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Overview
Duplex 2507 is a super duplex stainless steel designed for
applications which demand exceptional strength and corrosion
resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7%
nickel. This high molybdenum, chromium and nitrogen content results
in excellent resistance to chloride pitting and crevice corrosion
attack and the duplex structure provides 2507 with exceptional
resistance to chloride stress corrosion cracking.
Usage of Duplex 2507 should be limited to applications below 600° F
(316° C). Extended elevated temperature exposure can reduce both
the toughness and corrosion resistance of alloy 2507.
Duplex 2507 possesses excellent mechanical properties. Often a
light gauge of 2507 material can be used to achieve the same design
strength of a thicker nickel alloy. The resulting savings in weight
can dramatically reduce the overall cost of fabrication.
What is Equal Tee?
A equal tee is the most common pipe fitting. It is used to either
combine or split a fluid flow. It is a type of pipe fitting which
is T-shaped having two outlets, at 90° to the connection to the
main line. It is a short piece of pipe with a lateral outlet. A tee
is used for connecting pipes of different diameters or for changing
the direction of pipe runs. They are made of various materials and
available in various sizes and finishes. They are extensively used
in pipeline networks to transport two-phase fluid mixtures.
When we call a steel tee “equal tee”, means the branch diameter of
this tee is same with the main pipe (Run pipe) diameter of this
tee. When we see only one size of tee in its description, it means
this tee is the equal tee. for example, 8″ tee mean the tee main
pipe and branch pipe both are 8 inches. Sometimes the equal tee
also described 8″X8″ which is the same meaning of 8″ tee.
Specification
ASTM A815/A815M-20 Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings.
Specifications | ASTM A815 / ASME SA815 |
Size | Seamless Butt Weld Fittings: 1/2″ – 24″, Welded Butt Weld Fittings: 1/2″ – 48″ |
Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
Thickness | 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75 |
Type | Seamless / Welded / Fabricated |
Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
Mechanical Properties
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S32750 | 7.8 | 0.281 | 1350 | 2460 |
Applications: