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Superior Forged Round Bar C45 4140 for Metalworking Needs
US$600.00-900.00
10 Tons
Product profile
Customization
AvailableType
RoundStandard
AISI, ASTM, DIN, JIS, GBModel NO.
forged steel barComposition
Alloy Steel or Carbon SteelTechnique
ForgedShape
BarSurface Treatment
Rough Machine/Black Surface/Lath MachineSpecial Use
Cold Heading Steel, Mold SteelApplication
Heavy Duty MachineReady Stock
YesMain Grades
C45 SAE1045 45# 4140 Scm440 42CrMo4 4130 4150 4340Heat Treatment
Qt/Normalized/AnnealingSize Tolerance of Rough Machine
-0/+0.5mmCutting
YesFactory Visiting
WelcomeUt Level
Sep1928 D/D or C/CTransport Package
Seaworthy PacakgingSpecification
200mm-1000mmTrademark
ShandongOrigin
ChinaProduction Capacity
5000tonsKey features
Wide Grade Availability: Offers C45, 4140, 4130, 42CrMo4, and more alloy and carbon steel grades.
Extensive Size Range: Round bars from 10mm to 1000mm diameter; flat bars up to 2200mm width.
Custom Heat Treatment: Available in QT, Normalized, or Annealed states as per customer request.
Precision Cutting: Each bar is precision-cut at both ends to ensure uniformity and quality.
High Purity Steel: Advanced ladle furnace and vacuum de-gassing for optimal steel purity.
Full Traceability: Heat number prominently displayed on each bar for easy traceability.
100% Ultrasonic Inspection: Inspected according to SEP1921-84, GR.3 CLASS C/C standards.
Fast Stock Delivery: 7 days delivery time for ready stock items.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-03-04Nearest Port: Qingdao port, Tianjin port, Shanghai portAverage Response Time: ≤10.33hTerms 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 steel grades are available?
A:
We supply C45, 4140, 4130, 42CrMo4, SCM440, SCM435, ASTM A36, S20C, S45c, and other alloy or carbon steel grades.
Q:What are the available sizes?
A:
Round bars range from 10mm to 1000mm diameter. Flat bars range from 10mm to 120mm thickness and 305mm to 2200mm width.
Q:Can the heat treatment be customized?
A:
Yes, heat treatment options include QT (Quenching and Tempering), Normalized, and Annealing as per customer request.
Q:What is the delivery time for stock items?
A:
The delivery time for stock items is 7 days, while new material orders typically take 30 days.
Q:How is the steel quality inspected?
A:
We perform 100% ultrasonic inspection according to SEP1921-84, GR.3 CLASS C/C standards.
Send Inquiry
*To:
Shandong Dajin Metal Material Co., Ltd.
Shandong Dajin Metal Material Co., Ltd.*Content:
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