Common Sizes of SCH 10 Stainless Steel Pipe
In fluid transportation, industrial applications, municipal engineering, and marine applications, sch 10 stainless steel pipes have become the core pipe material for low-pressure conditions due to their advantages of thin walls, lightweight construction, excellent corrosion resistance, and outstanding cost-effectiveness.
Unlike the SCH wall thickness standard for carbon steel, SCH 10 is a dedicated thin-wall grade suitable for stainless steel pipes and is a commonly used specification for marine auxiliary pipelines and civil industrial pipelines.
1. Eight Mainstream Nominal Diameter SCH 10 Stainless Steel Pipes
Nominal Pipe Size (inches) | Outer Diameter (mm) | SCH 10 Standard Wall Thickness (mm) | Theoretical Weight (kg/m) | Main Application Scenarios (Including Marine Use) |
1/2″ | 21.3
| 1.65 | 0.83 | Marine instrument pipelines, cabin ventilation branch pipes, small marine cooling pipelines, HVAC systems, equipment instrument fluid pipelines |
1″ | 33.7 | 1.65 | 1.34 | Marine domestic water supply branch pipes, cabin circulating cooling pipelines, medium and small chemical pipelines, building branch pipelines |
2″ | 60.3 | 2.11 | 2.96 | Marine sewage collection branch pipes, marine auxiliary transmission pipelines, food processing equipment pipelines, municipal small water supply and drainage systems |
4″ | 114.3 | 2.77 | 7.93 | Marine HVAC main branch pipelines, marine fresh water supply main pipes, factory transmission main pipelines, water treatment equipment pipelines |
6″ | 168.3 | 2.77 | 11.79 | Medium-sized marine water supply main pipelines, municipal HVAC main pipes, low-pressure chemical medium transmission main pipelines |
8″ | 219.1 | 3.05 | 16.51 | Large marine auxiliary pipe networks, offshore platform low-pressure transmission pipelines, industrial plant water supply and drainage main pipelines |
10″ | 273.0 | 3.05 | 20.63 | Ocean-going marine low-pressure public pipe networks, large chemical project transmission pipelines, municipal main pipe networks |
12″ | 323.9 | 3.38 | 26.91 | Large marine centralized water supply and heating main pipelines, marine engineering low-pressure pipelines, large urban municipal pipe networks |
2. Can SCH 10 Stainless Steel Pipes Be Used in Marine Applications?
Many purchasing and design personnel are primarily concerned with whether SCH 10 stainless steel pipes can be used in marine applications. The answer is: They are suitable for low-pressure auxiliary applications in ships, but are strictly prohibited from use in high-pressure, core pressure-bearing, and highly corrosive seawater applications. Specific application scope and limitations are as follows, fully complying with classification society general specifications and marine engineering construction standards.
1)Compliant Marine Applications
SCH 10 (SCH 10S) 304 and 316L stainless steel pipes, with their excellent resistance to salt spray and moisture corrosion, standardized dimensions, lightweight design, and ease of installation, are widely applicable to non-core low-pressure auxiliary systems in ships, making them the preferred thin-walled pipe material for civilian vessels and small to medium-sized engineering vessels.
They are mainly used in shipboard domestic water supply and drainage systems, shipboard HVAC and cooling circulation systems, shipboard instrumentation and control pipelines, shipboard galley exhaust systems, and freshwater storage and transportation auxiliary pipelines.
These operating conditions typically involve pressures ≤1.0MPa, without strong impacts or high-intensity seawater erosion. The strength and corrosion resistance of SCH 10 pipes fully meet long-term usage requirements and pass conventional marine testing standards, offering a significantly better cost-performance ratio than thick-walled pipes.
2) Strictly Prohibited Marine Applications
Due to their thin-walled structural characteristics, SCH 10 stainless steel pipes cannot be used in core pressure-bearing, high-pressure, or highly corrosive conditions in ships. This includes high-pressure pipelines for ship fuel oil transportation, main pipelines for direct seawater suction and discharge, ship steam transportation pipelines, media transportation pipelines for chemical tankers, and pipelines for the core pressure-bearing structures of the ship's hull.
These scenarios involve high pressure, highly corrosive media, and large fluctuations in operating conditions. Thin-walled SCH 10 pipes are prone to deformation, leakage, and accelerated corrosion. According to marine specifications, these scenarios must use SCH 40 or higher thick-walled stainless steel pipes, and must be made of materials with special marine-grade certification.
3) Specific Considerations for Marine Selection
When purchasing for marine applications, it is essential to look for the SCH 10S mark, not ordinary carbon steel SCH 10 pipes. 316L material should be given priority, as it contains molybdenum and has better resistance to salt spray and seawater chloride corrosion than 304 material, making it more suitable for the humid and high-salt-spray environment of ships. For long-term near-shore and ocean-going vessel applications, it is necessary to additionally verify the marine material traceability report of the pipes to ensure compliance. Welcome to inquire stainless steel pipe cost from us directly.
Original source: https://www.marinesteelpipe.com/a/common-sizes-of-sch-10-stainless-steel-pipe.html
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In fluid transportation, industrial applications, municipal engineering, and marine applications, sch 10 stainless steel pipes have become the core pipe material for low-pressure conditions due to their advantages of thin walls, lightweight construction, excellent corrosion resistance, and outstanding cost-effectiveness.
Unlike the SCH wall thickness standard for carbon steel, SCH 10 is a dedicated thin-wall grade suitable for stainless steel pipes and is a commonly used specification for marine auxiliary pipelines and civil industrial pipelines.
1. Eight Mainstream Nominal Diameter SCH 10 Stainless Steel Pipes
Nominal Pipe Size (inches) | Outer Diameter (mm) | SCH 10 Standard Wall Thickness (mm) | Theoretical Weight (kg/m) | Main Application Scenarios (Including Marine Use) |
1/2″ | 21.3
| 1.65 | 0.83 | Marine instrument pipelines, cabin ventilation branch pipes, small marine cooling pipelines, HVAC systems, equipment instrument fluid pipelines |
1″ | 33.7 | 1.65 | 1.34 | Marine domestic water supply branch pipes, cabin circulating cooling pipelines, medium and small chemical pipelines, building branch pipelines |
2″ | 60.3 | 2.11 | 2.96 | Marine sewage collection branch pipes, marine auxiliary transmission pipelines, food processing equipment pipelines, municipal small water supply and drainage systems |
4″ | 114.3 | 2.77 | 7.93 | Marine HVAC main branch pipelines, marine fresh water supply main pipes, factory transmission main pipelines, water treatment equipment pipelines |
6″ | 168.3 | 2.77 | 11.79 | Medium-sized marine water supply main pipelines, municipal HVAC main pipes, low-pressure chemical medium transmission main pipelines |
8″ | 219.1 | 3.05 | 16.51 | Large marine auxiliary pipe networks, offshore platform low-pressure transmission pipelines, industrial plant water supply and drainage main pipelines |
10″ | 273.0 | 3.05 | 20.63 | Ocean-going marine low-pressure public pipe networks, large chemical project transmission pipelines, municipal main pipe networks |
12″ | 323.9 | 3.38 | 26.91 | Large marine centralized water supply and heating main pipelines, marine engineering low-pressure pipelines, large urban municipal pipe networks |
2. Can SCH 10 Stainless Steel Pipes Be Used in Marine Applications?
Many purchasing and design personnel are primarily concerned with whether SCH 10 stainless steel pipes can be used in marine applications. The answer is: They are suitable for low-pressure auxiliary applications in ships, but are strictly prohibited from use in high-pressure, core pressure-bearing, and highly corrosive seawater applications. Specific application scope and limitations are as follows, fully complying with classification society general specifications and marine engineering construction standards.
1)Compliant Marine Applications
SCH 10 (SCH 10S) 304 and 316L stainless steel pipes, with their excellent resistance to salt spray and moisture corrosion, standardized dimensions, lightweight design, and ease of installation, are widely applicable to non-core low-pressure auxiliary systems in ships, making them the preferred thin-walled pipe material for civilian vessels and small to medium-sized engineering vessels.
They are mainly used in shipboard domestic water supply and drainage systems, shipboard HVAC and cooling circulation systems, shipboard instrumentation and control pipelines, shipboard galley exhaust systems, and freshwater storage and transportation auxiliary pipelines.
These operating conditions typically involve pressures ≤1.0MPa, without strong impacts or high-intensity seawater erosion. The strength and corrosion resistance of SCH 10 pipes fully meet long-term usage requirements and pass conventional marine testing standards, offering a significantly better cost-performance ratio than thick-walled pipes.
2) Strictly Prohibited Marine Applications
Due to their thin-walled structural characteristics, SCH 10 stainless steel pipes cannot be used in core pressure-bearing, high-pressure, or highly corrosive conditions in ships. This includes high-pressure pipelines for ship fuel oil transportation, main pipelines for direct seawater suction and discharge, ship steam transportation pipelines, media transportation pipelines for chemical tankers, and pipelines for the core pressure-bearing structures of the ship's hull.
These scenarios involve high pressure, highly corrosive media, and large fluctuations in operating conditions. Thin-walled SCH 10 pipes are prone to deformation, leakage, and accelerated corrosion. According to marine specifications, these scenarios must use SCH 40 or higher thick-walled stainless steel pipes, and must be made of materials with special marine-grade certification.
3) Specific Considerations for Marine Selection
When purchasing for marine applications, it is essential to look for the SCH 10S mark, not ordinary carbon steel SCH 10 pipes. 316L material should be given priority, as it contains molybdenum and has better resistance to salt spray and seawater chloride corrosion than 304 material, making it more suitable for the humid and high-salt-spray environment of ships. For long-term near-shore and ocean-going vessel applications, it is necessary to additionally verify the marine material traceability report of the pipes to ensure compliance. Welcome to inquire stainless steel pipe cost from us directly.