What certifications does the company hold?

The company holds ISO 9001, ISO 14001, ISO 45001, ACRS, IKRAM QA, and JIS G 3536 certifications.

What are the typical applications for this wire?

It is ideal for pre-stressed concrete railway sleepers, concrete plates, pipes, and major water diversion projects.

Plain Round Wire & Pccp Steel Wire GB/T5223, Astma421

Name: Plain Round Wire & Pccp Steel Wire GB/T5223, Astma421
Brand: SILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. TIANJIN
SKU: 1970673865

Tianjin, ChinaSILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. TIANJIN

US$799.00-999.00

25 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Application

to Manufacture Prestressed Concrete Products

Function

Strengthen

Standard

Astma421, Astma648, BS5896, GB/T5223

Model NO.

4.0mm-8.0mm

Technique

Drawn Wire

Tensile Strengh

1570MPa, 1670MPa, 1770MPa, 1860MPa

Cross Sectional Shape

Circular

Surface

Smooth Surface

Export Packing

Baling Strip, Plastic Cover, PP Packing Cloth

Weight

0.8-2.5mt Per Coil

Certification

CCC, CE, ISO

Type

Special Steel Wire

Material

High Carbon Rod

Transport Package

Standard Export Packing

Specification

4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm

Trademark

Silvery Dragon or as customer required

Origin

China

HS Code

7326201000

Production Capacity

400, 000mt/Year

Key features

High Tensile Strength: Up to 1960MPa for heavy-duty applications in pre-stressed concrete.

Wide Diameter Range: Available from 4.0mm to 12.0mm for various construction needs.

Global Standard Compliance: Meets GB/T5223, ASTM A421, BS5896, and other international standards.

Proven Project Track Record: Supplied over 1.2 million tons to major water diversion projects.

High Production Capacity: Annual capacity of 400,000 metric tons ensures consistent supply.

Certified Testing Center: ISO/IEC 17025 accredited lab guarantees product reliability.

Customizable Specifications: Trademark and technical specs tailored to specific project requirements.

Company profile

SILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. TIANJIN

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 1998-05-01 CertifiedNearest Port: Tianjin PortAverage Response Time: >24h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummarySilvery Dragon Prestressed Materials Co., Ltd. Tianjin is a China-based public company established in 1998, with 276 employees and a Tianjin manufacturing location. The supplier reports more than 10 production lines and annual output of 420,000 tons of PC wire, 220,000 tons of PC strand, and 10,000 tons of PC bar. It holds ISO9001:2015 and ISO14001:2015 certifications and describes substantial R&D activity, technology-center resources, and cooperation with research institutions and universities. Export activity began in 1998, with 41%–50% of sales reportedly from exports. Evidence is insufficient to assess after-sales service, financial credibility, customization capability, or customer cases.

Supplier typeThe supplier is identified as a public company based in Tianjin, China, established in 1998. Its stated focus is the research and production of prestressed concrete steel materials and railway track concrete products, with additional listed activities including automation equipment and engineering-management information systems.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates, along with other unspecified certifications. This provides direct evidence of certified quality and environmental management systems.

R&D capabilityThe supplier reports dozens of R&D projects annually, a national laboratory and technology center, cooperation with the China Academy of Railway Sciences and universities, independent innovation capability, and an inventor role in spiral drawing models and spiral ribbed prestressed steel wire. These statements directly support a strong innovation profile.

Production capacityThe supplier reports more than 10 production lines and annual capacities of 420,000 tons of PC wire, 220,000 tons of PC strand, and 10,000 tons of PC bar. It also states that total annual production capacity exceeds 650,000 tons and that it operates five production bases across China, indicating substantial production scale.