EN 10253-2 type B P355NH ELBOW 3D DIN 2605-1 type B ELBOW
We are the professional manufacturer of butt weld fittings to BS EN 10253-2:2007, these seamless fittings are all made of P265GH ,P355NH carbon steel to BS EN 10216-2 and were previously known as BS 1965 welding fittings. All of our EN 10253-2 butt weld fittings are “Type B” meaning they’re suitable for use at full service pressure.
BS EN 10253‑2 specifies the type of fittings, type A: Butt-welding fittings with reduced pressure factor, type B: Butt-welding fittings for use at full-service pressure, steel grades and their chemical compositions, mechanical properties, dimensions and tolerances, requirements for inspection, and testing, inspection documents, marking, protection and packaging.
DIN 2605-1 refers to DIN 2605 Part 1,which is a standard specifies seamless and welded steel elbows and bends that are intended to be butt welded to pipes
DIN 2605-1 has been WITHDRAWN and replaced by BS EN 10253
MTC 3.1 test certification is available for all of our welding fittings.
EN 10253-2 Butt weld Pipe Elbows Specification
P355NH is a high-temperature pressure vessel steel grade that is commonly used in applications such as petrochemical plants, power plants, and industrial boilers. It is a weld able, fine-grain steel grade that offers good mechanical properties and excellent weld ability, making it ideal for use in demanding environments.
| EN 10253 Elbow Specification | EN 10253/2 Type A – reduced load factor EN 10253/2 Type B – full load factor |
| According EN 10222-4 chemical composition: C < 0.2; 0.1 < Si < 0.5; 0.9 < Mn < 1.65; Ni < 0.3; 0.02 < Al < 0.06 |
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | – |
| max 0.18 | max 0.5 | 1.1 – 1.7 | max 0.5 | max 0.025 | max 0.015 | max 0.3 | max 0.08 | max 0.1 | max 0.012 | max 0.05 | max 0.03 | max 0.02 | max 0.3 | Nb+Ti+V < 0.12 |
| Nominal thickness (mm): | to 60 | 60 – 100 | 100 – 150 | 150 – 250 |
| Rm – Tensile strength (MPa) (+N) | 490-630 | 470-610 | 460-600 | 450-590 |
| Nominal thickness (mm): | to 16 | 16 – 40 | 40 – 60 | 60 – 100 | 100 – 150 | 150 – 250 |
| ReH – Minimum yield strength (MPa) (+N) | 355 | 345 | 335 | 315 | 305 | 295 |
| KV – Impact energy (J) transverse, (+N) | -20° 27-30 |
0° 35-40 |
+20° 39-50 |
| KV – Impact energy (J) longitud., | -20° 40-45 |
0° 47-65 |
+20° 55-75 |
| Nominal thickness (mm): | to 60 | 60 – 250 |
| A – Min. elongation at fracture (%) (+N) | 22 | 21 |
EN 10253-2 Butt weld Pipe Elbows Dimensions
| EN 10253-1, Bauart 3, 90° | ||||
| DN | D | T | F | B |
| 15 | 21,3 | 2,0 | 29 | 38 |
| 20 | 26,9 | 2,3 | 29 | 43 |
| 25 | 33,7 | 2,6 | 38 | 56 |
| 32 | 42,4 | 2,6 | 48 | 70 |
| 40 | 48,3 | 2,6 | 57 | 83 |
| 50 | 60,3 | 2,9 | 76 | 106 |
| 65 | 76,1 | 2,9 | 95 | 132 |
| 80 | 88,9 | 3,2 | 114 | 159 |
| 100 | 114,3 | 3,6 | 152 | 210 |
| 125 | 139,7 | 4,0 | 190 | 262 |
| 150 | 168,3 | 4,5 | 229 | 313 |
| 200 | 219,1 | 6,3 | 305 | 414 |
| 250 | 273,0 | 6,3 | 381 | 518 |
| 300 | 323,9 | 7,1 | 457 | 619 |
