Q235B St37 Seamless Carbon Steel Boiler Tubes 20" Diameter 12mm Thickness for Industrial Applications

Price Negotiable
Price: 800 - 9000 USD / ton
MOQ: 5T
Delivery Time: 60-75days
Brand: HDT
Product Description
Product Overview

Large diameter seamless steel boiler tubes manufactured from Q235B Grade St37 carbon steel, designed for high-pressure applications in industrial settings.

Key Specifications
Tube Diameter 1/2" to 20" (15mm to 1626mm)
Wall Thickness 2mm to 30mm
Length 6m to 12m (custom lengths available)
Annual Capacity 72,000 MT for black tubes
Technical Specifications
Parameter Details
Material Grades 10#, 20#, 45#, A53A, A53B, A106Gr.A, A106Gr.B, ST52, ST358, 16Mn, Q235, Q195, Q345, Q215, API 5L Gr.B, X42, X52, X60, X65, X70, X80
Standards ASTM, GB, API, JIS, BS, DIN, YB, SNY
Seam Type Seamless
Surface Treatment Black painted, PE/PVC/PP coated, Galvanized, color coated, anti-rust varnished, anti-rust oiled, checkered, epoxy coating
End Types Plain end, spigot & socket joint, beveled, cut square, flanged, piling shoes
End Protector Plastic tube cap or iron protector
Applications
  • General industrial service (petroleum, chemical, aviation)
  • Fluid, gas and oil transport systems
  • Pressure and heat transmission applications
  • Urban infrastructure and construction projects
Packaging & Shipping

Standard export packaging suitable for all transport methods. Available price terms: EXW, FOB, CFR, CIF. Payment options: T/T, L/C at sight.

Product Images
Large diameter seamless steel boiler tube exterior view Seamless boiler tube cross-section and wall thickness Industrial boiler tube installation and application Quality inspection of seamless steel tubes
Certifications
Quality management system certification Industry compliance and standards certification
Contact Information

Please contact us for pricing, custom specifications, or additional product information.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person Yolanda Zou

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