Overview
Power your mining and bulk handling conveyors with our DIN 2394 ST37.2 Heavy-Duty Conveyor Roller Tubing. Available in sizes from Ø50 to 194 mm (1.969–7.638 inches) outer diameter (OD) and 1.5 to 8 mm (0.059–0.315 inches) wall thickness (WT), including industry-standard Ø89 x 3 mm (3.504 x 0.118 inches) and ultra-heavy-duty Ø194 x 8 mm (7.638 x 0.315 inches) and Ø159 x 6 mm (6.260 x 0.236 inches), these ERW steel tubes deliver robust strength, precision, and durability for conveyor rollers in mining, aggregates, and bulk material handling. Engineered for extreme loads and tight tolerances, they ensure reliable performance in demanding environments, with minimal secondary uses in structural components.
Why Choose Our Heavy-Duty Conveyor Roller Tubing?
·Robust Strength: Grade ST37.2 offers a yield strength of 235 N/mm², ideal for heavy-duty conveyor tubing in mining and bulk handling.
·Tight Tolerances: Precise dimensions (e.g., Ø89 mm/3.504 inches OD ±0.12 mm, 3 mm/0.118 inches WT ±10%) ensure reliable roller performance.
·Smooth Surface Finish: Clean, uniform surfaces minimize friction, enhancing conveyor roller longevity in abrasive conditions.
·High Load Capacity: ERW steel construction supports heavy loads, with sizes like Ø194 x 8 mm (7.638 x 0.315 inches) for extreme applications.
·Global-Standard Sizes: Sizes like Ø89 x 3 mm (3.504 x 0.118 inches), Ø159 x 6 mm (6.260 x 0.236 inches), and Ø194 x 8 mm meet worldwide conveyor needs.
·Cost-Effective Durability: ST37.2 delivers high performance at competitive costs for heavy-duty applications.
Common Steel Grades for Heavy-Duty Conveyor Rollers
Our DIN 2394 ST37.2 conveyor roller tubing is complemented by other grades to meet diverse heavy-duty material handling needs:
·ST37.2 (DIN 2394): Low-carbon steel (yield strength: 235 N/mm², tensile strength: 340–480 N/mm²), equivalent to EN 10305-3 E235, for medium to heavy-duty rollers in mining and aggregates (e.g., Ø89 x 3 mm / 3.504 x 0.118 inches, Ø159 x 6 mm / 6.260 x 0.236 inches).
·E235 (EN 10305-3): Low-carbon steel (yield strength: 235 N/mm², tensile strength: 340–480 N/mm²) for medium-duty rollers in industrial conveyors (e.g., Ø76.1 x 2 mm / 2.996 x 0.079 inches).
·E355 (EN 10305-3): High-strength steel (yield strength: 355 N/mm², tensile strength: 490–630 N/mm²) for heavy-duty rollers in mining and bulk handling (e.g., Ø101.6 x 3 mm / 4.000 x 0.118 inches, Ø194 x 8 mm / 7.638 x 0.315 inches).
·ASTM A513 1020: Balanced strength (yield strength: ~379 N/mm², tensile strength: ~448 N/mm²) for medium-duty rollers in industrial settings (e.g., Ø76.2 x 3 mm / 3.000 x 0.118 inches).
·ASTM A513 1026: High strength (yield strength: ~448 N/mm², tensile strength: ~517 N/mm²) for heavy-duty rollers in bulk material handling (e.g., Ø114.3 x 3 mm / 4.500 x 0.118 inches, Ø159 x 6 mm / 6.260 x 0.236 inches).
·ASTM A500 Grade B/C: Structural-grade steel (yield strength: 317–345 N/mm², tensile strength: 400–427 N/mm²) for large-diameter, high-load rollers (e.g., Ø168.3 x 4 mm / 6.626 x 0.157 inches, Ø194 x 8 mm / 7.638 x 0.315 inches).
·AISI 304 (EN 1.4301): Stainless steel for corrosion-resistant rollers in harsh or hygienic environments (e.g., Ø89 x 3 mm / 3.504 x 0.118 inches).
These grades ensure versatility for medium to ultra-heavy-duty conveyor applications in demanding environments.
Manufacturing Process
Our DIN 2394 ST37.2 conveyor roller tubing is crafted for durability and precision:
1. Electric Resistance Welding (ERW): Steel strips are welded and cold-sized to achieve precise dimensions (e.g., Ø89 x 3 mm / 3.504 x 0.118 inches, Ø194 x 8 mm / 7.638 x 0.315 inches), ensuring high-quality ERW steel conveyor tubing.
2. Cold Forming: Enhances dimensional accuracy and surface quality for reliable roller performance.
3. Heat Treatment: Normalized or as-welded conditions optimize mechanical properties for heavy-duty material handling.
4. Surface Finishing: Smooth, clean surfaces, often oiled or phosphated, ensure corrosion resistance and ease of assembly in abrasive environments.
5. Quality Testing: Dimensional checks, tensile testing, and non-destructive testing (e.g., eddy current) ensure compliance with DIN 2394 standards.
This process delivers precision welded tubing optimized for heavy-duty conveyor roller performance.
Material Specifications
Grade: ST37.2 (DIN 2394), equivalent to EN 10305-3 E235, with options for E235, E355, ASTM A513 1020, 1026, AISI 304
Chemical Composition (ST37.2, Max % unless specified):
·Carbon (C): 0.17
·Silicon (Si): 0.35
·Manganese (Mn): 1.40
·Phosphorus (P): 0.045
·Sulfur (S): 0.045
Mechanical Properties (ST37.2, Normalized):
·Yield Strength: 235 N/mm² (min)
·Tensile Strength: 340–480 N/mm²
·Elongation: 25% (min)
Size Range:
Outer Diameter (OD): Ø50–194 mm (1.969–7.638 inches)
Wall Thickness (WT): 1.5–8 mm (0.059–0.315 inches)
Length: Random (1,000–12,000 mm / 3.3–40 ft) or custom-cut
Common Sizes for Heavy-Duty Conveyor Rollers (OD x WT, metric):
·Ø60.3 x 2 mm (2.374 x 0.079 inches, medium-duty industrial rollers)
·Ø76.1 x 2 mm (2.996 x 0.079 inches, medium-duty mining rollers)
·Ø89.0 x 3 mm (3.504 x 0.118 inches, heavy-duty mining rollers)
·Ø101.6 x 3 mm (4.000 x 0.118 inches, high-capacity bulk handling)
·Ø114.3 x 3 mm (4.500 x 0.118 inches, high-capacity bulk handling)
·Ø139.7 x 3.5 mm (5.500 x 0.138 inches, heavy-duty mining rollers)
·Ø159.0 x 6 mm (6.260 x 0.236 inches, ultra-heavy-duty bulk handling)
·Ø168.3 x 4 mm (6.626 x 0.157 inches, ultra-heavy-duty bulk handling)
·Ø194.0 x 8 mm (7.638 x 0.315 inches, ultra-heavy-duty mining rollers)
Tolerances (per DIN 2394):
·OD (≤100 mm): ±0.12 mm; (>100–194 mm): ±0.15%
·WT: ±10%
·Length: ±3 mm for cut lengths
·Delivery Conditions: Normalized, As-Welded
·Surface Conditions: Smooth, clean, or coated (oiled/phosphated) for corrosion resistance
Applications
Our DIN 2394 ST37.2 and other precision tubes (e.g., Ø89 x 3 mm / 3.504 x 0.118 inches, Ø194 x 8 mm / 7.638 x 0.315 inches) are designed for:
·Heavy-Duty Conveyor Rollers: High-performance tubing for material handling systems in:
·Mining: Coal, ore, and mineral conveyors (ST37.2, E355, Ø89 x 3 mm; ASTM A500 Grade B/C, Ø194 x 8 mm).
·Bulk Handling: Aggregates, cement, grain conveyors (E355, ASTM A513 1026, Ø159 x 6 mm).
·Industrial: Heavy manufacturing, steel production (ST37.2, E235, Ø101.6 x 3 mm).
·Corrosive Environments: Mineral processing with AISI 304 (Ø89 x 3 mm).
Secondary Applications (limited use):
·Structural components (e.g., conveyor frames with ST37.2, ASTM A500).
·Industrial supports (e.g., heavy-duty racks with E355).
Quality Assurance
All ST37.2, E235, E355, and other tubes comply with DIN 2394, EN 10305-3, or relevant standards (e.g., ASTM A513, A500). Test certificates per DIN EN 10204 3.1 verify chemical composition, mechanical properties, and dimensional accuracy. Eddy current testing, flattening tests, and surface inspections ensure top performance for heavy-duty conveyor tubing.
Maximize Your Conveyor Efficiency
·Engineered for Extreme Loads: Sizes like Ø89 x 3 mm (3.504 x 0.118 inches), Ø159 x 6 mm (6.260 x 0.236 inches), and Ø194 x 8 mm (7.638 x 0.315 inches), with grades ST37.2 to AISI 304, ensure durability in mining and bulk handling.
·Global Standards Compliance: DIN 2394, EN 10305-3, and ASTM options meet worldwide market needs.
·Flexible Supply: Stocked standard sizes and customizable lengths for your conveyor needs.
·Expert Guidance: Our team helps you select the ideal grade and size for maximum efficiency.
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