Virgin engineers are extremely pleased to introduce ourselves as a supplier and stockiest of Stainless Steel 347 / 347H Manifold Valves. Apart from the usual commitment of high quality products and services, there are many aspects through which our company can stand out and make a difference in the global markets. The total commitment of the team action and experience tends us to make utmost quality products. We stock these manifold valves in various standards, custom dimensions and many more. It has higher general corrosion resistance ability. It has good resistance to intergranular attacks in the welded conditions. These are ready to formable and weldable. It has good low temperature properties.
SS 347 grade is elaborated to meet international standards. Due to the stabilization with niobium, this alloy gets excellent corrosion resistance in the higher temperatures. When exposed to higher temperatures ranging from the 450 deg C to 900 deg C, this grade tends to form chromium carbide precipitate. In the grain boundary affected zone, this alloy is susceptible to intergranular attacks. In addition to niobium inhibits of the formation of chromium carbide and constantly increase the corrosion resistance. This manifold valve posses great weldability and characteristics common to austenitic as well as mechanical attributes that guarantee good ductility and recommended for the cold forming process. The application of grade is generally intended for corrosive environments in the higher temperatures, currently, it is being used in the most severe and critical applications.
How manifold valves are manufactured from 347/347H grade?
It is processed from a hot forming process in a temperature range of 1150 deg C to 750 deg C. It has a lower thermal conductivity that holds temperature of more than 50%. While performing the action of hot forming material should be cleaned to avoid contamination. In order to do that neutral or slightly oxidizing temperature is required. This alloy can be cold formed without any difficulty. The cold hardening act of grade shows its strength for powerful equipment. It is also processed form the pickling process. Alloy 347 can be welded without hot cracking using appropriate filler materials. The welding process is done with and without filler materials.
Since our establishment in the manufacturing field, we adopt stringent quality management. Quality has been one of our top priorities and ensures to maintain it in every level of production level. The quality methods are started from the selection of choosing the right quality raw materials from the reliable vendors. They are working to ensure the develop products are the compliance with international standards. Moreover, we have developed separate quality measures, wherein all the procured products are tested well on defined parameters.
We follow different types of tests such as valve seat leakage test, ultrasonic test, backseat test, closure test, IGC test, shell leakage test, pneumatic test, hydrostatic test, cryogenic testing, burst tests, and fire safety tests. Other tests are relief test, pitting corrosion test, transfer valve test, traveling valve test, radiographic test, and more.
ASTM A276, A351, A494 / ASME SA276, SA351, SA494
up to 6000 psig @ 100° F (414 barg @ 38° C).
1/8 to 1”, Custom Sizes available on request
up to 1200°F(648 °C)
Thread, Weld or Tube End
DIN, ASTM, BS and all International Standards.
|SS 347||1.4550||S34700||SUS 347||08Ch18N12B||X6CrNiNb18-10|
|SS 347H||1.4961||S34709||SUS 347||-||X6CrNiNb18-12|
|SS 347||0.08 max||2 max||1.0 max||0.045 max||0.030 max||17.00 - 20.00||10xC – 1.10||9.00 - 13.00||62.74 min|
|SS 347H||0.04 – 0.10||2.0 max||1.0 max||0.045 max||0.030 max||17.00 - 19.00||8xC – 1.10||9.00 - 13.00||63.72 min|
|Density||Melting Point||Tensile Strength||Yield Strength (0.2%Offset)||Elongation|
|8.0 g/cm3||1454 °C (2650 °F)||Psi – 75000 , MPa – 515||Psi – 30000 , MPa – 205||35 %|
Stainless Steel S34700 / S34709 manifold valves are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.
The material tests performed on stainless steel 347/347H manifold valves are burst tests, Ultrasonic Test, Mechanical Testing, Cryogenic testing, low temperature testing, High pressure gas testing, High temperature testing , etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.
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