Can you provide custom packaging for export?

Yes, we offer standard seaworthy packing as well as customized packaging solutions to meet your specific shipping and handling requirements.

What are the main applications for these forged steel bars?

They are ideal for statically and dynamically stressed components in vehicles, engines, and machines, particularly for larger cross-section parts like crankshafts and gears.

Forged 4140 Shaft for Precision Machining in Sugar Mills

Name: Forged 4140 Shaft for Precision Machining in Sugar Mills
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 2182645102

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$700.00-900.00

10 Tons

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS, GB

Model NO.

steel bar

Composition

Alloy Steel Bar

Technique

Forged

Shape

Bar

Surface Treatment

Black Surface or Rough Machine

Special Use

Free Cutting Steel, Mold Steel

Application

Structural Steel Bar

Supply Condition

Hot Forged or Qt

Forged Shaft

Rough Machine

Main Material

Carbon or Allloy

Main Grade

4140 4340 4150 4145 8620

Cutting Service

Yes

Forging Rings

Yes

Transport Package

Seaworth Packaging

Specification

200mm-1000mm

Trademark

Shandong

Origin

China

Production Capacity

2000tons

Key features

Premium 4140 Alloy Steel: High-strength forged round bars engineered for precision machining and demanding industrial applications.

Wide Size Range: Available in diameters from 16mm to 1000mm, covering hot rolled and forged supply conditions.

100% Ultrasonic Inspection: Guaranteed quality control via SEP1921-84 GR.3 CLASS C/C standards for defect-free material.

Custom Surface Treatment: Options include black surface, rough machine, peeled, or turned finishes to meet specific needs.

Versatile Heat Treatment: Supports annealing, hardening, normalizing, and tempering to optimize mechanical properties.

Robust Industrial Application: Ideal for statically and dynamically stressed components like crankshafts, gears, and engines.

Flexible Supply Conditions: Choose between hot rolled (16-350mm) or forged (200-1000mm) based on your project requirements.

Seaworthy Packaging: Standard or customized packing ensures safe delivery for international shipping logistics.

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.

Product Q&A

Q:What are the available sizes for these forged steel bars?

We offer round dimensions ranging from 16mm to 1000mm in diameter. Sizes 16mm-350mm are typically hot rolled, while larger sizes from 200-1000mm are forged.

Q:What surface treatment options are available?

Customers can choose from black surface, rough machine, peeled, or turned finishes. Custom surface treatments are also available upon request.

Q:What is the delivery time for orders?

The standard delivery time is 30 days after order confirmation. During the off-season, lead time is within 15 workdays, while peak season may take one month.

Q:Is quality inspection guaranteed for these products?

Yes, we provide 100% Ultrasonic Inspection in line with SEP1921-84, GR.3 CLASS C/C standards to ensure material integrity and performance.

Q:What payment terms do you accept?

We accept LC, T/T, D/P, and Western Union. International commercial terms include FOB, CFR, CIF, FAS, DDP, CPT, FCA, and EXW.