What payment terms are accepted?

We accept T/T (Telegraphic Transfer) or L/C (Letter of Credit).

What certifications does the mill hold?

Our mill holds ISO9001, ISO/TS16949, ISO4001, OHSAS18001, CE, and JIS/KS marks.

What quality tests are performed on the steel?

We perform spectral testing, microstructure testing, hardness tests, and 100% UT tests.

Premium SAE4140 Ck45 S45c C35 Forged Steel Round Bars

Name: Premium SAE4140 Ck45 S45c C35 Forged Steel Round Bars
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 731978332

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, BS

Model NO.

forged steel bar

Composition

Alloy Steel or Carbon Steel

Technique

Forged

Shape

Bar

Surface Treatment

Black Surface or Rough Machining

Special Use

Cold Heading Steel, Mold Steel

Application

Machine Parts/Shaft

Main Grade

4140 1045 Ck45 A105 4150 4340 8620 etc.

Heat Treatment

Qt/Normalized/Annealing

Ready Stock Grade

4140 1045

Delivery Time of New Bars

30days

Dia Tolerance

-0/+0.5mm

Cutting Service

Yes

Transport Package

Seaworthy Pacakging

Specification

200mm-1000mm

Trademark

Shandong

Origin

China

Production Capacity

5000tons

Key features

Wide Grade Selection: Available in 4140, 1045, Ck45, A105, 4150, 4340, 8620 and other main grades.

Flexible Heat Treatment: Options include Quenching, Normalizing, and Annealing to meet specific requirements.

Custom Cutting Service: We provide cutting services to match your specific size needs.

Fast Stock Delivery: Delivery time is only 7 days for items available in ready stock.

High Precision Tolerance: Diameter tolerance is controlled within -0/+0.5mm for precision applications.

Comprehensive Certification: Certified with ISO9001, ISO/TS16949, CE Mark, and JIS/KS Marks.

Robust Quality Control: 100% UT test, spectral analysis, and microstructure testing ensure quality.

Versatile Applications: Ideal for vehicle parts, engines, machine shafts, crankshafts, and gears.

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: ≤8.06hTerms 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.