2205 is a standard duplex stainless steel with balanced ferrite and austenite microstructure. It integrates high mechanical strength, good toughness and excellent local corrosion resistance. Benefiting from reasonable chromium, nickel, molybdenum and nitrogen alloy design, it shows strong resistance to pitting, crevice corrosion and chloride stress corrosion cracking. It has stable mechanical properties, good weldability and cost-effective performance, widely used in petrochemical, sewage treatm

Advantage

1.Double-phase structure brings double strength compared with ordinary austenitic stainless steel 2.Excellent resistance to chloride pitting and stress corrosion cracking 3.Good fatigue resistance and abrasion resistance for harsh cyclic working conditions 4.Low carbon composition and stable welding performance, suitable for complex processing

Ingredient

• Cr
• 22.00 ~ 23.00
• Ni
• 4.50 ~ 6.50
• Mo
• 3.00 ~ 3.50
• N
• 0.14 ~ 0.20
• C
• ≤0.03
• Mn
• ≤2.00
• Si
• ≤1.00
• P
• ≤0.030
• S
• ≤0.020
• Fe
• Balance

• Board
• Stick
• Pipe
• Forging

Title

S2205 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
• ≥655 MPa
• ≥450 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J
• Annealed
• ≥620 MPa
• ≥415 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J

• STATE
• Annealed
• RP
• ≥655 MPa
• YIELD
• ≥450 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J
• STATE
• Annealed
• RP
• ≥620 MPa
• YIELD
• ≥415 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J

Title

S2205 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
• CHINA
• GB/T 1220‑2021、GB/T 4356‑2021

Mechanics

• STATE
• RP
• YIELD
• EXTEND
• SHRINK
• HARDNESS
• IMPACT
• Annealed
• ≥655 MPa
• ≥450 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J
• Annealed
• ≥620 MPa
• ≥415 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J

• STATE
• Annealed
• RP
• ≥655 MPa
• YIELD
• ≥450 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J
• STATE
• Annealed
• RP
• ≥620 MPa
• YIELD
• ≥415 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J

Title

S2205 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
• ≥655 MPa
• ≥450 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J
• Annealed
• ≥620 MPa
• ≥415 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J

• STATE
• Annealed
• RP
• ≥655 MPa
• YIELD
• ≥450 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J
• STATE
• Annealed
• RP
• ≥620 MPa
• YIELD
• ≥415 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J

Title

S2205 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
• ≥655 MPa
• ≥450 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J
• Annealed
• ≥620 MPa
• ≥415 MPa
• ≥25 %
• ≥40 %
• ≤293 HBW
• ≥27 J

• STATE
• Annealed
• RP
• ≥655 MPa
• YIELD
• ≥450 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J
• STATE
• Annealed
• RP
• ≥620 MPa
• YIELD
• ≥415 MPa
• EXTEND
• ≥25 %
• SHRINK
• ≥40 %
• HARDNESS
• ≤293 HBW
• IMPACT
• ≥27 J