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

• Board
• Stick
• Pipe
• Forging

Title

2507 Board

Size

0.5mm – 100mm

Length

1000mm – 6000mm (customizable)

Production

Hot rolled + Annealed

Surface

Pickled / 2B / Polished

Processing

Hot rolled + Annealed

Standard

• USA
• ASTM A240 / ASME SA240
• China
• GB/T 3280‑2015、GB/T 4237‑2017

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

Title

2507 Stick

Size

8mm – 300mm

Length

1000mm – 6000mm (customizable)

Production

Hot rolled + Annealed

Surface

Black / Peeled / Polished

Processing

Hot rolled + Annealed

Standard

• USA
• ASTM A276 / ASME SA479
• USA
• GB/T 1220‑2021、GB/T 4356‑2021

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

Title

2507 Pipe

Size

6mm – 500mm OD, 1mm – 50mm WT

Length

1000mm – 12000mm (customizable)

Production

Hot finished + Annealed / Cold drawn + Annealed

Surface

Pickled / Bright annealed / Polished

Processing

Hot finished + Annealed / Cold drawn + Annealed

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

Title

2507 Forging

Size

Custom size available

Length

Custom size available

Production

Forged + Annealed

Surface

Rough forged / Machined / Polished

Processing

Forged + Annealed

Standard

• USA
• ASTM A182 / ASME SA182
• CHINA
• GB/T 4238‑2022、GB/T 10088‑2018

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