Alloy 2507 Super Duplex Tubing

Product Detail

PRODUCT DESCRIPTION 2507 Super Duplex is a high alloy duplex stainless steel with a PRE (pitting resistance equivalent) value of 42.5 minimum. The grade is characterized by very good chloride corrosion resistance, combined with very high mechanical strength. It is particularly suited for use in aggressive environments such as warm chlorinated seawater and acidic chloride-containing media. It is widely used in offshore oil and gas exploration/production and in heat exchangers in petrochemical/chemical processing. The grade is also suitable for hydraulic and instrumentation applications in tropical marine environments.

Size Range

Outside Diameter (OD)	Wall Thickness
.250"–1.000"	.035″–.134″

All Pressure Ratings are approximate and for illustration purposes only. Values are not guaranteed or warranted.

Chemical Requirements

Super Duplex 2507 (UNS S32750) Composition %

C Carbon	Mn Manganese	P Phosphorous	S Sulfur	Si Silicon	Ni Nickel	Cr Chromium	Mo Molybdenum	N Nitrogen	Cu Copper
0.030 max	1.20 max	0.035 max	0.020 max	0.80 max	6.0–8.0	24.0–26.0	3.0–5.0	0.24–0.32	0.50 max

Dimensional Tolerances

OD	OD Tolerance	Wall Tolerance
≤ .500”	± .005”	± 15%
0.500”–1.500” excl	± .005”	± 10%

Mechanical Properties

Yield Strength:	80 ksi min
Tensile Strength	116 ksi min
Elongation (min 2”)	15%
Hardness (Rockwell C Scale)	32 HRC max

Industry Applications

Chemical Process

Super Duplex 2507 is designed for demanding applications which require exceptional strength and corrosion resistance, which are found in chemical process, petrochemical, and seawater equipment. The alloy is used in salt evaporation processes, heat exchangers, and hydrochloric acid environments.