Can the surface treatment be customized?

Yes, we offer black, bright, peeled, or turned surfaces. The supply condition can be hot rolled or forged.

What are the main applications for this steel bar?

It is perfectly suited for statically and dynamically stressed components in vehicles, engines, and machines, including crankshafts and gears.

Superior Quality Forged Steel Round Bar 4140 42CrMo4

Name: Superior Quality Forged Steel Round Bar 4140 42CrMo4
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 2182686302

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$800.00-1,000.00

2 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS

Model NO.

alloy steel bar

Composition

Ferrous Steel Scrap

Technique

Forged

Shape

Bar

Surface Treatment

Rough Machining

Special Use

Roller Shaft

Application

Structural Steel Bar

Material

Alloy Steel Bar

Main Grade

SAE4140 4145 4150 Scm435 Scm440 42CrMo4 1.7225

Supply Condition

Forged Steel Bar

Surface

Black or Bright Surface

Other Type

Forged Parts, Forging Ring

Transport Package

Anti-Rust Packaging

Specification

200-800mm

Trademark

dajin

Origin

China

Production Capacity

2000

Key features

Wide Size Range: Round bars available from Dia. 16mm to 1000mm for diverse applications.

Precision Manufacturing: Utilizes CAD, Wire EDM, and Plunge EDM for intricate detail and accuracy.

Strict Quality Inspection: 100% Ultrasonic inspection per SEP1921-84 and GR.3 CLASS C/C standards.

Versatile Heat Treatment: Options include annealing, hardening, normalizing, and tempering for specific properties.

Multiple Grade Options: Supplies 4140, 4145, 4340, SCM440, 42CrMo4, and other alloy steel grades.

Custom Surface Treatment: Available in black, bright, peeled, or turned surfaces based on requirements.

Fast Tooling Changes: Innovative solutions for quick adjustments to minimize downtime and boost productivity.

Seaworthy Packing: Standard or tailored packing ensures safe delivery for international shipping.

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: ≤6.18hTerms 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?

Available sizes range from Dia. 16mm to 1000mm. Specifically, 16mm-350mm with hot rolled supply condition and 200-1000mm with forged supply condition.

Q:What is the delivery time for orders?

Delivery time is 30 days after order confirmation. Peak season lead time is one month, while off-season lead time is within 15 workdays.

Q:What quality inspection standards are used?

We perform 100% Ultrasonic inspection in accordance with stringent test standards: SEP1921-84 and GR.3 CLASS C/C.

Q:What grades of forged steel do you supply?

We supply various grades including 4140, 4145, 4340, SCM440, SCM435, 42CrMo4, 1.7225, and AISI 4140.

Q:What are the payment terms?

Terms of payment include LC, T/T, D/P, and Western Union.