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In pipeline engineering, the sizes of piping components are designated by two systems: NPS and DN. NPS is referred to as nominal pipe size which is the US customary system while DN is referred to as nominal diameter which is …

In order to obtain optimum weld metal in term of chemical composition and mechanical properties, the welding process and weld consumables(wire, rod, flux, electrode, etc) for T91/ P91 steel shall be carefully selected. It is very difficult to find a …

T91/ P91 steel manufactured to ASTM A335 P91 or ASTM A213 T91 is a typical tempered martensite in term of microstructure. They can be welded by many common welding methods including SMAW, SAW, GSAW(TIG/MIG), and FCAW, etc. Metals-Piping not only …

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger. It is also an 9Cr-1Mo-V alloy steel with UNS designation K90901. Compared to its equivalent ASTM A335 P91, the chemical composition requirement of T91 steel is …

P91 is one of the steel grades specified by ASTM A335, the standard specification for seamless ferritic alloy steel pipe for high-temperature service. The maximum allowable stress in different temperature ranges shall be determined by ASME B31.1 and ASME B31.3 …

Designated as UNS K91560, the T91/ P91 steel is a 9Cr-1Mo ferritic alloy steel with deliberate addition of vanadium and niobium, as well as controlled nitrogen content. It has outstanding heat-resistance and creep strength. It also has good resistance to …

Seamless steel pipes or tubes manufactured to ASME SA335 P92 or ASME SA213 T92 are widely used in supercritical and ultra-supercritical power plant units. Postweld heat treatment for this material is mandatory. The P92/ T92 steel (UNS K92460, 9Cr-2W) shall …

The P92/ T92 seamless pipes or tubes manufactured to either ASME SA335 or ASME SA213 are widely applied in modern ultra-supercritical power plant units to improve heat efficiency. According to Metals-Piping’s engineering practice, it is most applicable to the steam-temperature …

1. General Tolerances for All Fittings of ASME B16.9 *All dimensions are in mm unit. NPS: Nominal Pipe Size; DN: Nominal Diameter. *O.D: outside diameter at bevel; I.D: inside diameter at end; Both P & Q are angularity tolerances. *A …

The P92 steel, also known as 9Cr-2W, is designated as UNS K92460. It may be used for the construction of ASME BPVC Section I and Section III, Division 1 according Code Case 2179-8. The P92 steel can be furnished in …

1. The Tensile Test Results for ASTM A335 P92 Pipe Bends The mechanical properties of the four pieces of ASTM A335 P92 pipe bends shall be tested and reviewed. It includes tensile strength, yield strength, elongation, as well as the …

1. General Introduction For 600 MW and 1000 MW power plant electric-unit, the P92 alloy steel is widely applied in super-critical main steam line or reheating steam line. It can be furnished in accordance with ASTM A335 P92, ASME SA335 …

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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
    No. 176, Zhonghua South Street, Shijiazhuang, China.
    Tel: +86-311-89642206
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    Email: sales@metalspiping.com