High-Precision Stainless Steel Tubing - Seamless & Welded
Engineered for heat exchangers, instrumentation, and architectural excellence. Custom dimensions with micron-level precision and superior surface RA values.
Product Categories & Specializations
Tubes are defined by their Actual Outside Diameter (OD) and Wall Thickness (WT). Categorize them by their end-use:
Heat Exchanger & Boiler Tubes
Built to withstand extreme thermal cycling and high-pressure differentials.
Specifications: Manufactured to ASTM A213 or A249.
Features: Available in U-bent configurations for heat exchanger nests.
Testing: 100% Eddy Current and Hydro-tested to ensure zero leakage.
Instrumentation & Hydraulic Tubing
Small-diameter tubes for high-pressure fluid control and sensor lines.
Finishes: Bright Annealed (BA) for ultra-clean internal surfaces.
Precision: Tight tolerances to ensure leak-proof connections with compression fittings.
Ornamental & Structural Tubes
Focused on aesthetics and strength-to-weight ratios.
Shapes: Square (SHS), Rectangular (RHS), and Round (CHS).
Aesthetics: Mirror polish (No. 8) or Satin/Brushed (No. 4) for architectural use.
Technical Specifications
This section proves your manufacturing capability to handle complex requirements.
Material Grades
Standard: 304, 304L, 316, 316L.
High-Temperature: 310S, 321, 347.
Corrosion Resistant: 904L, Duplex 2205, Super Duplex 2507.
| Feature | Capability |
| Outside Diameter (OD) | 6.0mm to 219.1mm |
| Wall Thickness (WT) | 0.5mm to 20.0mm |
| Tolerance | ASTM A269 / A213 / A554 (Precision Grade) |
| Finishes | Mill Finish, 2B, BA, No. 4, No. 8 (Mirror) |
Industrial Applications
Energy & Power: Condensers, boilers, and heat recovery steam generators.
Automotive: Fuel lines, hydraulic systems, and structural frames.
Food & Dairy: Sanitary tubing with high-polish internal diameters for easy cleaning.
Furniture & Design: High-end architectural railings and modern furniture frames.
Quality Control & Certifications
Dimensional Inspection: Digital calipers and laser micrometers for OD/WT verification.
Surface Roughness Testing: Profilometer testing to ensure RA compliance.
Spectro Analysis: PMI (Positive Material Identification) to guarantee grade integrity.
Compliance: ISO 9001:2015, PED (Pressure Equipment Directive) certified.
Ready to elevate your infrastructure with precision-engineered stainless steel solutions?
Contact Maheshwari Stainless for Consultation