EN10025 S275 Q235B Steel U Channel Structural Steel Beams Tubes For Construction
| Current table represents European standard U (UPN, UNP) channels, UPN steel profile (UPN beam), specifications, properties, dimensions. Manufactured according to standards : | |||||||||
| DIN 1026-1: 2000, NF A 45-202: 1986 EN 10279: 2000 (Tolerances) EN 10163-3: 2004, class C, subclass 1 (Surface condition) STN 42 5550 CTN 42 5550 TDP: STN 42 0135 | |||||||||
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| Identification | Nominal weight 1m | Nominal dimensions | Cross-section | Dimensions for detailing | |||||
| UNP | | b | h | s | t=R1 | R2 | e | A | d |
| kg/m | mm | cm2 | mm | ||||||
| UPN 30 | 4,27 | 33 | 30 | 5,0 | 7,0 | 3,5 | - | 5,4 | - |
| UPN 40x20 | 2,86 | 20 | 40 | 5,0 | 5,5 | 2,5 | - | 3,7 | - |
| UPN 40 | 4,87 | 35 | 40 | 5,0 | 3,5 | 7,0 | - | 6,2 | - |
| UPN 50 | 5,59 | 38 | 50 | 5,0 | 7,0 | 3,5 | 13,7 | 7,12 | 21 |
| UPN 65 | 7,09 | 42 | 65 | 5,5 | 7,5 | 4,0 | 14,2 | 9,03 | 34 |
| UPN 80 | 8,64 | 45 | 80 | 6,0 | 8,0 | 4,0 | 14,5 | 11,00 | 47 |
| UPN 100 | 10,6 | 50 | 100 | 6,0 | 8,5 | 4,5 | 15,5 | 13,50 | 64 |
| UPN 120 | 13,4 | 55 | 120 | 7,0 | 9,0 | 4,5 | 16 | 17,00 | 82 |
| UPN 140 | 16,0 | 60 | 140 | 7,0 | 10,0 | 5,0 | 17,5 | 20,40 | 98 |
| UPN 160 | 18,8 | 65 | 160 | 7,5 | 10,5 | 5,5 | 18,4 | 24,00 | 115 |
| UPN 180 | 22,0 | 70 | 180 | 8,0 | 11,0 | 5,5 | 19,2 | 28,00 | 133 |
| UPN 200 | 25,3 | 75 | 200 | 8,5 | 11,5 | 6,0 | 20,1 | 32,20 | 151 |
| UPN 220 | 29,4 | 80 | 220 | 9,0 | 12,5 | 6,5 | 21,4 | 37,40 | 167 |
| UPN 240 | 33,2 | 85 | 240 | 9,5 | 13,0 | 6,5 | 22,3 | 42,30 | 184 |
| UPN 260 | 37,9 | 90 | 260 | 10,0 | 14,0 | 7,0 | 23,6 | 48,30 | 200 |
| UPN 280 | 41,8 | 95 | 280 | 10,0 | 15,0 | 7,5 | 25,3 | 53,30 | 216 |
| UPN 300 | 46,2 | 100 | 300 | 10,0 | 16,0 | 8,0 | 27,0 | 58,80 | 232 |
| UPN 320 | 59,5 | 100 | 320 | 14,0 | 17,5 | 8,8 | - | 75,80 | 246 |
| UPN 350 | 60,6 | 100 | 350 | 14,0 | 16,0 | 8,0 | - | 77,30 | 282 |
| UPN 380 | 63,1 | 102 | 380 | 13,5 | 16,0 | 8,0 | - | 80,40 | 313 |
| UPN 400 | 71,8 | 110 | 400 | 14,0 | 18,0 | 9,0 | - | 91,50 | 324 |
EN10025 S275 Q235B channel steel is a type of structural steel commonly used in construction as a support for buildings, bridges, and other structures. In this article, we will provide information on the material, specification, chemical composition, mechanical properties, steel grade, and application of EN10025 S275 Q235B channel steel.
Material
EN10025 S275 Q235B channel steel is made from a combination of two different types of steel:
- EN10025 S275: A European standard for hot-rolled structural steel
- Q235B: A Chinese standard for carbon structural steel
Specification
EN10025 S275 Q235B channel steel has the following specifications:
- Dimensions: 50mm-400mm (width) x 100mm-900mm (height) x 6mm-16mm (thickness)
- Length: 6m-12m
- Standard: GB/T 706-2008, JIS G3101, ASTM A36, EN 10025-2
Chemical Composition
The chemical composition of EN10025 S275 Q235B channel steel is as follows:
| Element | Percentage |
|---|---|
| Carbon | 0.17% - 0.22% |
| Manganese | 1.4% - 1.5% |
| Phosphorus | 0.045% max |
| Sulfur | 0.045% max |
| Silicon | 0.35% max |
Mechanical Properties
The mechanical properties of EN10025 S275 Q235B channel steel are as follows:
| Property | Value |
|---|---|
| Yield Strength | 235MPa (Q235B), 275MPa (S275) |
| Tensile Strength | 370-500MPa |
| Elongation | 26% |
| Impact Strength | 27J (Q235B), 20°C (S275) |
Steel Grade
EN10025 S275 Q235B channel steel has the following steel grades:
- Q235B (Chinese standard)
- S275 (European standard)
Application
EN10025 S275 Q235B channel steel is commonly used in the following applications:
- Construction of buildings, bridges, and other structures
- Industrial machinery and equipment
- Transportation equipment


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