Size Selection
1/2" - 2"Small Bore (DN 15 - DN 50)
3" - 8"Medium Bore (DN 80 - DN 200)
10" - 24"Large Bore Seamless (DN 250 - DN 600)
26" - 48"Heavy Welded Fabricated (DN 650 - DN 1200)
Product page
SKYLAND
ASME B16.9 Buttweld 90° Elbow (Long & Short Radius)
Skyland ASME B16.9 90° Buttweld Elbows are the industry standard for directional pipeline changes in oil & gas, petrochemical, power generation, and water processing facilities. Built to withstand extreme internal pressure, vibration, and thermal expansion, these elbows feature beveled ends per ASME B16.25 for full-penetration butt-welding.
Standard compliance: ASME / ANSI B16.9, BS 1640, DIN 2605, EN 10253-2, MSS SP-75
Available in Long Radius (LR, R=1.5D) and Short Radius (SR, R=1.0D) configurations
Size range: 1/2" to 48" NB (Seamless up to 24", Welded 8" to 48" with 100% X-Ray)
Wall thickness: Sch 5S, 10S, 20, 40S, STD, 80S, XS, 100, 120, 140, 160, XXS
Ready for quotationShare your range, connection and case requirement.
Talk to ATHStandardASME / ANSI B16.9, DIN 2605, EN 10253, MSS SP-75, BS 1640
Radius TypesLong Radius (LR = 1.5D) & Short Radius (SR = 1.0D)
Sizes Available1/2" to 48" (DN 15 to DN 1200)
SchedulesSch 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS
Material GradesASTM A234 WPB, A420 WPL6, A403 WP304L/316L, A860 WPHY 52/60/65
Quality StandardsPED 2014/68/EU, ISO 9001, EN 10204 3.1 MTC, NACE MR0175
Engineering Reference
ASME B16.9 90° Elbow Selection Matrix
Identify exact size, radius, wall schedule, and material class for your 90° elbow requirements.
StandardASME B16.9
Angles90° LR & SR
Sizes1/2" to 48"
PressureMatching Pipe
Material Grades
A234-WPBCarbon Steel ASTM A234 Gr. WPB
A420-WPL6Low Temp Carbon Steel A420 WPL6
A403-WP316LStainless Steel ASTM A403 WP316L
WPHY-52/65High Yield Pipeline Carbon Steel
Part Number Example
SKL-90E-060-SCH80-WPB-LR
SKLBrandSkyland Metal & Alloys
90EType90° Buttweld Elbow
060Size6" NPS (DN 150)
SCH80WallSchedule 80 (Extra Strong)
WPBMaterialASTM A234 Grade WPB
LRRadiusLong Radius 1.5D
Technical specifications
Design StandardASME B16.9 / BS 1640 / DIN 2605
Weld End SpecASME B16.25 Beveled Ends
Quality CertificationISO 9001:2015, PED 2014/68/EU, EN 10204 3.1
Inspection AuthorityThird party inspection by TUV, BV, DNV, Lloyds
Operational & Design Notes
Long radius 90° elbows are recommended for general process piping to minimize pressure loss.
Short radius 90° elbows are ideal for compact marine engine rooms and modular skid packaging.
Available with hot-dip galvanized or fusion bonded epoxy (FBE) external coatings upon request.
Engineering & Performance Features
The ASME B16.9 90-degree buttweld elbow is the most widely utilized fitting in industrial piping. The Long Radius (1.5D) design reduces fluid frictional resistance and pressure drop, while the Short Radius (1.0D) design provides optimal compact routing in tight plant spaces and equipment skids.
Produced from premium seamless pipe billets or hot-pressed welded plate with 100% radiography on all weld joints. Each fitting is solution-annealed or normalized to ensure maximum mechanical strength and corrosion resistance.
Dimension & Weight Specifications
Center-to-End (LR)1.5 x NPS (e.g., 2" LR = 3.00" / 76.2 mm; 6" LR = 9.00" / 228.6 mm; 12" LR = 18.00" / 457.2 mm)
Center-to-End (SR)1.0 x NPS (e.g., 2" SR = 2.00" / 50.8 mm; 6" SR = 6.00" / 152.4 mm; 12" SR = 12.00" / 304.8 mm)
Bevel PreparationASME B16.25 standard weld bevel with 37.5° angle and 1.6 mm root face
Testing ReportsTensile, Yield, Elongation, Charpy V-Notch Impact at -50°F (WPL6), Hardness test