2507 is a high-performance super duplex stainless steel composed of ferrite and austenite dual-phase structure. It combines high strength, excellent toughness and outstanding resistance to pitting, crevice corrosion and chloride stress corrosion cracking. With high chromium, molybdenum and nitrogen content, it performs excellently in harsh environments such as seawater, brine and strong acid media. It is widely used in desalination, marine engineering, petrochemical, flue gas desulfurization and

Advantage

1.Ultra-high mechanical strength, greatly reducing equipment wall thickness and weight 2.Superior resistance to chloride pitting, crevice corrosion and stress corrosion cracking 3.Good anti-oxidation and acid corrosion resistance in severe chemical environments 4.High structural stability, good weldability and long service life under harsh working conditions

Ingredient

• Cr
• 24.00 ~ 26.00
• Ni
• 6.00 ~ 8.00
• Mo
• 3.00 ~ 4.00
• N
• 0.24 ~ 0.32
• C
• ≤0.03
• Mn
• ≤1.20
• Si
• ≤0.80
• P
• ≤0.035
• S
• ≤0.020
• Fe
• Balance

Standard

• USA
• ASTM A312 / ASME SA312
• China
• GB/T 12771‑2020、GB/T 14976‑2012

Mechanics

• STATE
• RP
• YIELD
• EXTEND
• SHRINK
• HARDNESS
• IMPACT
• Annealed
• ≥800 MPa
• ≥550 MPa
• ≥15 %
• ≥40 %
• ≤310 HBW
• ≥27 J
• Annealed
• ≥770 MPa
• ≥520 MPa
• ≥15 %
• ≥40 %
• ≤310 HBW
• ≥27 J

• STATE
• Annealed
• RP
• ≥800 MPa
• YIELD
• ≥550 MPa
• EXTEND
• ≥15 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤310 HBW
• IMPACT
• ≥27 J
• STATE
• Annealed
• RP
• ≥770 MPa
• YIELD
• ≥520 MPa
• EXTEND
• ≥15 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤310 HBW
• IMPACT
• ≥27 J