Stainless Steel Flat‌ | ASTM A480 Bar & Countertop Sheets

Stainless Steel Pipe/Tube Product Details

Specifications, Hardness, Sizes, Properties & Manufacturing Process

Key Performance Properties

Tensile Strength

Austenitic grades (e.g., 304/316) exhibit **≥520 MPa tensile strength**, ensuring structural integrity under high-pressure environments like boilers and petrochemical systems. 

Bend Strength

Cold-drawn tubes demonstrate superior bend strength due to work hardening. For example, annealed 304 tubes achieve **≥205 MPa yield strength**, while cold-rolled variants reach up to 350 MPa, ideal for handrails and decorative structures.

Identification & Marking

Each pipe is laser-marked with:

• Material Grade (e.g., SUS304)
• Standard (e.g., ASTM A312)
• Heat Number (traceability)
• Dimensions (OD × WT × Length)
  Custom markings (e.g., brand logos) are available upon request.

Weight Calculation Formula

Weight (kg/m) = 1000(OD−WT)×WT×0.0248
Example: For a 50mm OD × 2mm WT pipe:
$(50-2)\times 2\times 0.0248=2.38\text{kg/m}$.

Why Stainless Steel Pipes May Rust?

Despite their corrosion resistance, rust can occur under specific conditions:

1. Chloride Exposure: Chlorine in seawater or cleaning agents disrupts the passive chromium oxide layer, leading to pitting corrosion.
   
   
2. Surface Contamination: Organic residues (e.g., food acids) or iron particles from tools can initiate localized rust.
   
   
3. Poor Manufacturing: Substandard chromium content (<10.5%) or inadequate annealing reduces corrosion resistance.
4. Mechanical Damage: Scratches or dents expose the base metal to oxidation.

Preventive Measures:

• Regular cleaning with neutral detergents.
• Avoid abrasive tools during installation.
• Select high-grade alloys (e.g., 316L for marine environments).

Why Choose Our Stainless Steel Pipes & Tubes?

1. Advanced Manufacturing: Equipped with cold-drawing and precision-rolling technologies for ±0.05mm tolerance.
2. Certified Quality: Compliance with ASTM, EN, and ISO standards, validated by third-party inspections.
3. Customization: Tailored stainless steel tube pipe sizes, surface finishes, and packaging (PVC + bundles).
4. Global Reach: Trusted by Shell, Petrobras, and Hyundai Heavy Industries.
5. easy to maintain stainless steel pipes and tubes: Mirror-polished surfaces resist dirt buildup, reducing lifecycle costs.