Three-quarter angle view of a stainless steel four-way equal cross fitting isolated on white background, showing all four perpendicular ports

Stainless Steel Butt-Weld Cross – Equal & Reducing Four-Way Connector ASME B16.9

Category Tag

  • Four-Way Flow Distribution: Engineered for creating perpendicular intersections in piping systems – available in equal (all four ports same size) and reducing configurations for complex manifold and grid layouts.

  • Full Size & Pressure Range: Covers DN10 to DN2000 with wall thicknesses Sch10 to XS, pressure classes PN0.25–1.0MPa, and Class150–3000LB.

  • Multiple Material Options: Manufactured from 304/L, 316/L, and Duplex 2205/2507 stainless steel for corrosion resistance across diverse applications.

  • Global Standard Compliance: Produced to ASME B16.9, GB/T12459, DIN 2615, and other major international specifications.

  • Critical Junction Integrity: Reinforced design ensures structural strength at the four-way intersection point under high pressure and temperature.

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The Central Hub for Complex Piping Networks

The Stainless Steel Butt-Weld Cross is a specialized fitting designed to create reliable four-way intersections in critical industrial pipelines. Whether you need an equal cross for symmetrical flow distribution or a reducing cross for stepped-down branch lines, our comprehensive range covers every requirement from DN10 to DN2000.

As part of our Butt-Weld Fittings family, these crosses are engineered for applications where complex piping grids and manifold systems demand maximum integrity – including oil & gas header networks, petrochemical processing, power generation cooling systems, and offshore platform utilities.

 

Equal vs. Reducing Cross: Understanding the Configuration

Type Description Best Application
Equal Cross All four outlets share the same nominal diameter Manifold systems, distribution headers, symmetrical piping grids
Reducing Cross Branch outlets (one or more) smaller than main run Complex take-offs, equipment connections, multi-size distribution

 

Engineering Excellence at the Four-Way Junction

Managing stress and ensuring integrity at a four-way intersection presents unique engineering challenges. Our butt-weld crosses are designed to address these through:

  • Reinforced Body Geometry: Enhanced material distribution at the central junction to withstand hydraulic forces and thermal stress from all four connected lines.

  • Seamless or Welded Construction: Available in seamless (for sizes up to DN600) or welded (for larger diameters) configurations, both manufactured to strict dimensional tolerances.

  • Smooth Internal Transitions: Precision manufacturing ensures minimal turbulence at the intersection point, critical for flow efficiency in manifold applications.

  • Beveled Ends: Standard bevel preparation on all outlets for immediate field welding.

 

Materials Engineered for Extreme Environment

Material Grade Key Properties Typical Applications
304/304L Excellent corrosion resistance, good formability General chemical, water treatment, food processing
316/316L Superior chloride resistance, higher strength Marine, pharmaceutical, coastal facilities
Duplex 2205 Twice the yield strength of 316L, excellent SCC resistance Offshore platforms, desalination, sour service
Duplex 2507 Super duplex, extreme corrosion and pitting resistance Highly aggressive chemical, high-chloride environments

 

Global Standard Compliance

All crosses are manufactured and tested to meet or exceed:

  • ASME B16.9 – Factory-Made Wrought Butt-welding Fittings

  • GB/T 12459-2005 – Seamless Butt-welding Pipe Fittings

  • GB/T 13401-2005 – Plate-Formed Butt-welding Pipe Fittings

  • DIN 2615 – Steel Butt-welding Pipe Fittings – Tees

  • SH3408 / SH3409 / SH3410 – Petrochemical Industry Standards

  • HG/T21635, DL/T695, SY/T0510 – Industry-Specific Standards

 

Cross-section Diagram

Technical cutaway diagram of a butt-weld cross fitting illustrating the internal four-way intersection and flow paths
Precision Junction Engineering: Cross-section reveals the reinforced central hub and smooth internal transitions for optimal flow distribution

 

Specification Table

Nominal Pipe Size (NPS) Outside Diameter At Bevel D (mm) Center to End C (mm)
Run Outlet Run(C) Outlet(M)
1/2 x 1/2 21.3 21.3 25.4 25.4
3/4 x 3/4 26.7 26.7 28.4 28.4
1 x 1 33.4 33.4 38.1 38.1
1-1/4 x 1-1/4 42.2 42.2 47.8 47.8
1-1/2 x 1-1/2 48.3 48.3 57.2 57.2
2 x 2 60.3 60.3 63.5 63.5
2-1/2 x 2-1/2 73 73 76.2 76.2
3 x 3 88.9 88.9 85.9 85.9
3-1/2 x 3-1/2 101.6 101.6 95.2 95.2
4 x 4 114.3 114.3 104.6 104.6
5 x 5 141.3 141.3 124 124
6 x 6 168.3 168.3 142.7 142.7
8 x 8 219.1 219.1 177.8 177.8
10 x 10 273.1 273.1 215.9 215.9
12 x 12 323.9 323.9 254 254
14 x 14 355.6 355.6 279.4 279.4
16 x 16 406.4 406.4 304.8 304.8
18 x 18 457.2 457.2 342.9 342.9
20 x 20 508 508 381 381
22 x 22 558.8 558.8 419.1 419.1
24 x 24 609.6 609.6 431.8 431.8
26 x 26 660.4 660.4 495.3 495.3
28 x 28 711.2 711.2 520.7 520.7
30 x 30 762 762 558.8 558.8
32 x 32 812.8 812.8 596.9 596.9
34 x 34 863.6 863.6 635 635
36 x 36 914.4 914.4 673.1 673.1
38 x 38 965.2 965.2 711.2 711.2
40 x 40 1016 1016 749.3 749.3
42 x 42 1066.8 1066.8 762 762
44 x 44 1117.6 1117.6 812.8 762
46 x 46 1168.4 1168.4 850.9 800.1
48 x 48 1219.2 1219.2 889 838.2
52 x 52 1320.8 1320.8 965.2 914.4
54 x 54 1371.6 1371.6 1003.3 952.5
56 x 56 1422.4 1422.4 1041.4 965.2
60 x 60 1524 1524 1117.6 1016
64 x 64 1626 1626 1194 1092
66 x 66 1676.4 1676.4 1219.2 1066.8
68 x 68 1727 1727 1270 1168
72 x 72 1829 1829 1320 1245
76 x 76 1930 1930 1422 1320
80 x 80 2032 2032 1499 1397

For complete dimensional data for all sizes (DN10–DN2000), download our Butt-Weld Cross Technical Documentation.

 

Key Applications

  • Oil & Gas: Header networks, manifold systems, gathering stations

  • Petrochemical: Distribution headers, reactor feed systems

  • Power Generation: Cooling water manifolds, steam distribution

  • Offshore Platforms: Utility headers, firewater distribution

  • Water Treatment: Filter manifolds, distribution grids

  • Shipbuilding: Ballast system manifolds, fire main networks

  • Industrial Plants: Compressed air headers, process distribution

 

Quality Assurance & Testing

  • Material Traceability: Mill certificates provided for all raw materials

  • Dimensional Inspection: 100% inspection to ASME B16.9 / GB/T12459 tolerances

  • Non-Destructive Testing: RT/UT/PT/MT available upon request

  • Mechanical Testing: Tensile strength, hardness, flattening tests per batch

  • Chemical Analysis: Verification of material composition

  • Hydrostatic Testing: Available upon customer request

 

Custom Options

  • Special Materials: Other grades available upon request

  • Non-Standard Dimensions: Custom sizes and reducing configurations

  • End Preparation: Beveled ends standard; special preparations available

  • Marking: Laser marking per customer specification

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