Can the packaging be customized?

Yes, we offer standard seaworthy packing or custom packing solutions as required by the customer.

What are the surface treatment options?

Options include Hot Rolled, Peeled, Black Surface, and Annealed finishes depending on the supply condition.

What are the payment terms accepted?

We accept LC, T/T, D/P, and Western Union for international transactions.

4140 Forged Steel Roller Shaft Parts

Name: 4140 Forged Steel Roller Shaft Parts
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 2043922372

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$600.00-900.00

10 Tons

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS, GB

Model NO.

forged parts

Composition

Alloy Steel or Carbon Steel

Technique

Forged

Shape

Bar

Surface Treatment

Rough Machining or Black Surface

Special Use

Cold Heading Steel, Mold Steel

Application

Structural Steel Bar

Ready Stock Grade

1045 4140 Forged Steel Bar

Delivery Time of New Goods

30days

Heat Treatment

Qt/Normalized/Annealing

Rough Machining Diameter Tolerance

-0/+0.5mm

Transport Package

Seaworthy Packaging

Specification

200mm-1000mm

Trademark

Shandong

Origin

China

Production Capacity

5000tons

Key features

High-Strength Alloy Composition: Available in 4140, 4145, SCM440, SCM435, and 42CrMo4 grades with precise chemical control.

Comprehensive Size Range: Round bars available from 16mm to 1000mm diameter in hot rolled or forged conditions.

Advanced Heat Treatment: Options include Soft Annealing, Hardening, Normalizing, and Tempering with specific temperature ranges.

Rigorous Quality Inspection: 100% Ultrasonic Inspection performed according to SEP1921-84 GR.3 CLASS C/C standards.

Versatile Surface Options: Available in Hot Rolled, Peeled, Black Surface, or Annealed conditions based on requirements.

Rapid Delivery Capability: Approximately 30 days delivery time after order confirmation with flexible peak/off-peak scheduling.

Secure Packaging Solutions: Standard seaworthy packing or custom packing available as required by the client.

Wide Application Scope: Ideal for statically and dynamically stressed components in vehicles, engines, and machines.

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.