Product Description
Steel Profiles
Material Standard
Commonly used materials:
Q235, HRB400,45#, 40Cr, GCr15,T10, 420 stainless steel, W18Cr4V,316 stainless steel, 42CrMo
Execution standard:
GB, ASTM, JIS, AISI, DIN, BS
Usage:
Construction, Industry
Differences in Processes for Different Materials
Carbon steel round bar: Hot rolling → cold drawing → annealing (optional) Rolling temperature, drawing deformation
Stainless steel round bar: Hot rolling → solution treatment → cold drawing → polishing Solution temperature (1050~1100ºC)
Tool steel round bar: Forging → annealing → fine grinding Forging ratio, annealing hardness control
Process Selection Points
Cost priority: hot rolling process is suitable for high volume and low precision requirements.
Precision priority: cold drawing + grinding process for high value-added products.
Performance priority: forging + heat treatment (e.g., tempering) to enhance mechanical properties.
Typical Application Areas
1. Construction and infrastructure
Material: Q235, HRB400, Specification: Φ12~50mm
Use: reinforced concrete structure, scaffolding fasteners, ground bolts.
2. Machinery Manufacturing
Material: 45#, 40Cr, GCr15, Specification: Φ10~150mm
Uses: shafts (machine tool spindles, automobile half shafts) Gears, couplings, hydraulic rods.
3. Hardware tools
Material: T10, 420 stainless steel, W18Cr4V, Specification: Φ5~30mm
Uses: drills, screwdrivers, tool blanks.
4. Energy and Chemical
Material: 316 stainless steel, 42CrMo, Specifications: Φ20~200mm
Uses: valve parts, pump shafts, reactor stirring rods.
5. Transportation
Material: 60Si2Mn (spring steel), 42CrMo, specification: Φ15~100mm.
Use: automobile suspension spring, train axle.
Main Products
