What certifications does the product have?

The product is certified under ISO, AISI, ASTM, GB, EN, and JIS standards.

What are the main applications of this flat bar?

It is widely used for general fabrication, furniture making, machinery manufacturing, shipbuilding, railway spare parts, and boiler construction.

Mild Steel Flat Bar for ASTM Ss400 Series

Name: Mild Steel Flat Bar for ASTM Ss400 Series
Brand: Shanghai Changzeng Metal Co., Ltd.
SKU: 843808715

Shanghai, ChinaShanghai Changzeng Metal Co., Ltd.

US$580.00-780.00

25 Tons

Sample price:US$32.00/foot.Request sample

Product profile

Customization

Available

Type

Stainless Steel Flats

Standard

ASTM, AISI, GB, JIS, DIN

Grade

Certification

ISO, AISI, ASTM, GB, EN, JIS

Shape

Flat

Technique

Cold Rolled

Surface Treatment

Bright

Place of Origin

Shanghai

Width

China (Mainland)

Length

Various Size

Alloy or Not

Item Type

Packaging

Coated or Custom

MOQ

1 Ton

Thickness

Seaworthing Packing

Material

304 Stainless Steel

Colour

Black

Transport Package

1. Big Order/ Bulk Small Od: Packed by Steel Strip

Specification

GB, ASTM, AISI

Trademark

Origin

Shanghai

Production Capacity

5000 Tons/ Month, 15000 Tons/ Season

Key features

Wide Application Range: Suitable for furniture, machinery, shipbuilding, railway parts, and steel structures.

Flexible Customization: Offers various sizes, custom packaging, logo printing, and special length production.

High Plasticity: Capable of withstanding large deformation and pulling, ideal for making pipes and tools.

Easy Fabrication: Can be easily cut, drilled, and welded for general structure and frame making.

Multiple Material Options: Available in Q235B, Q345B, S235JR, S355JR, SS400, and other low carbon steel grades.

Efficient Delivery: Fast delivery within 3-15 working days after receiving deposit or L/C.

Strict Quality Control: 100% inspection including visual and function checks with full raw material traceability.

Flexible Payment Terms: Supports T/T, L/C, PayPal, Western Union, and Credit Insurance for secure transactions.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceIn-stock CapacityQuality Assurance

Shanghai Changzeng Metal Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2016-01-13Nearest Port: Shanghai Port, Tianjin Port, Qingdao PortAverage Response Time: ≤3.10hTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryThe supplier is a Shanghai-based trading company that also identifies as a manufacturer/factory, with 19 years of export experience and 90% of sales from exports. It offers broad customization from samples, designs, and full-custom requirements, and reports standardized finished-product inspection instructions and quality assurance. However, the available information shows no new products in the past year, no ODM, SDK, overseas agents, overseas warehouse, showroom, or offline trade-show participation. Corrective/preventive action and complaint-handling procedures are undocumented, while supplier-service assessment procedures and approved supplier records are absent. Financial operating figures provided are zero, but their interpretation is not independently verifiable from the slices. Customer cases and certifications are not provided.

Supplier typeThe supplier is described as a trading company in Shanghai and is also identified as a Trading Company, Manufacturer/Factory. This indicates a mixed trading and manufacturing business classification, but the slices do not establish the scale or scope of its own production facilities.

After-Sales capabilityThe supplier reports in-stock service capacity and lead times within 15 working days in both peak and off-seasons. However, it has no overseas warehouse, overseas showroom, overseas agents or branches, and no written procedures or records for complaint handling or corrective and preventive actions, limiting evidence of a structured after-sales system.

Financial creditThe provided financial fields report zero operating revenue, profit, margins, current ratios, and cash outflows for the stated periods, while the supplier is listed as a limited company with registered capital information. These reported operating indicators provide explicit evidence of weak financial performance, although the slices do not explain the data quality or accounting context.

R&D capabilityThe supplier reports no new products in the past year, no ODM service, and no available SDK. These statements directly indicate limited demonstrated recent product-development and technical innovation capability.

Production capacityThe supplier is classified as both a trading company and manufacturer/factory, has in-stock capacity, and reports standardized instructions for finished-product inspection and quality assurance. Nevertheless, outsourcing procedures and manufacturing-capacity contract status are unknown, and only one quality assurance/quality control inspector is reported, so production depth cannot be fully confirmed.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization in both design-service and R&D-related descriptions. This is direct evidence of broad customization coverage, although it does not quantify engineering resources or production limits.