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TOBO GROUP TOBO International Trading(Shanghia)Co.,Ltd Tianda Oil Pipe Co., Ltd TOBO Pipeline Equipment Co.,Ltd TPCO & TISCO Pipe(Tianjin)Co.,Ltd.
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ASTM A403 WP321/321H Titanium Stabilized Stainless Steel Reducer for High Temperature Service up to 800 Degree C ASME B16.9 Pipe Fitting

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ASTM A403 WP321/321H Titanium Stabilized Stainless Steel Reducer for High Temperature Service up to 800 Degree C ASME B16.9 Pipe Fitting

Price : Negotiable

Material : ASTM A403 WP321, WP321H

Special Feature : Titanium Stabilized for High Temperature Service

Place of Origin : Shanghai, China

Type : Concentric Reducer, Eccentric Reducer

MOQ : 1PC

Certification : ISO/TUV/SGS

Standard : ASME B16.9, MSS SP75, EN10253, DIN2605, JIS B2312

Supply Ability : 10 Ton/Month

Brand Name : TOBO

Payment Terms : T/T,Western Union

Delivery Time : 15-30 Workdays

Packaging Details : Standard Shipping Package

Size Range : 1/2 Inch to 48 Inch (DN15-DN1200)

Model Number : Stainless Steel Reducer

Wall Thickness : SCH5S, SCH10S, SCH40S, SCH80S, SCH160, XXS

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ASTM A403 WP321/321H Stainless Steel Concentric & Eccentric Reducer

Our ASTM A403 WP321/321H stainless steel reducers are titanium-stabilized austenitic stainless steel fittings engineered for superior performance in high-temperature applications. The titanium addition prevents chromium carbide precipitation during welding and service at elevated temperatures up to 800°C, making them the preferred choice for heat exchangers, boiler systems, and thermal processing equipment.

Product Specifications
Type Concentric Reducer, Eccentric Reducer
Material ASTM A403 WP321, WP321H
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, DIN2605, JIS B2312
Special Feature Titanium Stabilized for High Temperature Service up to 800°C
Application Heat Exchangers, Boilers, Thermal Processing, High Temperature Piping
Dimension Chart (ASME B16.9 Reducer)
DN NPS Large OD Series A (mm) Large OD Series B (mm) End to End H (mm)
20x15 3/4x1/2 26.9 25 38
25x20 1x3/4 33.7 32 51
32x25 1-1/4x1 42.4 38 51
40x32 1-1/2x1-1/4 48.3 45 64
50x40 2x1-1/2 60.3 57 76
65x50 2-1/2x2 73.0 76 89
80x65 3x2-1/2 88.9 89 89
100x80 4x3 114.3 108 102
125x100 5x4 141.3 133 127
150x125 6x5 168.3 159 140
200x150 8x6 219.1 219 152
250x200 10x8 273.0 273 178
300x250 12x10 323.9 325 203
350x300 14x12 355.6 377 330
400x350 16x14 406.4 426 356
450x400 18x16 457.0 478 381
500x450 20x18 508.0 529 508
Chemical Composition of WP321/321H
Element C Mn Si Cr Ni Ti P S
WP321 max 0.08 max 2.00 max 1.00 17.0-19.0 9.0-12.0 5xC min max 0.045 max 0.030
WP321H 0.04-0.10 max 2.00 max 1.00 17.0-19.0 9.0-12.0 4xC min max 0.045 max 0.030
Key Advantages
  • Titanium stabilized to prevent intergranular corrosion after welding
  • Excellent oxidation resistance at temperatures up to 800°C
  • Superior creep and stress rupture properties vs standard 304/304L
  • ISO/TUV/SGS certified with full material traceability
  • Widely used in thermal power plants, refineries, and chemical processing
  • Non-destructive testing available: UT, RT, PT upon request

Product Tags:

Concentric Pipe Reducer

      

WP321H Butt Weld Reducer

      

Stainless Steel Reducer

      
Quality ASTM A403 WP321/321H Titanium Stabilized Stainless Steel Reducer for High Temperature Service up to 800 Degree C ASME B16.9 Pipe Fitting for sale

ASTM A403 WP321/321H Titanium Stabilized Stainless Steel Reducer for High Temperature Service up to 800 Degree C ASME B16.9 Pipe Fitting Images

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