Views: 1 Author: Site Editor Publish Time: 2025-06-10 Origin: Site
Stainless steel 90 degree elbow is a common pipe connector used to change the direction of fluid delivery and achieve a 90 degree turn. It is made of high-quality stainless steel (such as 304, 316, etc.), with corrosion resistance, high pressure resistance, high temperature resistance and good mechanical properties, suitable for chemical, petroleum, food, pharmaceutical and other industries.
This stainless steel product is often used in installations where the direction of a pipeline needs to be changed. The raw material of the seamless stainless steel elbow makes it very easy to weld. The product is available in a wide range of diameters and is made of high-quality steel. Due to these characteristics, elbows are widely used in joints for the transmission of liquids, gases and other inert media.
Shanghai Zhucheng Pipe Fittings Manufacturing Co Ltd.provides stainless steel elbows in various styles and sizes. The elbow size ranges from 1/2 inch to 80 inches, and the wall thickness covers SCH 10, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS, all in accordance with ASME B16.9 standards.
Size Range | 1/2"- 80" / DN15 - 2000 |
Thickness Schedule | SCH 10, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS |
Standard | ANSI / ASME B16.9 |
Stainless Steel Grades | ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L |
Strong corrosion resistance: Stainless steel itself has excellent corrosion resistance and can resist corrosion from a variety of acids, alkalis, salts and chemicals, which makes 90 degree elbows perform well in corrosive media environments such as chemicals, food, and pharmaceuticals.
High strength: Stainless steel elbows have good mechanical strength and toughness, can withstand high pressure and temperature, and are suitable for high-pressure and high-temperature pipeline systems.
Various connection methods: 90 degree elbows can be connected to pipelines in a variety of ways, including butt welding, socket welding, and threaded connections to meet different installation requirements and system pressure levels.
Various sizes and standards: They follow various international standards, such as ASME B16.9 (butt welding fittings), ASME B16.11 (socket welding and threaded fittings), MSS SP-43, JIS, EN, etc., to ensure the interchangeability and versatility of the products.
CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | Mo |
ASTM A403 WP304 | MIN | 8.0 | 18.0 | ||||||
MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.0 | 20.0 | ||
ASTM A403 WP304L | MIN | 8.00 | 18.00 | ||||||
MAX | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 12.00 | 20.00 | ||
ASTM A403 WP316 | MIN | 10.0 | 16.0 | 2.00 | |||||
MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 14.0 | 18.0 | 3.00 | |
ASTM A403 WP316L | MIN | 10.00 | 16.00 | ||||||
MAX | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 14.00 | 18.00 |
MATERIAL | ASTM A403 WP304 | ASTM A403 WP304L | ASTM A403 WP316 | ASTM A403 WP316L |
T.S (MPA) | 515 min | 485 min | 515 min | 485 min |
Y.S (MPA) | 205 min | 170 min | 205 min | 170 min |
EL % | 28 min | 28 min | 28 min | 28 min |
90 stainless steel elbow size is determined by the diameter and wall thickness of the pipe. Here are some common size parameters:
Diameter (D): The diameter of the 90 stainless steel elbow refers to the outer diameter of the pipe. Common diameters range from 1/2 inch to 48 inches.
Wall thickness (T): Wall thickness refers to the thickness of the pipe wall. Different application scenarios require different wall thicknesses, and common wall thicknesses range from SCH5 to SCH160.
Bend radius (R): The bend radius refers to the curve radius of the 90 stainless steel elbow. Generally, the choice of bend radius depends on the diameter and wall thickness of the pipe. Smaller diameters and larger wall thicknesses usually require smaller bend radii.
Bend angle (A): The bend angle of the 90 stainless steel elbow is fixed at 90 degrees.
DN | NPS | OD | A | |
LR | SR | |||
15 | 1/2 | 21.3 | 38 | 25 |
20 | 3/4 | 26.7 | 38 | 25 |
25 | 1 | 33.4 | 38 | 25 |
32 | 1 1/4 | 42.2 | 48 | 32 |
40 | 1 1/2 | 48.3 | 57 | 38 |
50 | 2 | 60.3 | 76 | 51 |
65 | 2 1/2 | 73 | 95 | 64 |
80 | 3 | 88.9 | 114 | 76 |
90 | 3 1/2 | 101.6 | 133 | 89 |
100 | 4 | 114.3 | 152 | 102 |
125 | 5 | 141.3 | 190 | 127 |
150 | 6 | 168.3 | 229 | 152 |
200 | 8 | 219.1 | 305 | 203 |
250 | 10 | 273 | 381 | 254 |
300 | 12 | 323.8 | 457 | 305 |
350 | 14 | 355.6 | 533 | 356 |
550 | 22 | 559 | 838 | 559 |
600 | 24 | 610 | 914 | 610 |
650 | 26 | 660 | 991 | 660 |
700 | 28 | 711 | 1067 | 711 |
750 | 30 | 762 | 1143 | 762 |
800 | 32 | 813 | 1219 | 813 |
850 | 34 | 864 | 1295 | 864 |
900 | 36 | 914 | 1372 | 914 |
950 | 38 | 965 | 1447 | 965 |
1000 | 40 | 1016 | 1524 | 1016 |
1050 | 42 | 1067 | 1600 | 1067 |
1100 | 44 | 1118 | 1676 | 1118 |
1150 | 46 | 1168 | 1753 | 1168 |
1200 | 48 | 1219 | 1829 | 1219 |
1300 | 52 | 1321 | 1981 | 1321 |
1400 | 56 | 1422 | 2134 | 1422 |
1500 | 60 | 1524 | 2286 | 1524 |
1600 | 64 | 1626 | 2438 | 1626 |
1700 | 68 | 1727 | 2591 | 1727 |
1800 | 72 | 1829 | 2743 | 1829 |
1900 | 76 | 1930 | 2896 | 1930 |
2000 | 80 | 2032 | 3048 | 2032 |
Nominal Size | All Fittings | 45°&90° Elbows |
| ||||
DN | NPS | OD 3) 4) | ID 3) | A B C M |
| K | U |
15-65 | 1/2 -21/2 | +1.6 | ± 0.8 | ± 2 | ± 6 | ± 6 | ± 1 |
80-90 | 3-31/2 | ± 1.6 | ± 1.6 | ± 2 | ± 6 | ± 6 | ± 1 |
100 | 4 | ± 1.6 | ± 1.6 | ± 2 | ± 6 | ± 6 | ± 1 |
125-200 | 5-8 | +2.4 | ± 1.6 | ± 2 | ± 6 | ± 6 | ± 1 |
250-450 | 10-18 | +4.0 | ± 3.2 | ± 2 | ± 10 | ± 6 | ± 2 |
500-600 | 20-24 | +6.4 | ± 4.8 | ± 2 | ± 10 | ± 6 | ± 2 |
650-750 | 26-30 | +6.4 | ± 4.8 | ± 3 | --- | --- | --- |
800-1200 | 32-48 | +6.4 | ± 4.8 | ± 5 | --- | --- | --- |
1300-1500 | 52-60 | +6.4 | ± 4.8 | ± 5 | --- | --- | --- |
1600-1700 | 64-68 | +6.4 | ± 4.8 | ± 5 | --- | --- | --- |
1800-2000 | 72-80 | +6.4 | ± 4.8 | ± 5 | --- | --- | --- |
Weight formula = 0.0387 * S( D – S ) * 1.5D / 1000
W = Weight (kg/piece).
S = Thickness Schedule.
D = Nominal Diameter.
1. Outside Diameter (OD)
Measure the outside diameter at both ends of the elbow.
Check whether it falls within the specified tolerance range.
2. Wall Thickness (WT)
Measure the wall thickness of the elbow, especially at the thinnest point in the bend area.
Verify if it meets the standard thickness requirements (e.g., SCH40, SCH80).
Tools: Ultrasonic thickness gauge, micrometer.
3. Center-to-End Distance (A or H)
For Long Radius (LR) elbows: A = 1.5 × Nominal Diameter (DN)
For Short Radius (SR) elbows: A = 1 × DN
Measure the actual distance from the centerline to the pipe end, and check whether it conforms to the theoretical values and standard specifications.
1. Individual Packaging
Small elbows can be wrapped in plastic bags and then placed into cartons.
2. Bulk Packaging
Multiple elbows are wrapped in plastic bags and then packed together in wooden crates or woven bags.
Foam, bubble wrap, or other cushioning materials are used to fill gaps and prevent damage from collision during transportation.
3. Pallet Packaging (for Export)
Packed using standard export pallets (e.g., fumigation-free wooden pallets), suitable for container shipment.
Secured with packing straps and wrapped with plastic film to prevent moisture.
Oil and gas industry: 90 stainless steel elbows are used to connect oil and gas pipeline systems,under high pressure and high temperature conditions.
Chemical industry: In the chemical industry, 90 stainless steel elbows are used to connect chemical delivery pipelines, with corrosion resistance and high temperature resistance.
Food and pharmaceutical industry: 90 stainless steel elbows are used in the food and pharmaceutical industries to connect pipelines for transporting food and medicines, requiring materials to be non-toxic, odorless and easy to clean.
Construction engineering: In construction engineering, 90 stainless steel elbows are used to connect pipes for water supply, drainage and HVAC systems.
Sewage treatment: 90 stainless steel elbows are used to connect the pipeline system of sewage treatment plants, with corrosion resistance and durability.
