Cross
What is a Socket Weld Cross?
A Socket Weld Cross is a forged pipe fitting used to create a four-way connection where one inlet divides into three outlets or vice versa. These fittings are engineered for high-pressure, small-bore systems, providing precise, leak-proof multi-directional flow in process pipelines.
Socket weld crosses are used in oil & gas refineries, process plants, skids, chemical networks, and any system where fluid branching is needed in two perpendicular directions.
Key Features
- Multi-Directional Flow Management – Ideal for distributing or combining flows.
- High-Strength Welded Design – Withstands vibration, heat, and fluid pressure.
- Compact Configuration – Conserves space in complex pipeline grids.
- Available in Multiple Grades – Suitable for high-corrosion or high-temp media.
- Precision Machined – Ensures accurate pipe alignment and flow distribution.
Types of Socket Weld Cross
- Equal Cross (All Ends Same Size)
- Reducing Cross (Branch Sizes Vary)
- Custom Machined Crosses (On request)
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ½" to 2" |
| Pressure Ratings | Class 3000 / 6000 |
| Material Options | A105, A182 F304/316, Alloy Steel, Duplex |
| Standards | ASME B16.11, MSS-SP-95 |
| End Connection | Socket Weld |
| Property | Typical Value |
|---|---|
| Tensile Strength | 485 – 700 MPa |
| Yield Strength | 250 – 450 MPa |
| Elongation | 20% – 30% |
| Temperature Range | -46°C to +600°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 – 0.35 |
| Manganese (Mn) | 0.60 – 1.65 |
| Silicon (Si) | 0.15 – 0.80 |
| Chromium (Cr) | 18.0 – 20.0 (SS only) |
| Nickel (Ni) | 8.0 – 10.5 (SS only) |
| Molybdenum (Mo) | 2.0 – 3.0 (For 316) |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A105, A182 F304/316, A350 LF2 |
| ASME | B16.11 |
| MSS-SP | SP-95 |
| DIN | 2950, 2975 |
| Cross Type | Size (inches) | Weight per 100 pcs (kg) |
|---|---|---|
| Equal Cross | ½" | 11.50 |
| Equal Cross | 1" | 15.80 |
| Reducing Cross | 1½" | 20.70 |
Applications of Socket Weld Cross
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What’s the use of a cross fitting in a piping system?
It enables four-way branching—helpful in multi-line systems, metering loops, or where multiple flow routes are required.
Can cross fittings cause pressure loss?
Yes, more than elbows or tees, especially if not properly sized or balanced. Use with flow calculation.
Are socket weld crosses available in exotic alloys?
Yes, including Inconel, Hastelloy, and Duplex Steel, depending on pressure and fluid requirements.
Are they suitable for vertical or horizontal installations?
Yes. With proper support, socket weld crosses are equally effective in both orientations.
