What are your payment terms?

T/T, L/C at sight, flexible terms for long-term cooperation.

Which port do you ship from?

FOB Shanghai / Lianyungang / Tianjin port as customer's request.

What is the main application?

Widely used for building construction, steel structure, mechanical parts, welding components, equipment brackets.

Q235B Cold Drawn Bright Round Bar for Machinery Parts

Name: Q235B Cold Drawn Bright Round Bar for Machinery Parts
Brand: Jiangsu Changchen Materials Co., Ltd.
SKU: 2181717812

Jiangsu, ChinaJiangsu Changchen Materials Co., Ltd.

US$720.00

1-49 Tons

US$700.00

50-99 Tons

US$499.00

100+ Tons

Product profile

Customization

Available

After-sales Service

24-Hour Online Technical Support, Cutting Service,

Warranty

No Quality Problem Lifelong After-Sales Consultati

Model NO.

Q235B-CD-Round Bar

Type

Carbon Steel Bar

Standard

ASTM, GB, JIS, DIN

Technique

Cold Drawn

Application

Structural Steel Bar, Precision Machinery Parts, Fastener Blanks, Shaft

Surface Treatment

Bright Cold Drawn Surface

Alloy

Non-alloy

Special Use

Precision Machining, Automatic Lathe Raw Material

Diameter Range

5mm - 100mm Solid Cold Drawn Round

Delivery Length

3m,6m,9m,12m or Custom Cut to Length

Delivery Time

7-15 Working Days

MOQ

H9 / H10 / H11 Precision

Surface Roughness

Ra ≤ 0.8μm

Transport Package

International Seaworthy Anti-Rust Standard

Specification

Diameter 5mm-100mm, Fixed Length or Custom Cut

Trademark

OEM & ODM Acceptable

Origin

China

HS Code

7215100000

Production Capacity

50000

Key features

Bright Smooth Surface: No black oxide skin, no polishing required before precision machining.

Custom Cutting Service: Free precise cutting available in 3m, 6m, 9m, 12m or custom lengths.

Global Standard Equivalence: Q235B equivalent to S235JR, SS400, and ASTM A36 for worldwide use.

Free MTC Certificate: 100% free mill test certificate provided with every batch.

Stable Mechanical Performance: Good ductility and weldability suitable for mass precision production.

Anti-scratch Export Packing: Wrapped in plastic sleeves with steel strips to prevent rust and damage.

24-Hour Technical Support: Online technical assistance available around the clock for all issues.

Company profile

Fast DeliveryManagement CertificationR&D CapabilitiesQA/QC Inspectors

Jiangsu Changchen Materials Co., Ltd.

Jiangsu, China

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: ≤4.49h

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.