Stainless Steel Rod for Construction | High Load Capacity

Product Specifications

Parameter	Details
Material Grades	316L, 304, 2205 Duplex, 17-4 PH (Customizable for stainless steel wire rod or stainless steel tig rods)
Diameter Range	Round Rods: 6–500mm; Threaded Rods: M6–M30; Wire Rods: 1.6–12mm (stainless steel wire rod)
Length	0.1–12m (Standard), Custom Lengths Available (±0.1mm Tolerance)
Hardness (HV)	150–250 HV (304/316L); 300–400 HV (Cold-Worked/Duplex Grades)
Tensile Strength	520–860 MPa (304); 800–1,200 MPa (Duplex 2205); 700–1,000 MPa (17-4 PH)
Surface Finish	Polished (#4–#8 Mirror), Cold Drawn, Passivated, Electroplated (Optional)
Welding Compatibility	stainless steel tig rods (ER308L/316L), MIG, Laser Welding (stainless steel welding rod chart included)
Certifications	ISO 9001, ASTM A276, EN 10088, NACE MR0175 (H₂S Resistance)

Mechanical & Chemical Properties

Tensile Strength

Our stainless steel wire rod (316L grade) achieves tensile strengths of 520–860 MPa, ideal for structural applications like bridge reinforcements and high-rise frameworks. The 2205 duplex grade combines austenitic-ferritic microstructures to deliver 1,200 MPa tensile strength, outperforming standard grades by 40% in chloride-rich environments such as coastal infrastructure. For precision components like seismic dampers, 17-4 PH rods (700–1,000 MPa) are heat-treatable to enhance hardness and dimensional stability.

Bend Strength

Bend strength ranges from 60–75% of tensile strength, optimized for dynamic loads in construction. For example, cold-drawn stainless steel tig rods (ER316L) exhibit bend resistance of 310–430 MPa, ensuring crack-free welds in steel-truss joints. Duplex 2205 rods provide 30% higher bend resistance than austenitic grades, making them suitable for offshore platform components exposed to tidal forces.

Identification & Marking

Stainless steel rods are labeled per global standards for traceability:

ASTM A276: Specifies chemical compositions (e.g., 316L: 16–18% Cr, 10–14% Ni, 2–3% Mo).
ISO 15510: Ensures compliance for marine and architectural applications.
Laser Etching: Permanent markings include grade (e.g., "316L-860MPa"), batch number, and tensile class.

Weight Calculation

Weight (kg) = Volume (m³) × Density (7,930 kg/m³ for austenitic steel).
Example for a 10mm diameter, 1m rod:
π × (0.005m)² × 1m × 7,930 kg/m³ ≈ 0.62 kg.
For stainless steel wire rod (12mm diameter):
Weight ≈ 0.89 kg/m. Custom weights vary with alloy density (e.g., duplex 2205: 7,850 kg/m³).

Why Stainless Steel Rusts: Causes & Solutions

While stainless steel resists corrosion via a chromium oxide layer (≥10.5% Cr), specific conditions trigger rust:

Chloride Exposure: Coastal saltwater or de-icing salts degrade passive layers. Use 316L rods with molybdenum for marine-grade stainless steel tig rods in bridge cables or seawalls.
Galvanic Corrosion: Contact with carbon steel accelerates oxidation. Insulate joints using dielectric coatings or reference our stainless steel welding rod chart for ER309L filler metals.
Mechanical Damage: Scratches expose iron. Passivate surfaces with nitric acid post-machining to restore chromium oxide layers.
Low Oxygen Environments: Stagnant water in crevices (e.g., threaded joints) breeds crevice corrosion. Design gaps >0.5mm for oxygen flow.

Why Choose Our Stainless Steel Rods

Certified Quality: ISO 9001 and ASTM-compliant production with third-party SGS/BV inspections.
Precision Customization: Tailor stainless steel wire rod, tig rods, or threaded rods to exact dimensions (±0.1mm tolerance).
Fast Delivery: 15–30-day lead time via DHL/FedEx, with bulk discounts for orders over 5 tons.
Sustainability: 100% recyclable alloys; lean duplex grades reduce nickel consumption by 50%.
Technical Support: Expert guidance on welding parameters (e.g., ER316L preheat: 150–200°C) and corrosion prevention.

Stainless Steel Rod for Construction | High Load Capacity