What certifications does the factory have?

We hold ISO9001, ISO/TS16949, CE Mark, JIS MARK, KS MARK, and Special Equipment Manufacturing License.

What are the mechanical properties of AISI 1215?

Yield strength ranges from 230-550 MPa, tensile strength from 370-650 MPa, with elongation of 7% minimum.

How are the steel bars packed?

Bars are bundled, securely metal strapped in 3 places, and tagged properly. Plastic bags or pallets available for further processing.

Premium Polished Round Bar with Precision Diameter Tolerance

Name: Premium Polished Round Bar with Precision Diameter Tolerance
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 740061312

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$950.00-1,200.00

10 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS, GB, BS, Custom-Made

Model NO.

steel bar

Composition

1215

Technique

Cold Drawn

Shape

Bar

Surface Treatment

Bright/Grind

Special Use

Free Cutting Steel, Axis of Electroplating

Application

Cutting Material

Straightness

0.015mm/M-0.02mm/M

Concentricity

0.005-0.01

Transport Package

Exporting Packing or According to Your Special Re

Specification

dia: 4.5mm-150mm

Trademark

dajin

Origin

Shandong

Production Capacity

1000tons/Month

Key features

Precision Tolerance Options: Size tolerance h9, h10, h11 or custom tolerance according to client requirements.

Customized Straightness: Straightness adjustable from 0.015mm/M to 0.02mm/M based on client needs.

High Machinability: AISI 1215 low carbon steel offers high and consistent machinability for heavily machined components.

Multiple Surface Finishes: Available in Bright Drawn, Smooth Turned, Turned & Polished, and Centreless Ground finishes.

Wide Size Range: Round bars 5mm-130mm, Square 6x6mm-100x100mm, Flat 3mmx20mm-50mmx100mm, Hex 6mm-100mm.

Fast Delivery: 7-10 days for stock items, 30 days for new material orders after confirmation.

Comprehensive Testing: Includes Spectral, Microstructure, Hardness, Macrostructure, and UT tests.

ISO and CE Certified: Certified with ISO9001, ISO/TS16949, CE Mark, JIS MARK, and KS MARK.

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.