What is the lead time for orders?

Lead time is within 15 workdays during the off-season and approximately one month during the peak season.

Is ready stock available for this product?

Yes, we maintain ready stock for selected items to ensure faster delivery for urgent requirements.

What payment terms are accepted?

We accept LC, T/T, D/P, and Western Union as terms of payment for international transactions.

Premium ASTM A193 B8m Threaded Rod Made From 4140 Steel

Name: Premium ASTM A193 B8m Threaded Rod Made From 4140 Steel
Brand: Shandong Dajin Metal Material Co., Ltd.
SKU: 2182580902

Shandong, ChinaShandong Dajin Metal Material Co., Ltd.

US$1,050.00

2 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Standard

AISI, ASTM, GB, JIS, ASTM A193 B7 B16,ASTM A320 L7

Technique

Cold Drawn

Model NO.

round bar

Application

B7 L7 B16 Threading Rod

Surface Treatment

Polished

Alloy

Special Use

B7 L7 B16 Studs

Raw Material Grade

4140 B16 304 316 etc.

Quality Level

B7 B8m B16 L7

Ready Stock

Yes

Factory Directly

Yes

Transport Package

Anti-Rust Pacakging

Specification

1/2''-4''

Trademark

dajin

Origin

China

Production Capacity

5000

Key features

ASTM A193 B7 Compliance: Meets strict ASTM A193 Grade B7 chemical and mechanical standards for high-pressure applications.

Q&T Heat Treatment: Quenched and Tempered process ensures uniform hardness and superior mechanical consistency.

Thread-Rolling Ready: Uniform grain structure and h9-h11 tolerances reduce tool wear and facilitate accurate threading.

Full MTR Traceability: Complete Mill Test Reports provided with exhaustive chemical and mechanical verification per heat number.

High Tensile Strength: Minimum tensile strength of 125 ksi (860 MPa) ensures durability in demanding industrial environments.

Export-Ready Packaging: Advanced anti-rust treatment and robust packaging safeguard material integrity during maritime transport.

Custom Raw Materials: Available in 4140, B16, 304, 316 grades to meet specific project requirements.

Ready Stock Availability: In-stock items available for immediate dispatch, reducing lead times for urgent orders.

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: ≤9.25hTerms 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 is the standard compliance for this threaded rod?

The product complies with ASTM A193 Grade B7, as well as AISI, GB, JIS, and ASTM A320 L7 standards.

Q:What is the minimum tensile strength of the material?

The minimum tensile strength is 125 ksi (860 MPa) for sizes 2.5 inches and under, ensuring high durability.

Q:Does the product come with a Mill Test Report (MTR)?

Yes, each order includes a complete MTR with full chemical analysis, heat treatment details, and mechanical test results traceable to the heat number.

Q:What heat treatment process is applied to the steel bars?

The steel bars undergo a Quenched & Tempered (Q&T) process to ensure uniform hardness and mechanical properties throughout the cross-section.

Q:What are the available raw material grades?

We offer customization for raw material grades including 4140, B16, 304, and 316 stainless steel.