Home > Ingots >

Welding duplex stainless steel grade 2205 Tubing 5/8 Inch x1.2mmx20ft OD 8mm-1000mm

Categories Duplex Stainless Steel Tube
Brand Name: SPEZILLA
Model Number: Seamless Tube
Certification: ISO9001:2008, PED 97/23/EC
Place of Origin: CHINA
MOQ: Negotiation
Price: Negotiation
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
Delivery Time: 25 DAYS
Materials: Duplex Steel UNS S32205/S31803
Product Name: Duplex Stainless Steel Tube
Standard: ASME SA789
O.D.: 5/8"-2"
W.T.: BWG18-BWG14
Length MAX: 12000MM Max.
Pipe Finish: TIG Welded
Type: Welded
Shape: Round
Surface: Bright Annealed
Application: Heat exchanger
Package: Wooden case
  • Product Details
  • Company Profile

Welding duplex stainless steel grade 2205 Tubing 5/8 Inch x1.2mmx20ft OD 8mm-1000mm

Welding duplex stainless steel grade 2205 Tubing 5/8 Inch x1.2mmx20ft OD 8mm-1000mm


UNS S31803

ASME SA-182 (F51), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F51),A240, A276, A479, A789, A790, A815, A928, A988
SAE J405

UNS S32205

ASME SA-182 (F60), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F60), A240, A276, A479, A480, A798, A790, A815, A928, A988
SAE J405

Specifications of Duplex Stainless Steel Welded Tube

1. Standard: ASTM ASME
2. Grade: 630 / 631 / 2205 / 2507 / 17-4PH
ASTM A789, ASTM A790, ASTM A450, ASTM A530,
GB/T 14976, GB/T 14975, GB/T 13296, etc
3. OD: 8mm-1000mm
4. Wall thickness: 0.3mm-30mm
5. Length: max.18000mm or as demand

6. Surface finish: Polishing (180#,220#,240#,320#400#,600#), Hairline, acid pickled, etc.

2205 is a duplex (austenitic-ferritic) stainless steel containing about 40 - 50% ferrite in the annealed condition. 2205 has been a practical solution to chloride stress corrosion cracking problems experienced with 304/304L or 316/316L stainless. The high chromium, molybdenum and nitrogen contents provide corrosion resistance superior to 316/316L and 317L stainless in most environments. 2205 is not suggested for operating temperatures above 600°F.

The design strength of 2205 is significantly higher than 316/316L, often permitting lighter wall construction. 2205 has good notch impact toughness down to temperatures below - 40°F. 2205 is welded with E2209 or ER2209 fillers.


  • High resistance to chloride stress corrosion cracking
  • Chloride pitting and crevice corrosion resistance superior to 317L stainless
  • Good general corrosion resistance
  • High strength
  • Good sulfide stress corrosion resistance
  • Useful up to 600°F


  • Chemical process vessels, piping, and heat exchangers
  • FGD scrubber systems
  • Pulp mill digesters, bleach washers, chip presteaming vessels
  • Food process equipment
  • Oil field piping, heat exchangers


Specifications (ASTM/ASME) Duplex Stainless Steel Pipe
AlloyUNS DesignationMaterial
2205S31803/S32205A 240/SA-240A 270A 790/SA-790
A 789/SA-789A928/SA928

Chemical Compositions:

Chemical Composition (%) Duplex Stainless Steel Pipe
UNS DesignationS31803S32205
Carbon (C) max.0.0300.030
Manganese (Mn) max.2.002.00
Phosphorus (P) max.0.0300.030
Sulfur (S) max.0.0200.020
Silicon (Si) max.1.001.00
Chromium (Cr)21.0 - 23.022.0 - 23.0
Nickel (Ni)4.5 - 6.54.5 - 6.5
Molybdenum (Mo)2.5 - 3.53.0 - 3.5
Nitrogen (N)0.08 - 0.200.14 - 0.20
Iron (Fe)BalanceBalance

ASTM A789 UNS S31803 Tube Specification:

Chemical Element% Present
Carbon (C)0.0 – 0.03
Chromium (Cr)21.00 – 23.00
Manganese (Mn)2.00 max
Silicon (Si)1.00 max
Phosphorous (P)0.0 – 0.03
Sulphur (S)0.0 – 0.02
Nickel (Ni)4.50 – 6.50
Nitrogen (N)0.08 – 0.20
Molybdenum (Mo)2.50 – 3.50
Iron (Fe)Balance


Physical PropertyValue
Density7.805 g/cm³
Thermal Expansion13.7 x10^-6 /K
Modulus of Elasticity200 GPa
Thermal Conductivity19.0 W/m.K
Electrical Resistivity0.085 x10^-6 Ω .m


Mechanical PropertyValue
Proof Stress450 Min MPa
Tensile Strength620 Min MPa
Elongation A50 mm25 Min %
Hardness Brinell290 Max HB

Product Tags:

super duplex pipe


duplex ss pipe

Quality Welding duplex stainless steel grade 2205 Tubing 5/8 Inch x1.2mmx20ft OD 8mm-1000mm for sale
Send your message to this supplier
To: Spezilla Tube Co., Ltd. (Shanghai)
Characters Remaining: (0/3000)
Inquiry Cart 0
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    Contact Us Quickly