company news about Stainless Steel Butt Weld Fittings Pipe Tube Fittings Three Way Tee Reducing Tee

Stainless Steel Butt Weld Fittings Pipe Tube Fittings Three Way Tee Reducing Tee Ansi / Asme B16.9 Ss 304/304l/316/316l

Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy B-2. In addition, this nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy B-3 also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy B-3’s distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.

Limiting Factors of Hastelloy B-3

Alloy B-3 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of ferric or cupric salts because they may cause rapid premature corrosion failure. These salts may develop when hydrochloric acid comes in contact with iron and copper. Therefore, if this nickel steel alloy is used in conjunction with iron or copper piping in a system containing hydrochloric acid, the presence of these salts could cause the alloy to fail prematurely.

In what forms is Hastelloy B-3 Available at Mega Mex?

· Sheet

· Plate

· Bar

· Pipe (welded & seamless)

· Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)

· Wire

What are the characteristics of Hastelloy B-3?

· Maintains excellent ductility during transient exposures to intermediate temperatures

· Excellent resistance to pitting, corrosion and stress-corrosion cracking

· Excellent resistance to knife-line and heat-affected zone attack

· Excellent resistance to acetic, formic and phosphoric acids and other non-oxidizing media

· Resistance to hydrochloric acid at all concentrations and temperatures

· Thermal stability superior to alloy B-2

Chemical Composition, %

In what applications is Hastelloy B-3 used?

· Chemical processes

· Vacuum furnaces

· Mechanical components in reducing environments

Fabrication with Hastelloy B-3

Problems associated with fabrication of alloy B-2 components should be minimized with alloy B-3 due to its improved thermal stability. A low carbon content permits alloy B-3 to be used in the as-welded condition. Hastelloy B-3 has good overall forming and welding characteristics. This alloy can be forged or otherwise hot-worked, providing that it is held at 2250° F for a sufficient amount of time to bring the entire piece to temperature. Since it is a low carbon alloy, the use of lower hot finishing temperatures may be necessary to achieve grain size control. It may also be formed by cold working. Although it does work-harden somewhat rapidly, B-3 alloy components can be made using all common cold forming techniques. All common welding techniques may be used with alloy B-3, however, oxyacetylene and submerged arc welding processes are not recommended when the fabricated item is to be used in corrosive service.

For more information on fabrication and machining click here.

ASTM Specifications

Mechanical Properties

Annealed Material

Nickel Alloy 90° Elbow Outlet:

ASTM / ASME SB 336 UNS 2200 (Nickel 200), UNS 2201 (Nickel 201), UNS 4400 (Momel 400), UNS 8020 (Alloy 20 / 20 CB 3), UNS 8825 Inconel (825), UNS 6600 (Inconel 600), UNS 6601 (Inconel 601), UNS 6625 (Inconel 625), UNS 10276 (Hastelloy C 276)

Copper Alloy Steel 90° Elbow Outlet:

• ASTM / ASME SB 111 UNS NO.C10100, C10200, C10300, C10800, C12000, C12200, C70600, C71500
• ASTM / ASME SB 466 UNS NO.C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)

Product Details:

• Types: Forged Elbow, Forged Tee, Forged Reducer, Forged Return Bends, Forged Stub-Ends, Forged Cap, Forged Collar, Forged Cross, Forged Insert etc.
• 90° Elbow Outlet Size: 1/2” NB TO 24” NB.

• N6 pure nickel strip (UNS NO2200)

  Nickel 200 (UNS N02200/ w.r.2.4060 and 2.4066)

  Nickel 200 this alloy has the following characteristics:

  It is commercial pure nickel (99.6%).It has good mechanical properties and excellent resistance in many corrosive environments.Other useful features of the alloy include its magnetic properties, magnetostrictive properties, high thermal and electrical conductivity, low gas content and low evaporation pressure.Corrosion resistance makes it particularly useful in applications where purity is required for products such as food, synthetic fibres and caustic soda.It is also widely used in structural applications where corrosion resistance is the main consideration.Other USES include chemical transfer barrels, electrical and electronic components, aerospace and missile components.

  Metallographic structure of nickel 200:

  Nickel 200 is a solid alloy with a face-centered cubic structure.

  High temperature performance:

  Nickel 200 is generally restricted to use at less than 600°F (315°C).The graphitization of nickel 200 products will occur at high temperature, which will seriously degrade the performance of the products.

  Available products and standards:

  Landong can supply N6 nickel strip, N6 nickel sheet, N6 nickel foil, N6 nickel wire, N6 nickel tube, N6 nickel plate, N6 nickel rod, etc.Welcome to inquir

  The corrosion resistance of N4/N6 pure nickel, especially alkali corrosion resistance, is relatively stable in both high temperature and molten alkali, so it is mainly used in alkali making industry.At room temperature, nickel is extremely stable in seawater and salt solutions and in organic media such as fatty acids, phenols, alcohols, etc.It is not resistant to inorganic acids and is unstable in acetic acid and formic acid.

  Pure nickel product specification (MM) :

  Nickel strip: 0.01mm-2.0mm 1.5mm-500mm

  Nickel rod: Φ 3 - Φ 300;Length: 10mm-6 m

  Nickel plate: 2.0-50mm;Width of 1200 mm;Length is 6000 mm

  Nickel wire: 0.01 Φ Φ 3 mm

  N6 nickel strip/nickel foil

  With high quality electrolytic nickel as raw material, the purity of ** up to 99.98%, after vacuum smelting and subsequent processing into different shapes of pure metal.Pure nickel has excellent corrosion resistance, good mechanical properties, mechanical additive and welding properties. Pure nickel with different purity is mainly used in chemical, electroplating and electronic fields.The corrosion resistance is good in other reductive media except alkaline media.Compared with ni-based alloys, pure nickel has higher conductivity, thermal conductivity and plasticity.Pure nickel can be processed into products of different shapes with a density of 8.9g/cm3.

  Physical properties of N6 pure nickel:

  Density: 8.9 g/cm3

  Melting point: 1500-1600 ° C

  Tensile strength: 380rmN/MM2

  Yield strength: 100RP02N/MM2

  Elongation: 40A5%

  Standard: GB/ t2072-2007 us standard: ASTM B 162

  Supply status: soft (M state) semi-hard (1/4H, 1/2h, 3/4h) hard (H state)

  Pure nickel product specification (MM) :

  Nickel strip: 0.01mm-2.0mm 1.5mm-500mm

  Nickel rod: Φ 3 - Φ 300;Length: 10mm-6 m

  Nickel plate: 2.0-50mm;Width of 1200 mm;Length is 6000 mm

  Nickel wire: 0.01 Φ Φ 3 mm

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