Nickel Alloy Pipe, Valves, Fittings & Flanges
Incoloy®, Alloy 20®, Monel® 400, Inconel®, Nickel 200, Nickel 201
U.S. Metals is a premier worldwide supplier for Nickel Alloy Welded Pipe, Seamless Pipe, Forged Valves, Forged Fittings, Flanges, Tubes, Cast Valves.
Our ability to provide Nickel Alloy products on a project basis is one of our strongest capabilities and is unmatched in our industry.
Turnarounds or outages, planned retrofits or emergency situations, grassroots projects worldwide; U.S. Metals has the experienced staff to assist you on all of your specialty alloy requirements, no matter how detailed the specification, no matter how difficult the situation.
New industry requirements, not an issue. We work closely with agencies like EPRI along with our utility and refining clients to be on the cutting edge of new industry requirements that affect your high energy/high temperature piping systems.
Our inventory is evolving to meet the new specifications that prevent current issues as creep cracking and hardness problems.
Trade Name UNS #N08020
Welded Pipe /
B/SB160 BARB/SB160 BARB/SB564B/SB564B/SB564B/SB564B/SB564B/SB564B/SB564
* The Following must be included with the ASTM designation and graded for the description to be complete:
WP (S) = Seamless
WP (W) = Welded
WP (WX) = Welded with 100% x-ray
WP (U) = Welded with 100% Ultrasonic examination
CR = Corrosion resistant in acordance with MSS SP-43
Most Nickel/Nickel Alloy Specifications especially in pipe and tube refer only to the UNS number for material identification. Classes and Grades are occasionally used to identify options for items such as NDT, heat treatment or different methods employed when welding with filler metal such as single welded or double welded. These options do not result in an additional UNS number in the nickel materials.
Grades/Classes/Identification Symbols are shown in this table only when they are used for material identification. Buttweld Fittings under B/SB366 have the same suffix class marking requirements (S,W, WX,WU and CR) as A/SA403.
This table does not list specialty items. ASTM Specification B834 covers pressure consolidated powder metallurgy for UNS NO6625 (Inconel 625) flanges, fittings and valves. Specification A990 lists Monel M35-1 with modified S and added Cb. A990 Grade CN3MCu specifies Alloy 20 grade CN7M Nickel and Chrome contents with modified C, Si, P, S and Cu chemical requirements.
Specification B/SB564 permits manufacture of all the grades listed above except for Nickel 201 and Alloy 20.
Refer to U.S. Metals' Nickel Alloy Forged Fittings web page for more details.
Data in this table (except for Valve Castings) was taken from the 2013 editions, Section One Volume 01.01 and Section Two Volume 02.04, of the annual book of ASTM Standards. Casting Specification Data was from Volume 01.02, same edition.
Refer to ASME B & PV Code Section ii parts A and B for non-identical ASTM and ASME requirements.