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1 Scope
1.1 This part of EN 10253 specifies seamless and welded butt welded
joints (elbows, concentric and eccentric reducers, equal diameters
and reducers) made of austenitic and austenitic-ferritic (duplex)
stainless steels. Tee, cap) technical delivery requirements, there
is no specific inspection requirements.
Specification:
| Specification | EN 10253/1 |
| EN 10253/2 Type A – reduced load factor | |
| EN 10253/2 Type B – full load factor | |
| Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Under Third Party Inspection Agency like DNV, LLOYDS, SGS, TUV, ABS ETC / Laboratory Test Certificate From NABL Approved Lab. |
| Delivery Conditions | As Normalized and Tempered - BR / N / Q /T, Machined, Rolled, Thermomechanical Rolled / Formed, Normalizing Rolled |
| Dimension Standard | MSS SP44, ANSI B16.48, ANSI B16.36, ANSI B16.28, ANSI B16.47, ANSI B16.5 |
| Make Process | Rolled, Forged, Machining |
| Types | EN 10253 Elbow |
| 2d Outer Diameter & Wall Thickness Size | 1/2" NB To 60" NB (Nominal Bore Size) |
| Wall Thickness: from 1 mm to 100 mm | |
| Packaging | Plastic End Caps / Bundle / Wooden Box / Loose / Plastic Cloth Wraps / Wooden Pallet / Beveled Protector |
1.2 Limitation of use
The allowable pressure and temperature are the responsibility of
the customer in accordance with the existing technology and the
application of the safety factor in the regulations, codes and
standards. Generally, the joint coefficient is used to calculate
the thickness of a component containing one or more butt welds, not
the circumference:
For random non-destructive testing equipment: 0.85;
For equipment that does not perform non-destructive testing except
for visual inspection: 0.7.
1.3 Unless otherwise specified in this part of EN 10253, the
general technical delivery requirements of EN 10021 apply.
En 10253-2 pipe fittings have certain technical delivery requirements, such as model, marking, steel grade, packaging, size, etc. It is easy for customers to understand the details through the specifications. Bend En 10253-2-2-A type elbow is similar to type A elbow, but the elbow is longer, eliminating the sudden pressure on the wall. DIN En 10253 2 Type B elbows are very short and can withstand a lot of pressure when turning. However, our BS En 10253-2 Type B elbows and other accessories are composed of excellent quality and carefully tested so that our customers can get the best products.
Dimension Chart Of En 10253-2 Type A Elbow
| 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 |
Application Of En 10253-2 Elbow
