Product Overview
Schedule 40 Carbon Steel Pipe is one of the most popular and reliable pipe types used in construction, manufacturing, and fluid transport. Defined by ANSI B36.10, it offers a balanced wall thickness that supports moderate pressure (150–300 psi), making it suitable for both commercial and industrial applications.
Key Specifications
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Standards & Grades: ASTM A53/A106 Grade B, API 5L Grade B, compliant with ANSI B36.10/ASME B31.3
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Nominal Sizes & Dimensions:
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1/2″ NPS: OD 21.3 mm, Wall 2.77 mm (0.109″)
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2″ NPS: OD 60.3 mm, Wall 3.91 mm (0.154″)
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6″ NPS: OD 168.3 mm, Wall 7.11 mm (0.280″)
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10″ NPS: OD 273.1 mm, Wall 9.27 mm (0.365″)
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Weight Samples:
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1″ pipe: ~1.68 lb/ft (2.50 kg/m)
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4″ pipe: ~10.8 lb/ft (16 kg/m)
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Pressure Ratings:
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1″ (A53B): up to 850 psi @100 °F
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2″ (A106B): up to 650 psi @400 °F
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4″ (API 5L Gr B): ~480 psi @400 °F
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Core Advantages
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Strength & Durability
Ideal for moderate-pressure applications with robust structural integrity -
Wide Availability
Available in numerous sizes (¼″–24″ NPS), wall thicknesses, and lengths up to 12 m -
Cost-Effective
More affordable than higher-grade piping, with excellent long-term performance -
Versatile Fabrication
Easily cut, welded (MIG/TIG/Arc), threaded (NPT), and formed -
Optional Coatings
Available in black, galvanized, or anti-rust oil finishes for enhanced corrosion resistance
Common Applications
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Construction: Structural columns, beams, scaffolding, fencing
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Oil & Gas: Flowlines, small pipelines, protective casing
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HVAC & Plumbing: Steam, water, air, and gas distribution networks
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Irrigation & Agriculture: Underground water supply, farm piping systems
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Fabrication & Manufacturing: Equipment frames, brackets, supports
Why Choose Our Schedule 40 Steel Pipe?
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Trusted Standard: Conforms to global specs (ASTM, API, ANSI) for guaranteed compatibility
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Reliable Pressure Handling: Supports up to ~850 psi in smaller sizes, ideal for many systems
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Simple to Use: Compatible with common fabrication techniques; available in threaded, beveled, or plain ends
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Custom Orders Welcome: Choose your length, finish, and end prep—ask for samples or draw thickness tolerances
Ready to Order?
Tell us your project needs—size, grade, coating or end prep— and we’ll provide:
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Tailored specifications
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Competitive quotes
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Fast delivery schedules
Let’s partner up to supply your Schedule 40 steel pipes—request a quote or sample today!
Luo Kaiwei Steel Company is a multi-ISO certified steel manufacturer specializing in carbon steel plates, pipes and galvanized coils since 2010. Competitive prices and ASTM/JIS compliant. Get instant quotes for bulk orders and global shipping support.