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Seamless and welded tube and pipe: ASTM A789; A790
Flanges: ASTM A182
Fittings: ASTM A182; (ASTM A815 applied for)
Plate, sheet and strip: ASTM A240, EN 10088-2
Bar steel: ASTM A479, EN 10088-3
Forged billets: EN 10088-3
Chemical Composition (Nominal)
C
Si
Mn
P
S
Cr
Ni
Mo
N
≤0.030
≤0.8
≤1.2
≤0.025
≤0.015
25
7
4
0.3
Corrosion Resistance
General Corrosion
SAF® 2507 is highly resistant to corrosion by organic acids, exhibiting less than 0.05 mm/year in 10% formic and 50% acetic acid, where ASTM 316L has a corrosion rate higher than 0.2 mm/year. The material maintains resistance even in contaminated acid environments.
Stress Corrosion Cracking
SAF® 2507 demonstrates excellent resistance to chloride-induced stress corrosion cracking (SCC). Testing shows no signs of SCC up to 1000 ppm Cl⁻/300°C and 10000 ppm Cl⁻/250°C. U-bend specimens exposed for 1000 hours in hot brine (108°C, 226°F, 25% NaCl) showed no cracking.
Forms of Supply
Seamless tube and pipe in SAF® 2507 is supplied in dimensions up to 260 mm outside diameter. The delivery condition is solution annealed and either white pickled or bright annealed.
Additional Supply Forms
Welded tube and pipe
Fittings and flanges
Plate, sheet and wide strip
Bar steel
Forged products
Cast products
Heat Treatment
Tubes are normally delivered in heat-treated condition. If additional heat treatment is required due to further processing, the following is recommended:
Solution Annealing: 1050-1125°C (1920-2060°F), rapid cooling in air or water.
Mechanical Properties
The following figures apply to material in the solution annealed condition. Tube and pipe with wall thickness above 20 mm (0.787 in.) may have slightly lower values. For seamless tubes with wall thickness <4 mm, we guarantee proof strength (Rp0.2) values that are 50 MPa higher than standard values at 20°C (68°F) and at higher temperatures.
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
