If you’re searching “pipe schedule for SS welded pipes” or “SCH 10 vs SCH 40 vs SCH 80 weight difference”, here’s the clear answer:
Pipe schedule defines the wall thickness of SS welded pipes, which directly impacts strength, pressure capacity, and weight.
This guide by KAD STEEL ROLLING MILLS explains everything in a simple and practical way.
What is Pipe Schedule in SS Welded Pipes?
Pipe schedule (SCH) is a standard used to define wall thickness for a given pipe diameter.
- Same outer diameter (OD)
- Different wall thickness
- Higher schedule = thicker pipe
For SS welded pipes:
- SCH 10 → Thin wall, lightweight
- SCH 40 → Medium thickness, standard use
- SCH 80 → Thick wall, heavy-duty use
Why Pipe Schedule Matters in SS Welded Pipes
Choosing the correct schedule is critical for performance and safety.
- Determines pressure handling capacity
- Impacts strength and durability
- Affects pipe weight and cost
- Changes internal diameter and flow rate
SCH 10 vs SCH 40 vs SCH 80 (SS Welded Pipe Comparison)
| Feature | SCH 10 | SCH 40 | SCH 80 |
|---|---|---|---|
| Wall Thickness | Thin | Medium | Thick |
| Weight | Light | Moderate | Heavy |
| Pressure Capacity | Low | Medium | High |
| Cost | Lowest | Moderate | Highest |
| Common Use | Low-pressure systems | General industrial piping | High-pressure applications |
Weight Difference in SS Welded Pipes
Weight increases as wall thickness increases.
- SCH 10 pipes are lighter due to less material
- SCH 40 offers balanced strength and weight
- SCH 80 is significantly heavier for added durability
For the same diameter SS welded pipe:
- SCH 40 can be ~1.5× heavier than SCH 10
- SCH 80 can be ~2× heavier than SCH 10
This impacts:
- Transportation cost
- Installation effort
- Structural load
Example: SS 304 Welded Pipe (2 Inch)
| Schedule | Thickness (Approx.) | Weight (kg/m approx.) |
|---|---|---|
| SCH 10 | ~2.77 mm | ~3.9 kg/m |
| SCH 40 | ~3.91 mm | ~5.4 kg/m |
| SCH 80 | ~5.54 mm | ~7.5 kg/m |
Values may vary slightly depending on standards.
Where Each Schedule is Used
SCH 10 SS Welded Pipes
- Water lines
- Drainage systems
- Low-pressure applications
SCH 40 SS Welded Pipes
- General industrial piping
- Chemical and water transport
- Most commonly used schedule
SCH 80 SS Welded Pipes
- High-pressure systems
- Steam and heavy-duty pipelines
- Critical industrial applications
Key Insight for Buyers
For the same size and grade (like SS 304):
Welded and seamless pipes have the same schedule thickness and weight.
The difference is only in:
- Manufacturing process
- Cost
- Extreme pressure performance
Final Thoughts
Understanding pipe schedule is essential when selecting SS welded pipes.
- SCH 10 → Lightweight and economical
- SCH 40 → Standard and widely used
- SCH 80 → Strong and heavy-duty
The right choice depends on pressure, application, and budget.
At KAD STEEL ROLLING MILLS, we supply SS welded pipes in all schedules (SCH 10, 40, 80, and more) with guaranteed quality and industry compliance. Choosing the right pipe ensures better performance, safety, and long-term efficiency.
