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    In the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate.
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ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance

  • ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance
  • ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance
  • ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance
  • ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance
  • ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting with High Strength and Excellent SCC Resistance
Place of Origin Shanghai, China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Stainless Steel Reducer
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T,Western Union
Supply Ability 10 Ton/Month
Product Details
Type Concentric Reducer, Eccentric Reducer Material ASTM A815 UNS S31803, UNS S32205 (Duplex 2205)
Size Range 1/2 Inch To 48 Inch (DN15-DN1200) Wall Thickness SCH5S, SCH10S, SCH40S, SCH80S, SCH160, XXS
Standard ASME B16.9, MSS SP75, EN10253, NORSOK M-650 Key Property High Strength, Excellent SCC Resistance
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Duplex Steel Reducer

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Butt Weld Reducer

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S32205 Pipe Reducer
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Product Description
ASTM A815 UNS S31803 S32205 Duplex Stainless Steel Reducer Butt Weld Pipe Fitting ASME B16.9
Product Overview

Our ASTM A815 UNS S31803/S32205 duplex stainless steel reducers combine the best properties of austenitic and ferritic stainless steels. With approximately twice the yield strength of standard 316L and outstanding resistance to stress corrosion cracking, these reducers are the premier choice for demanding offshore, marine, and chemical processing applications.

Product Specifications
Type Concentric Reducer, Eccentric Reducer
Material ASTM A815 UNS S31803, UNS S32205 (Duplex 2205)
Size Range 1/2 Inch to 48 Inch (DN15-DN1200)
Wall Thickness SCH5S, SCH10S, SCH40S, SCH80S, SCH160, XXS
Form Seamless and Welded
Standard ASME B16.9, MSS SP75, EN10253, NORSOK M-650
Key Property High Strength (2x 316L) with Excellent SCC Resistance
Application Offshore Platforms, Chemical Tankers, Desalination, Oil and Gas
Dimension Chart (ASME B16.9 Duplex Reducer)
DN NPS Large OD (mm) Small OD (mm) End to End H (mm)
25x20 1x3/4 33.7 26.9 51
40x25 1-1/2x1 48.3 33.7 64
50x40 2x1-1/2 60.3 48.3 76
80x50 3x2 88.9 60.3 89
100x80 4x3 114.3 88.9 102
150x100 6x4 168.3 114.3 140
200x150 8x6 219.1 168.3 152
250x200 10x8 273.0 219.1 178
300x250 12x10 323.9 273.1 203
350x300 14x12 355.6 323.9 330
400x350 16x14 406.4 355.6 356
500x400 20x16 508.0 406.4 508
Duplex 2205 vs 316L Mechanical Properties Comparison
Property Duplex 2205 (S32205) 316L Austenitic Advantage
Yield Strength (MPa) min 450 min 170 2.6x Stronger
Tensile Strength (MPa) min 655 min 485 35% Higher
Elongation (%) min 25 min 40 316L more ductile
Hardness (HRC) max 28 max 22 Duplex harder
PREN (Pitting Resistance) 34-38 24-26 Superior Pitting Resistance
SCC Resistance Excellent Moderate Superior SCC Resistance
Thermal Conductivity (W/m.K) 19 15 Better Heat Transfer
Chemical Composition of Duplex 2205
Element C Cr Ni Mo N Mn Si Fe
Content (%) max 0.03 22.0-23.0 4.5-6.5 3.0-3.5 0.14-0.20 max 2.00 max 1.00 Balance
Key Advantages
  • Twice the yield strength of 316L - enables thinner wall design and weight savings
  • Excellent resistance to stress corrosion cracking in chloride environments
  • Superior pitting and crevice corrosion resistance (PREN greater than 34)
  • ISO/TUV/SGS certified with full NORSOK M-650 compliance available
  • Third-party inspection accepted (SGS, BV, TUV, DNV, ABS, LR)
  • Cost-effective alternative to super duplex for many applications
  • Non-destructive testing available: UT, RT, PT, PMI upon request
Tags:

Concentric Pipe Reducer

Pipe Reducer Fittings

Butt Weld Reducer