Q235 Steel Bar, a widely used structural carbon steel bar manufactured according to the Chinese standard GB Q235 Bar. It is known for its stable chemical composition, reliable mechanical performance, and good welding and forming ability. Our products strictly comply with international quality requirements, with full mill test certificates, third-party inspection reports, and traceable heat numbers.
Q235 Carbon Steel Bars deliver balanced strength and ductility, ensuring stable performance in demanding environments. With controlled levels of carbon, manganese, and silicon, this grade offers excellent toughness, moderate corrosion resistance, and good wear resistance. Each batch is thoroughly tested to guarantee consistency and compliance.
Features & Advantages
Standard Compliance: Produced under GB/T standards, with international certification available.
Excellent Workability: Easy to cut, bend, and weld, ideal for structural fabrication.
Reliable Mechanical Strength: Provides dependable yield strength and tensile properties for long-term performance.
Surface Options: Black, polished, or custom-coated surfaces to meet different applications.
Full Traceability: Supply with MTC, chemical analysis, and optional SGS/BV/TUV third-party inspection.
Applications
Q235 Carbon Steel Bar is versatile and widely used in multiple industries:
Construction & Infrastructure: Bridges, buildings, and structural frameworks.
Machinery & Equipment: Shafts, fasteners, and mechanical parts.
Automotive & Transportation: Chassis, brackets, and support components.
Manufacturing & Fabrication: Custom-processed into rods, beams, or machine parts.
Product Specifications & Technical Data
Standard Available Sizes
|
Category |
Details |
|
Standard |
Q235 Carbon Steel Bar |
|
Shape Availability |
Round bar, flat bar, square bar, hexagonal bar |
|
Size Range |
Round: 6mm – 500mm; Square/Flat: 10mm – 400mm; Custom sizes available |
|
Length |
3m – 12m standard, cut-to-length on request |
|
Surface Condition |
Black, Bright, Polished, Peeled, Turned, Galvanized |
Mechanical Properties(Typical for Q235)
|
Property |
Value |
|
Tensile Strength |
370 – 500 MPa |
|
Yield Strength |
≥ 235 MPa |
|
Elongation |
≥ 20% |
|
Hardness |
≤ 160HB |
Chemical Composition (% max)
|
Element |
Content (%) |
|
C |
≤ 0.22 |
|
Si |
≤ 0.35 |
|
Mn |
0.30 – 0.65 |
|
P |
≤ 0.045 |
|
S |
≤ 0.045 |
Customization Services
Special sizes and non-standard dimensions available.
Processing options: cutting, drilling, welding, CNC machining.
Multiple surface finishes: oil-coated, painted, galvanized for enhanced protection.
Flexible minimum order quantities and fast delivery for urgent projects.
Pricing & Delivery
Jiangsu Cunrui Metal Products Co., Ltd. offers competitive pricing with bulk order discounts. We maintain a large stock of Q235 Steel Bars for immediate shipment, ensuring short lead times. Customized orders are delivered according to schedule with reliable packaging suitable for sea or land transport.
Our Strength
Factory Scale: Modern production lines with advanced rolling and machining equipment.
Capacity: Large monthly output with strong supply stability.
Certifications: ISO, CE, and third-party quality approvals.
Export Experience: Years of global supply to Europe, America, Middle East, and Asia.
Service & Support
Quick Response
Inquiries answered within 12 hours.
Technical Support
Professional advice for material selection and application.
Packaging
Standard export seaworthy packing, customized on request.
After-Sales Guarantee
If any quality issue occurs, we provide replacement or refund solutions.
FAQ
Q1: Do you provide mill certificates with Q235 Steel Bar?
Yes, MTC and third-party inspection reports are available with every shipment.
Q2: Can you produce customized dimensions?
Absolutely, we offer tailor-made sizes, machining, and surface treatments based on drawings or requirements.
Q3: What is your minimum order quantity (MOQ)?
We support flexible MOQ to meet both large projects and small trial orders.
Q4: How long is the delivery time?
Stock items ship within 7 days; customized orders typically require 15–30 days.
Q5: Which industries use GB Q235 Bar most frequently?
It is commonly used in construction, machinery, automotive parts, and general fabrication.
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