ASTM B366 Alloy 20 Buttweld Long & Short Radius 45°, 90°, 180° Elbow, Equal & Unequal Tee Pipe Fittings : ASME/ANSI B16.9, B16.28, MSS-SP-43

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Alloy 20 BW Long & Short Stub End Specifications

Dimensions:
ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10.
Size:
1/2"NB TO 48"NB IN.
Type:
Seamless and Welded.
Thickness:
Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS.
Form:
Elbow, Equal Tee, U Pipe Bend, Long & Short Stub End, Caps, Lap Joint Stub End
ASTM Standard / Grades:
ASTM B366 / ASME SB366 Alloy 20

Certified ISO Manufacturer of Alloy 20 Buttweld Piggable Bend, End Cap, U Bend, Lap Joint Stub End, Equal & Unequal Tee - Seamless 1/2″～24″ Inch and ERW, Welded, Fabricated 1/2″～48″Inch.

Alloy 20, known commercially as Carpenter 20, stands out among stainless steels for its exceptional resistance to corrosive environments, especially sulfuric acid and other acidic compounds. Composed primarily of nickel, chromium, molybdenum, and copper, this alloy exhibits a robust chemical composition that ensures longevity and reliability in aggressive settings.

Alloy 20 typically comprises 32-38% nickel, 19-21% chromium, and 2-3% molybdenum, with additional copper content of 3-4%. This unique blend provides Alloy 20 with outstanding resistance to corrosion from a variety of acids, including sulfuric, phosphoric, and nitric acids, as well as environments containing chloride ions. Its mechanical properties include excellent strength and toughness across a wide temperature range, making it a versatile choice for demanding applications.

Alloy 20 buttweld fittings play a vital role in these industries, offering seamless integration and durable performance. Available in a range of sizes from 1/2" to 24" (DN15-DN600), these fittings cater to various piping requirements. The types of buttweld fittings include elbows, tees, reducers, caps, and stub ends, each designed to meet specific needs within a piping system. These fittings are manufactured to ASTM B366 standards for nickel alloys and comply with ASME B16.9 for precise dimensions and tolerances. The fittings are typically supplied in pickled, passivated, or polished finishes to enhance corrosion resistance and aesthetic appeal.

Its superior corrosion resistance makes Alloy 20 well-suited for applications across diverse industries. Common uses include chemical processing, pharmaceutical production, food handling, and storage facilities where acids are prevalent. The alloy's ability to withstand aggressive environments ensures reliability and safety in critical operational conditions.