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Durable Q235B Round Bar GB En S235jr Customizable Length
US$530.00
1-49 Tons
US$490.00
50-99 Tons
US$465.00
100+ Tons
Product profile
Customization
AvailableAfter-sales Service
24-Hour Online Technical Support, Cutting Service,Warranty
No Quality Problem Lifelong After-Sales ConsultatiModel NO.
Q235BType
Carbon Steel BarStandard
ASTM, GB, JIS, DINTechnique
Hot RolledApplication
Structural Steel BarSurface Treatment
Black SurfaceAlloy
Non-alloySpecial Use
Construction, Welding Structure, Bracket ManufactuEquivalent Grade
S235jr, Ss400, A36Material Grade
Q235B Carbon Mild SteelDelivery Time
7-15 Working DaysMain Usage
Building Construction, Steel Structure, Welding PAInspection
Third-Party Inspection Support (SGS, BV)Diameter Range
φ6mm~φ200mmTransport Package
Standard Export Bundle Packaging with Steel StripsSpecification
Diameter: Φ6mm - Φ200mm, Length: 3m/6m/9m/12m or cTrademark
OEM & ODM AcceptableOrigin
ChinaHS Code
7214990000Production Capacity
50000Key features
Global Standard Equivalence: Fully equivalent to S235JR, SS400, and ASTM A36 for global markets.
Free Custom Cutting: Complimentary cutting service available to meet specific requirements.
Factory Direct Supply: Direct from manufacturer with 5000 tons monthly output and fast delivery.
Third-Party Inspection: Supports SGS and BV inspections with free MTC mill test certificates.
Seaworthy Packaging: Anti-rust treated bundles with steel strips for safe ocean transport.
Low Carbon Mild Steel: Excellent weldability and plasticity for construction and machinery.
Fast Delivery Time: 7-15 working days lead time after deposit for most orders.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.81h
AI-Powered supplier vetting
SummaryChangchen operates in metal materials, special steel, forgings, powder metallurgy, metal processing machinery, and cutting services. It reports customization from samples and designs, ODM availability, recent new-product development, CAD/PS-related R&D capability, and documented R&D inputs, outputs, reviews, verification, and validation. Production-related evidence includes valid contracts with associated subcontractors, inventory capability, raw-material traceability, and 100% finished-product inspection; however, only one quality inspector is reported. The supplier states that products can meet several national and international standards, but no specific certifications are identified. Overseas support is limited: there are no overseas agents or branches, warehouses, showrooms, or stated overseas service countries. Lead time is reported as within 15 working days in both peak and off-season. Financial information is insufficient for a reliable assessment, and no customer cases are provided.
Supplier typeThe supplier’s stated business scope covers sales of metal materials and products, special steel, forgings, powder metallurgy products, recycled resources, metal-processing machinery, and metal cutting services. This supports classification as a metal-material and metal-processing supplier, although the slices do not establish a more specific legal or manufacturing classification.
R&D capabilityThe supplier reports new products during the past year, R&D responsibilities covering new-product development, design drawings, production technical support, and customer specifications, plus CAD and PS software capability. It also has auditable R&D design-input, output, review, verification, and validation documentation, although no SDK is available.
Production capacityProduction-related evidence includes sawing and cutting equipment, metal cutting and processing activities, inventory capability, valid manufacturing contracts with associated subcontractors, raw-material traceability, and 100% finished-product inspection. The reported quality-control staffing is one inspector, while supplier-management procedures have no records, so capability is supported but operational depth is limited.
Customization capabilityChangchen explicitly provides customization from samples and designs, offers ODM services, and states that customized services can be developed according to customer requirements. Its R&D role includes preparing product specifications for customer approval, providing direct evidence of customer-oriented customization capability.
Product Q&A
Q:What is Q235B steel equivalent grade?
A:
Q235B is fully equivalent to S235JR / SS400 / ASTM A36, widely accepted by European, Southeast Asian and American markets.
Q:What is your MOQ?
A:
1 ton for trial order, bulk order discount for 10MT / 50MT and above.
Q:Can you provide factory test certificate (MTC)?
A:
Yes, 100% free MTC mill test certificate with each batch. SGS/BV third-party inspection is acceptable.
Q:What is the surface and quality guarantee?
A:
Hot rolled black surface, no crack, no inclusion, straightness guaranteed. Strict size tolerance according to GB/T702 standard.
Q:Can you do custom cutting and processing?
A:
Yes, we provide free simple cutting service according to customer's requirement.
Send Inquiry
*To:
Jiangsu Changchen Materials Co., Ltd.
Jiangsu Changchen Materials Co., Ltd.*Content:
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