How long will it take to execute my order?

Our normal time to execute the order is 20-30 working days. We will feedback estimated lead time after advance payment ASAP

Do you have inspection for the products before packing?

Of course, we put the quality as our first priority.

What are the packing details?

We choose suitable package and reinforce for various steel products when loading and transport. Meanwhile, we can pack the products according to your requirements.

Do you provide after-sale service?

Of course, we provide the after-sale service.

High Carbon Extra-Hard Spring Steel Coil for Rolling Shutter

Name: High Carbon Extra-Hard Spring Steel Coil for Rolling Shutter
Brand: Jiangxi Rongchengjie Special Materials Co., Ltd.
SKU: 1980678681

Jiangxi, ChinaJiangxi Rongchengjie Special Materials Co., Ltd.

US$920.00-1,850.00

1 Ton

Product specifications

Thickness

Width

Sample price:US$0.00/piece.Request sample

Product profile

Warranty

3 Months

Standard

JIS, GB, DIN

Certification

ISO

Surface Treatment

Polished

Technique

Cold Rolled

Application

Hot Treatment Spring Steel Strip

Edge

Slit edge

Stock

Not Stock

Transport Package

as Your Request

Specification

0.20-4.0mm x 20-500mm

Trademark

RONGCHENGJIE

Origin

China

Key features

Wide Range of Steel Grades: Produces various grades including 75Cr1, SK85, 65Mn, 6150M, and high-carbon spring steels for diverse applications.

Advanced Production Equipment: Equipped with KF750A 20-roll Sendzimir mill, hydraulic AGC mills, and convection box furnace with 95% hydrogen protection.

Flexible Customization Options: Offers minor customization for thickness (0.1-10.0mm), width (20-650mm), surface finish, and packaging requirements.

Comprehensive Quality Assurance: Strict inspection before packing with 5 QA/QC inspectors, mill test certificates available, and ISO certification.

Versatile Surface Treatments: Provides polished, bright, blued, and yellowed finishes on cold-rolled, annealed, and heat-treated steel strips.

Fast Order Execution: Normal lead time is 20-30 working days, with estimated times provided ASAP after advance payment.

Free Sample Testing: Free samples available for testing purposes, with customer only responsible for freight costs.

Company profile

Patents AwardedSelf-brandedExhibition ExperienceImporters and Exporters

Jiangxi Rongchengjie Special Materials Co., Ltd.

Jiangxi, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Minor Customization CertifiedExport Year: 5 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.45h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier demonstrates established manufacturing and export activity, with four production lines, five years of export experience, and stated procedures for service capability, corrective actions, complaints, and finished-product inspection. Its service infrastructure is limited: it reports no overseas warehouse, showroom, agent, or branch, and offers services in zero overseas countries. Product development is also limited to minor customization, with no 3D design, ODM, SDK, or new-product activity reported. ISO9001:2015 certification and fire-drill practice are stated, but no environmental impact assessment report is available. Financial information is inconsistent across the provided records and is not sufficient for a reliable credibility assessment. No specific customer cases or product/service keywords are provided.

Supplier typeThe supplier appears to be a manufacturing supplier operating equipment including slitting, annealing, cold-rolling, packing, quenching, grinding, bending, and straightening machinery. It has four production lines and five years of export experience, although the company description does not identify a specific product category.

CertificationsThe supplier states that it holds an ISO9001:2015 certificate and other certifications. However, it also states that no factory environmental impact assessment report is available, so the evidence supports quality-system certification but not comprehensive environmental documentation.

After-Sales capabilityThe supplier has written procedures and records for service-capability assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent, or branch, and services in zero overseas countries, indicating documented service processes but limited overseas service coverage.

R&D capabilityThe supplier reports no 3D software design service, no new products during the past year, no ODM service, and no available SDK. These explicit limitations indicate weak documented innovation and product-development capability.

Production capacityThe supplier lists multiple manufacturing facilities and four production lines, and it has standardized instructions for finished-product inspection. However, it does not continuously reconcile quantities for each batch or production lot, indicating a production-control weakness despite established manufacturing capacity.

Customization capabilityCustomization is explicitly limited to minor customization in both design and R&D-related services. The supplier does not provide 3D software design or ODM services, so it can support limited modifications but not broad or advanced customization.

Product Q&A

Q:How many countries have you exported to?

Our main business is domestic currently. However, we are looking forward to conducting international business. We have already exported to several countries like Russia, Indonesia, Singapore, etc.

Q:Can I visit your factory before placing an order?

Sure, we are happy to be visited.

Q:Can you provide a mill test certificate?

Mill Test Certificate are available

Q:How can I get your price list?

Please send the order information - Quantity, Specification (steel type,thickness, width, surface finish) to our email, then you will get the price list.

Q:Can I get a sample for testing?

Free samples, you just need to pay the freight.