90 degree elbow

90 Degree Elbow

Forged 90 Degree Elbows are typically manufactured according to ASME B16.11, ensuring high strength, reliable pressure performance, and suitability for high-temperature or high-pressure services.

  • Types: Socket Weld (SW) 90° Elbow, Threaded (NPT) 90° Elbow
  • Pressure Ratings: Class 2000 / 3000 / 6000 / 9000
  • Materials: Carbon Steel, Stainless Steel, Alloy Steel, Nickel Alloys / CRA
  • Standards: ASME B16.11

Forged 90° elbows are typically manufactured according to ASME B16.11, ensuring high strength, reliable pressure performance, and suitability for high-temperature or high-pressure services.

Types of 90 Degree Elbows

Forged 90° Elbows are available in:

  • Socket Weld (SW) 90° Elbow
  • Threaded (NPT) 90° Elbow
  • Pressure Ratings: Class 2000 / 3000 / 6000 / 9000
types of 90 degree elbows

ASME B16.11 90 Degree Elbows Dimensions

ASME B16.20 Type RX ring gaskets are pressure-energized RTJ (Ring Type Joint) gaskets designed for API 6B flanges. They look similar to Type R but include a built-in pressure-energizing feature, providing better sealing performance at higher pressures.

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GENERAL NOTE: Tolerances:

  • 23 deg = angle, ±0 deg, 30 min (±1 /2 deg)
  • A = width of ring, +0.20 mm, −0.00 mm (+0.008 in., −0 in.)
  • Variation in width throughout the entire circumference of any ring shall not exceed 0.10 mm (0.004 in.) within these tolerances.
  • C = width of flat, +0.15 mm, −0.00 mm (+0.006 in., −0 in.)
  • D = height of outside bevel, +0.0 mm, −0.76 mm (+0 in., −0.030 in.)
  • E = hole size, ±0.5 mm (±0.02 in.)
  • H = height of ring, +0.20 mm, −0.00 mm (+0.008 in., −0 in.)
  • Variation in height throughout the entire circumference of any ring shall not exceed 0.10 mm (0.004 in.) within these tolerances.
  • O.D. = outside diameter of ring, +0.51 mm, −0.00 mm (+0.020 in., −0 in.)
  • R1 = radius of ring, ±0.5 mm (±0.02 in.)

NOTES:

  1. Rings RX-82 throughRX-91 require only one pressure passage hole as illustrated. The centerline ofthe hole shall be located atthe midpoint of dimension C.
  2. Tolerance on these dimensions is +0.5 mm, −0.0 mm (+0.02 in., −0 in.).
  3. Tolerance on these dimensions is +0.00 mm, −0.38 mm (+0 in., −0.015 in.).

Pipe Size,NPS,by API 6B Pressure Class

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NOTES:

  1. Class 720, 960, and 2900 flanges to API 6B are obsolete. Data are for information only.
  2. Crossover flange connection.

Materials Used for 90° Elbows

Forged elbows can be supplied in various materials depending on the application:

Application

Forged 90° elbows are widely used in:

  • Oil & Gas
  • Petrochemical
  • Power Generation
  • Refining
  • Marine and Offshore Systems
  • High-pressure piping
  • Skid-mounted systems and process packages
Refinery & Petrochemical

Why Choose MillsForge for ASME B16.11 90 Degree Elbows?

MillsForge delivers high-performance ASME B16.11 forged 90° elbows, engineered for reliable flow direction change in high-pressure piping systems. Manufactured under ISO 9001:2005 quality control, our forged elbows provide exceptional strength, leak-tight integrity, and long-term durability for demanding industrial applications.

What We Offer

  • Fully compliant ASME B16.11 forged fittings
    Precision-forged 90° elbows available in Socket Weld (SW) and Threaded (NPT) types.

  • High-strength forged construction
    Ideal for high-pressure, high-temperature, and critical service piping.

  • Wide range of materials
    Carbon steel (A105 / A105N), low-temperature steel (A350 LF2), stainless steel (F304 / F316), and special alloys for corrosive or sour-service environments.

  • Strict dimensional and hardness control
    Each fitting is machined to precise tolerances for perfect fit-up and consistent performance.

  • Fast delivery & global supply capability
    Reliable stock availability and international shipment support.

 

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