Duplex S31803 Elbow Pipe Fittings / Super Duplex S32205 90 degree
elbow
roduct Name: Duplex S31803 Elbow Pipe Fittings / Super Duplex S32750
Size Range:
DN15-DN600 (1/2"-24") Seamless Type
DN15 - DN1200 (1/2"- 48" ) Welded type
Wall Thickness: SCH5 to SCH160
Material:
Carbon Steel: ASTM A234 WPB, WPC, ASTM A420 WPL1, WPL3, WPL6 etc
Stainless Steel: ASTM A403 WP304/304L, WP316/316/L, WP317L, WP321,
WP347 & WPS31254
Alloy Steel: ASTM A234 WP1/WP12/WP11/WP22/WP5/WP7/WP9/WP91
Duplex and super duplex steel: ASTM A815 UNS
S31803/S32205/S32750/S32760/S32550
Manufacture Standard:
ASME B16.9,ASME B16.11,ASME B16.28 ,MSS SP-43,JISB2311,JIS
B2312,JIS B2313,DIN 2605,DIN 2606 ,DIN2615,DIN2616
,BG12459-90,GB/T13401,HGJ514 ,SH3408 ,SH3409, HG/T21635, HG/T21631,
End Bevel: According to the standard or the customer's requirements
Surface Treatment: Shot blasted, annealed & pickling,rust-proof black oil
Non-destructive testing: penetration test, ultrasonic test, radiographic test, any third
parties inspection,
Super Duplex 2507
1. MOQ: 50KGS
2. Type: Pipe Tube Bar Rod Sheet Plate Forging Fitting
3. Short Delivery
4. High Quality
| Standard & Name | SUPER DUPLEX 2507 |
| Application | - Chemical process vessels, piping and heat exchangers
- Pulp mill digesters, bleach washers, chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchangers
- Flue gas desulfurization equipment
|
| LENGTH | 1-12M |
| TYPE | Pipe Tube Bar Rod Sheet Plate Forging Fitting |
| MOQ | 50KGS |
SUPER DUPLEX 2507
UNS S32750
Forms of Super Duplex 2507 Available at Mega Mex
- Sheet
- Plate
- Bar
- Pipe & Tube (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)
Duplex 2507 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.
Corrosion Resistance
2507 Duplex is highly resistant to uniform corrosion by organic
acids such as formic and acetic acid. It is alsohighly resistant to
inorganic acids, especially if they contain chlorides. Alloy 2507
is highly resistant to carbide-related intergranular corrosion. Due
to the ferritic portion of the duplex structure of the alloy it is
very resistant to stress corrosion cracking in warm chloride
containing environments. Through additions of chromium, molybdenum
and nitrogen localized corrosion such as pitting and crevice attack
are improved. Alloy 2507 has excellent localized pitting
resistance.
What are the characteristics of Duplex 2507?
- High resistance to chloride stress corrosion cracking
- High Strength
- Superior resistance to chloride pitting and crevice corrosion
- Good general corrosion resistance
- Suggested for applications up to 600° F
- Low rate of thermal expansion
- Combination of properties given by austenitic and ferritic
structure
- Good weldability and workability
Chemical Composition, %
Cr | Ni | Mo | C | N | Mn |
|---|
24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.030 Max | .24-.32 | 1.20 Max |
Si | Cu | P | S | Fe | |
|---|
0.80 Max | 0.50 Max | 0.035 Max | 0.020 Max | Balance | |
In what applications is Duplex 2507 used?
- Desalination Equipment
- Chemical process pressure vessels, piping and heat exchangers
- Marine Applications
- Flue Gas Scrubbing Equipment
- Pulp & Paper Mill Equipment
- Offshore Oil production/technology
- Oil and gas industry equipment
ASTM Specifications
Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Flanges & Fittings |
|---|
A790 | A790 | A789 | A789 | A240 | A276 | A182 |
Mechanical Properties
Specified Tensile Properties, Plate ASTM A240
Ultimate Tensile Strength, ksi Minimum | .2% Yield Strength, ksi Minimum | % Elongation Min. | |
|---|
116 | 80 | 15 | 310 |
