Schedule 40 Steel Pipe

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

• Standards & Grades: ASTM A53/A106 Grade B, API 5L Grade B, compliant with ANSI B36.10/ASME B31.3

• Nominal Sizes & Dimensions:

  • 1/2″ NPS: OD 21.3 mm, Wall 2.77 mm (0.109″)

  • 2″ NPS: OD 60.3 mm, Wall 3.91 mm (0.154″)

  • 6″ NPS: OD 168.3 mm, Wall 7.11 mm (0.280″)

  • 10″ NPS: OD 273.1 mm, Wall 9.27 mm (0.365″)

• Weight Samples:

  • 1″ pipe: ~1.68 lb/ft (2.50 kg/m)

  • 4″ pipe: ~10.8 lb/ft (16 kg/m)

• Pressure Ratings:

  • 1″ (A53B): up to 850 psi @100 °F

  • 2″ (A106B): up to 650 psi @400 °F

  • 4″ (API 5L Gr B): ~480 psi @400 °F

Core Advantages

1. Strength & Durability
   Ideal for moderate-pressure applications with robust structural integrity

2. Wide Availability
   Available in numerous sizes (¼″–24″ NPS), wall thicknesses, and lengths up to 12 m

3. Cost-Effective
   More affordable than higher-grade piping, with excellent long-term performance

4. Versatile Fabrication
   Easily cut, welded (MIG/TIG/Arc), threaded (NPT), and formed

5. Optional Coatings
   Available in black, galvanized, or anti-rust oil finishes for enhanced corrosion resistance

Common Applications

• Construction: Structural columns, beams, scaffolding, fencing

• Oil & Gas: Flowlines, small pipelines, protective casing

• HVAC & Plumbing: Steam, water, air, and gas distribution networks

• Irrigation & Agriculture: Underground water supply, farm piping systems

• Fabrication & Manufacturing: Equipment frames, brackets, supports

Why Choose Our Schedule 40 Steel Pipe?

• Trusted Standard: Conforms to global specs (ASTM, API, ANSI) for guaranteed compatibility

• Reliable Pressure Handling: Supports up to ~850 psi in smaller sizes, ideal for many systems

• Simple to Use: Compatible with common fabrication techniques; available in threaded, beveled, or plain ends

• 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:

• Tailored specifications

• Competitive quotes

• 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.