Buttweld Cross
What is a Buttweld Cross?
A Buttweld Cross is a four-way pipe fitting that connects one inlet and three outlets (or vice versa) at 90° angles. It allows fluid distribution or collection at the intersection of pipelines. Due to its complexity and stress concentration, it is generally used in low- to medium-pressure systems or reinforced in high-pressure applications.
Buttweld crosses are most commonly used in chemical plants, process skids, water systems, and refinery layouts where multi-line flow branching is necessary.
Key Features
- Connects Four Pipes – Enables 90° intersections for complex piping.
- Size Options – Available in equal and reducing dimensions.
- Versatile Installation – Suitable for horizontal and vertical setups.
- Smooth Flow – Ensures minimal turbulence and efficient transition.
- Standards Compliant – Meets global piping specifications.
Types of Buttweld Crosses
- Equal Cross
- Reducing Cross
- Straight Cross with Branch (Custom)
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ½" to 36" (DN15 – DN900) |
| Wall Thickness | SCH 10 to SCH XXS |
| Material Options | Carbon Steel, SS 304/316, Duplex, Alloy Steel |
| Standards | ASME B16.9, MSS-SP-75, DIN 2615/2616 |
| Manufacturing | Seamless / Welded, Precision Machined |
| Property | Typical Value |
|---|---|
| Tensile Strength | 485 – 750 MPa |
| Yield Strength | 205 – 450 MPa |
| Elongation | ≥ 20% |
| Hardness | 120 – 250 HB |
| Temperature Range | -46°C to +650°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 – 0.35 |
| Manganese (Mn) | 0.60 – 1.65 |
| Silicon (Si) | 0.15 – 0.80 |
| Chromium (Cr) | 16.0 – 20.0 |
| Nickel (Ni) | 8.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grades |
|---|---|
| ASTM | A234 WPB (CS), A403 WP304/316 (SS) |
| ASME | B16.9, B16.28 |
| MSS-SP | SP-75 |
| DIN | 2615, 2616 |
| EN | EN 10253 |
| Cross Type | Size (inches) | Weight per 100 pcs (kg) |
|---|---|---|
| Equal Cross | 2" | 185 |
| Equal Cross | 4" | 260 |
| Reducing Cross | 6" x 4" | 290 |
Applications of Buttweld Crosses
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
Why are buttweld crosses less common than tees?
Because crosses concentrate stress at the intersection, they're typically used only when necessary for multi-line flow.
Are reducing crosses available?
Yes, we provide reducing crosses with different outlet sizes.
Do crosses meet international piping codes?
Yes. Our products comply with ASME, ASTM, DIN, and EN standards.
Can crosses be reinforced for high-pressure use?
Yes. Reinforced pad-welded crosses can be manufactured for high-stress installations.
