What surface treatments are available?

Options include hot rolled black surface, peeling, turning, grinding, milling, drilling, and boring.

What is the chemical composition of S45C steel?

S45C typically contains C: 0.42-0.48%, Si: 0.15-0.35%, Mn: 0.60-0.90%, with max S and P of 0.035%.

SAE1020 1045 1035 Carbon Steel Mild Round Bar Square Bar

Name: SAE1020 1045 1035 Carbon Steel Mild Round Bar Square Bar
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 736689522

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$600.00-700.00

10 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS, GB

Model NO.

steel bar

Composition

Carbon Steel Bar

Technique

Hot Rolled

Shape

Bar

Surface Treatment

Hot Rolled Black Surface

Special Use

Cold Heading Steel, Free Cutting Steel

Application

Structural Steel Bar

Ready Stock of S45c

Yes

Main Grade

S45c Ss400 S20c SAE1020 4140

Length

5800mm/6000mm

Transport Package

Bundle by Wire Rod

Specification

Diameter: 16mm-310mm

Trademark

customized

Origin

China

Production Capacity

5000tons

Key features

Ready Stock Availability: Large inventory of S45C, S20C, and SAE1045 bars for immediate delivery.

Wide Size Range: Round bars 10-350mm, square bars 16-100mm, and flat bars available.

Strict Quality Control: Includes spectral, microstructure, hardness, and UT tests for assurance.

Multiple Processing Options: Offers hot rolled, cold drawn, peeled, turned, and heat treated finishes.

Competitive Pricing: Government quality steel bars offered at competitive market prices.

Fast Delivery Time: 7-10 days for stock items; 30 days for new material orders.

International Certifications: ISO9001, ISO/TS16949, CE Mark, JIS Mark, and KS Mark certified.

Free Sample Service: Free steel bar samples available for quality verification before order.

Company profile

Shandong Dajin Metal Material Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2017-03-04Nearest Port: Qingdao port, Tianjin port, Shanghai portAverage Response Time: ≤8.73hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FAS, DDP, CPT, FCA, EXW

AI-Powered supplier vetting

SummaryShandong Dajin Metal Material Co., Ltd. is identified as a Chinese manufacturer/factory based in Shandong, with four production lines, stated production capacities for several steel-bar categories, and export activity across multiple regions. It holds ISO 9001 and OHSAS/OHSMS 18001 certifications and states that it can supply multiple international standards and customized steel products. The supplier reports export activity since 2017 and that exports represent 51%–70% of total sales. Evidence supports production scale, certification, customization, and international trading capability. However, the provided information does not sufficiently establish after-sales service processes, innovation capability, or financial credibility. Trade records show named buyers and shipments involving Brazil and Pakistan, but the limited transaction evidence does not establish broad or sustained customer performance.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and operates as Shandong Dajin Metal Material Co., Ltd., a limited company located in Shandong, China. This directly supports its status as a manufacturing supplier rather than only a trading entity.

CertificationsThe supplier reports holding ISO 9001 and OHSAS/OHSMS 18001 management-system certifications. These stated certifications provide explicit evidence of quality-management and occupational health and safety systems, although certificate validity dates and scope are not provided.

Production capacityThe supplier reports four production lines, 11–20 years of total R&D-engineer experience, 11–20 quality-control staff, and substantial stated capacities for steel bar, carbon steel round bar, and cold-drawn steel bar. It also reports ready stock of 1,000–1,500 tons for specified products and exports to multiple global regions, providing explicit evidence of meaningful production and fulfillment capability.

Customization capabilityThe supplier explicitly states that it can provide products to GB, American, German, Japanese, industry, and special steel standards and can offer customized services according to customer requirements. Its listed grades and 5 mm–300 mm size range for certain stocked products further support product configuration flexibility.

Client casesTrade records associate the supplier with named buyers in Brazil and Pakistan and show shipments involving steel-related products through Qingdao, including a recorded transaction count of one for one buyer and two for another. These records provide evidence of actual international customer transactions, but the limited number of documented cases does not establish a broad, long-term, or independently verified customer portfolio.