E235, E355, E275, According to PN-EN 10297-1 | For T in mm | For T in mm | 1 | t | ||||||||
| >80 <\=100 | <\=16 | >16 <\=40 | >40 <\=65 | <\= 16 | >16 <\=40 | >40 <\=65 | >65 <\=80 | |||||
| +A lub+N | E235 | 360 | 360 | 360 | 340 | 235 | 215 | 205 | 195 | 340 | 25 | |
| +A lub+N | E275 | 410 | 410 | 410 | 380 | 275 | 255 | 245 | 235 | 380 | 22 | |
| +A lub+N | E355 | 490 | 490 | 410 | 470 | 354 | 345 | 315 | 295 | 470 | 20 | |
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EN 10297-1 E355+ar Pipes Price
| Description | Price List |
| EN 10297 Hot-rolled Seamless Pipe | US $600.00-$650.00 / Ton |
| En 10297-1 Grade 38mn6 Carbon Steel Seamless Tubes | US $750 |
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Tolerance Chart Of Bs EN 10297-2 Material
| Outside Diameter, mm | Tolerance |
| OD≤219.1 | ±1% or ±0.5mm |
| OD>219.1 | ±1% |
Inventory of Carbon Steel 10297-1 Grade C60E
| CS C40 Thin Wall Pipe | 10297-1 Steel Marine Tube |
| 10297-1 E355 Carbon Steel Welded Pipe | Carbon E355 10297 Steel Box Tube |
| Carbon Steel EN 10297-1 C60E clad pipe | E355K2 Carbon Steel Boiler Tube |
| Bs 10297-1 E355 Braided Tube | Carbon Steel C10E Dom Tube |
| EN 10297-1 Gr E355K2 Pipe | Gr E355 Capillary Tube |
| E275K2 ERW Pipe | Steel E355 10297-1 Cylinder Tube |
| Carbon Steel EN 10297-1 C60E Seamless Pipe | E355K2 Carbon Steel Square Tube |
| Bs 10297-1 E355 Hollow Pipe | Carbon Steel C10E Shell And Tube Heat Exchanger |
| EN 10297-1 Gr E355K2 Rectangular Tube | Gr E355 Round Pipe |
| E275K2 Thick Wall Pipe | Steel E355 10297-1 Electropolish Pipe |
| EN 10297-1 Gr C22E SCH40 pipe | Bs 10297-1 E355 Hot Rolled Tube |
| C45E Carbon Steel Polished Pipe | 10297-1 E355+ar Thick Wall Tube |
| EN 10297-1 Gr C22E Welded Pipe | Bs 10297-1 E355 Coil Tube |
| C45E Carbon Steel Decorative Pipe | 10297-1 E355+ar Decorative Tube |
| CS C40 Square Pipe | 10297-1 Steel Exhaust Tube |
| E275K2 schedule 10 pipe | Steel E355 10297-1 Finned Tube Heat Exchangers |
| EN 10297-1 Gr C22E Gas Tube | Bs 10297-1 E355 Hydraulic Tube |
| C45E Carbon Steel flex pipe | 10297-1 E355+ar Grooved Tube |
| Jindal CS C40 Pipe | 10297-1 Steel Heat Exchanger Tube |
| 10297-1 E355 Carbon Steel straight pipe | Carbon E355 10297 Steel Handrail Tube |
| Carbon Steel EN 10297-1 C60E threaded pipe | E355K2 Carbon Steel Hydraulic Cylinder Tube |
| 10297-1 E355 Carbon Steel Polished Pipe | Carbon E355 10297 Steel Elliptical Tube |
| Carbon Steel EN 10297-1 C60E Rectangular Pipe | E355K2 Carbon Steel Flex Tube |
| Bs 10297-1 E355 exhaust pipe | Carbon Steel C10E Fin Tube |
| EN 10297-1 Gr E355K2 schedule 40 pipe | Gr E355 Fuel Tube |
| Bs 10297-1 E355 Welded Pipe | Carbon Steel C10E Hollow Tube |
| EN 10297-1 Gr E355K2 pipe | Gr E355 Instrument Tube |
| E275K2 braided pipe | Steel E355 10297-1 Internally Threaded Tube |
| Bs 10297-1 E355 high pressure pipe | Carbon Steel C10E Micro Tube |
| EN 10297-1 Gr E355K2 jacketed pipe | Gr E355 Needle Tube |
| E275K2 large diameter pipe | Steel E355 10297-1 Oval Tube |
| EN 10297-1 Gr C22E natural gas pipe | Bs 10297-1 E355 Octagonal Tube |
| C45E Carbon Steel oval pipe | 10297-1 E355+ar Ornamental Tube |
| CS C40 ornamental pipe | 10297-1 Steel JIS Pipe |
| 10297-1 E355 Carbon Steel plumbing pipe | Carbon E355 10297 Steel Polished Tube |
| EN 10297-1 Gr C22E corrugated pipe | Bs 10297-1 E355 Large Tube |
| C45E Carbon Steel conduit pipe | 10297-1 E355+ar Large Diameter Tube |
| CS C40 dairy pipe | 10297-1 Steel Mesh Tube |
| 10297-1 E355 Carbon Steel grooved pipe | Carbon E355 10297 Steel Metric Tube |
| Carbon Steel EN 10297-1 C60E hydraulic pipe | E355K2 Carbon Steel Mechanical Tube |
| Carbon Steel EN 10297-1 C60E pipes and tubes | E355K2 Carbon Steel Pitot Tube |
| Bs 10297-1 E355 xxs pipe | Carbon Steel C10E Threaded Tube |
| EN 10297-1 Gr E355K2 Round Tube | Gr E355 Thin Wall Tube |
| Schedule 10 Type Carbon Steel EN 10297-1 C60E Pipe | Schedule 40 Type E355K2 Carbon Steel Pipe |
| Bs 10297-1 E355 Cold Drawn Tube | Carbon Steel C10E Perforated Tube |
| E275K2 U Shaped Tube | Steel E355 10297-1 Spiral Tube |
| EN 10297-1 Gr C22E Welded Tube | Bs 10297-1 E355 Structural Tube |
| C45E Carbon Steel Seamless Round Tubing | 10297-1 E355+ar Welded Tubing |
| CS C40 Polished Tubing | 10297-1 Steel Hypodermic Tubing |
| 10297-1 E355 Carbon Steel Hydraulic Tubing |

