What quality tests are performed?

We conduct spectral, microstructure, hardness, and 100% UT tests per standards.

What certifications does the mill have?

Certifications include ISO9001, ISO/TS16949, CE Mark, JIS Mark, and KS Mark.

Premium Forged Steel Round Bar - Roller Shaft SAE4140 8620

Name: Premium Forged Steel Round Bar - Roller Shaft SAE4140 8620
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 1928832342

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$700.00-900.00

10 Yards

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS

Model NO.

forged shaft

Composition

Carbon or Alloy

Technique

Forged

Shape

Bar

Surface Treatment

Black Surface or Rough Machine

Special Use

Mold Steel

Application

Machinery Parts

Main Grade

SAE4140 42CrMo4 Scm440 1.7225 4145 4150 8620 4340

Supply Condition

Forged with Qt/Normalized

Surface

Black Surface or Rough Machine

Legnth

Fixed Length or Random Length

Vd

Yes

Raw Material

Steel Billet or Steel Ingot

Transport Package

Seaworth Packaging

Specification

200mm-1000mm

Trademark

Shandong

Origin

Shandong

Production Capacity

2000tons

Key features

Multiple Grade Options: Available in SAE4140, 8620, 42CrMo4, SCM440, 1.7225, 4145, 4150, and 4340.

Custom Dimensions: Supply fixed length or random length bars based on client requirements.

Advanced Processing: Production includes EAF, LF, VD, forging, UT, and optional precision machining.

Heat Treatment Options: Optional normalized, annealed, quenched, or tempered treatments available.

Strict Quality Control: 100% UT test, spectral, microstructure, and hardness tests per ISO standards.

Fast Delivery: 7 days for stock items; 30 days for new material orders.

Global Certifications: ISO9001, ISO/TS16949, CE Mark, JIS Mark, and KS Mark certified.

Wide Application: Ideal for vehicles, engines, machines, 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: ≤6.80hTerms 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.