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90 degree steel pipe bends are similar to elbows but bending radius is larger equal to 3D, the common used type is 3D 5D bend. It is usually used in the oil gas industries. We usually provide steel pipe bends elbows in material of alloy steel, carbon steel stainless steel.
Buttwelding Fittings are used in a piping system to change direction function of media, to branch off, reduce pipe size attach auxiliary equipment. They are availbale in multiple types as elbow, tee, cap, reducer, stub end oelt, that produced in cold hot forming based on stainless steel carbon steel material.
Steel Pipe Bends Elbows
Seel pipe bends elbows are used to change direction in piping system. connecting with pipeline for transfering medium such as water, air, oil, gas so on. But there are some differences between them as following.
Process
Seamless steel pipe elbows are produced by hot pressing cold pressing. While the pipe bends are used medium frequency bending in hot cold methods. Whatever hot cold method, it depends on the material.
Angle
For pipe elbows, they have angles of 45 degree, 90 degree 180 degree. While pipe bends are 22.5 degree, 30 degree, 45 degree 90 degree.
Radius
Steel pipe bends have larger radius than elbows. Usually the elbows have two types that long radius (1.5D) short radius (1D). For pipe bends, the bending radius ≥3D.
Cost
It will use more original material for making steel pipe bends due to the larger raidus, that would spend more money on the steel pipes. In addtion that take more space increase the freight in transporation. So steel pipe bend price is expensive than elbow in same size material.
Standard
Steel pipe elbows are manufactured in buttwelding fittings standard of ASME B16.9, but pipe bends are according to pipe standard that ASME B36.10 ASME B36.19.
Tangent
The tangent length of steel pipe bends are 300 - 1500mm for both ends, while elbows do have tangent.
Inspection Package of Carbon Steel Pipe Bend
SEAMLESS 90 & 45 DEGREE BEND 4D 1 1/2" SCH 80 ASTM A53B
We inspect the carbon steel A53 pipe bends before packing, to make customers satisfied after receive these goods.
| Size Range | 1/2" - 48" / DN15 - 1200 |
| Thickness Schedule | SCH 10 - SCH 160, XXS |
| Bending Radius | R≥3D (R= 3D, 4D, 5D, 6D, 7D, 8D, 9D, 10D) |
| Standard | ASME B36.10 / ASME B36.19 / ASME B16.49 |
| Carbon Steel Material | ASTM A106B / A53B, API 5L B / X42 / X46 / X52 / X56 / X60 / X65 / X70, A333 GR 6 |
| Alloy Steel Material | ASTM A335 P11 / P12 / P22 / P 5 / P9 / P91 / P92,15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5 |
| Stainless Steel Material | ASTM A312 TP304/304L/304H, 316/316L, 310S, 317, 347, 904L |
Steel Pipe Bend Radius Drawing Dimensions
| Bend Radius | R≥3OD(OD is outside diameter of pipe) |
| Bend Angle | According to the specification of design documentation. |
| Tangent Length | Per standard specified length in the design documentation, both straight lengths are 500mm. |
| Outside Diameter | OD≤1200mm |
| Wall Thickness | According to the specification of design documentation. |
| Bevel at Ends | According to the bevel ends of BW fiftings per specification of design documentation. |
3D Bend 90 Degree Weight Chart in KG
BENDS
Bend radius: R=3D R=5D R=7D R=10D as the clients’ requests;
Material:
Carbon Steel: ASTM/ASME A234 WPB/WPC; A420 WPL6; ASTM A860 WPHY42/52 /60/65/70/75, ST37.0, ST35.8, ST45.8, 10CRMo910, 15CrMo, 12Cr1MoV,etc;
Alloy Steel: A234 WP1/WP2/WP5/WP9/WP11/WP12/WP22/WP91, etc;
Stainless Steel: A403 WP304/304L; WP316/316L/316H;WP347H，etc.
Wall Thickness: SCH5S~XXS
Standard:
ASME B16.9, ASME B16.28, ASME B16.25-2007; ASME B16.49
GOST 17375 / 17376 / 17378 / 17379;
DIN 2605 / 2615 /2616 /2617 ;
EN 10253-1-1991,EN 10253-2-2007;
JIS B 2311,JIS B 2312,JIS B 2313-2009;
MSS SP 75-2008,MSS SP 43-2008
Usage： Petroleum, chemical, power plant, etc
Surface: black painting ,anti rust oil ,galvanized etc.
Packing :wooden cases ,pallets ,knit bags ,naked packing .
