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High-Quality 5140 C45 4140 B7 Round Alloy Steel Bar2.
US$700.00-900.00
10 Tons
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableType
RoundStandard
AISI, ASTM, DIN, JIS, GBModel NO.
steel barComposition
Alloy SteelTechnique
Cold DrawnShape
BarSurface Treatment
PolishedSpecial Use
Cold Heading Steel, Free Cutting Steel, Mold SteelApplication
Structural Steel BarCold Drawn Steel Bar Tolerance
H9,H10,H11,Cold Drawn Steel Bar Surface
Bright Surface,Smooth,ShinnyCold Drawn Steel Bar Length
1m-6mAnti-Rust Oil
YesTransport Package
Anti-Rust PackagingSpecification
diameter: 10mm-130mmTrademark
customizedOrigin
ShandongProduction Capacity
2000tonsKey features
Wide Standard Compliance: Meets AISI, ASTM, DIN, JIS, and GB standards for global compatibility.
Customizable Tolerances: Available in H9, H10, and H11 tolerance grades for precision requirements.
Flexible Surface Options: Offers Bright, Smooth, and Shiny surface finishes for various applications.
Customizable Lengths: Lengths adjustable from 1m to 6m to suit specific project needs.
Anti-Rust Protection: Comes with anti-rust oil coating for enhanced corrosion resistance.
High Mechanical Strength: Tensile strength min 980MPA and yield strength min 785MPA for durability.
Comprehensive Heat Treatment: Options include Normalizing, Annealing, and Quenching plus Tempering.
Fast Delivery for Stock Items: Stock items delivered within 7-10 days after order confirmation.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-03-04Nearest Port: Qingdao port, Tianjin port, Shanghai portAverage Response Time: ≤7.47hTerms 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.
Product Q&A
Q:What standards does the steel bar comply with?
A:
The steel bar complies with AISI, ASTM, DIN, JIS, and GB standards.
Q:What are the available tolerance grades?
A:
Available tolerance grades include H9, H10, and H11.
Q:Can the surface finish be customized?
A:
Yes, options include Bright, Smooth, and Shiny surfaces.
Q:What is the delivery time for stock items?
A:
Delivery time for stock items is 7-10 days.
Q:Is anti-rust oil provided?
A:
Yes, the product comes with anti-rust oil.
Send Inquiry
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Shandong Dajin Metal Material Co., Ltd.
Shandong Dajin Metal Material Co., Ltd.*Content:
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