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Premium Quality Forged Steel Round Bar 4140 42CrMo4
US$800.00-1,000.00
2 Tons
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableType
RoundStandard
AISI, ASTM, DIN, JISModel NO.
alloy steel barComposition
Ferrous Steel ScrapTechnique
ForgedShape
BarSurface Treatment
Rough MachiningSpecial Use
Roller ShaftApplication
Structural Steel BarMaterial
Alloy Steel BarMain Grade
SAE4140 4145 4150 Scm435 Scm440 42CrMo4 1.7225Supply Condition
Forged Steel BarSurface
Black or Bright SurfaceOther Type
Forged Parts, Forging RingTransport Package
Anti-Rust PackagingSpecification
200-800mmTrademark
dajinOrigin
ChinaProduction Capacity
2000Key features
Wide Size Range: Round bars available from Dia. 16mm to 1000mm for various structural needs.
Multiple Grade Options: Supply includes SAE4140, 4145, 4150, Scm435, Scm440, and 42CrMo4.
Precision Quality Control: 100% Ultrasonic testing ensures precision adhering to SEP1921-84 standards.
Custom Surface Treatment: Options include black, bright, peeled, or turned surfaces based on requirements.
Versatile Applications: Ideal for crankshafts, gears, and statically/dynamically stressed components.
Flexible Delivery: Standard seaworthy packaging or customized as per customer requirements.
Advanced Manufacturing: Utilizes EAF+LF+VD processes with optional heat treatment and machining.
Fast Lead Time: Delivery within 30 days after order confirmation; off-season within 15 workdays.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-03-04Nearest Port: Qingdao port, Tianjin port, Shanghai portAverage Response Time: ≤10.14hTerms 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 are the available sizes for the forged steel round bar?
A:
Available sizes range from Dia. 16mm to 1000mm. Specifically, 16mm-350mm is available with hot rolled supply condition, while 200-1000mm is available with forged supply condition.
Q:Which steel grades can you supply?
A:
We supply a vast selection including 4140, 4145, 4150, Scm435, Scm440, 42CrMo4, 1.7225, and 4340 forged steel bars.
Q:What is the delivery time for orders?
A:
The standard delivery time is 30 days after order confirmation. During the off-season, lead time is within 15 workdays.
Q:What surface treatments are available?
A:
We offer black or bright surfaces. Additionally, peeled or turned surfaces are available as optional processes.
Q:What quality inspection standards are followed?
A:
We ensure precision with 100% Ultrasonic testing, adhering to standards such as SEP1921-84 and GR.3 CLASS C/C.
Send Inquiry
*To:
Shandong Dajin Metal Material Co., Ltd.
Shandong Dajin Metal Material Co., Ltd.*Content:
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