What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

ASME SA193 Grade B7m Stud Bolts with A194 2hm Heavy Hex Nuts.

Name: ASME SA193 Grade B7m Stud Bolts with A194 2hm Heavy Hex Nuts.
Brand: HEBEI HONGCHENG PIPE FITTINGS CO., LIMITED
SKU: 2101755475

Shanghai, ChinaHEBEI HONGCHENG PIPE FITTINGS CO., LIMITED

US$0.50

100 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Grade

Model NO.

A193 B7

Certification

ISO, CE

Customized

Steel Grade

3.6\4.6\4.8\5.6\6.8\8.8\9.8\10.9\12.9

Transport Package

Playwood Box, Wooden Case

Trademark

C&N

Origin

China

Production Capacity

100tons/Month

Key features

Customized Steel Grades: Available in 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9 grades.

High Strength Material: Manufactured from AISI 4140/4142 low Carbon Alloy Steel with UTS 860 MPa min.

Customized Coatings: Options include Xylan 1070/1424, PTFE, Zinc, Cadmium, and Hot-Dip Galvanize.

Strict Quality Control: Every individual B7M bolt requires hardness testing per manufacturing standards.

Wide Size Range: Available in sizes from 1/4" to 6" (M6-M160) for bolts and nuts.

Industry Certifications: Compliant with ISO, CE, ASME, and ANSI standards for high pressure service.

Company profile

Years of Export ExperienceManagement CertificationQuality AssuranceFast Delivery

HEBEI HONGCHENG PIPE FITTINGS CO., LIMITED

Shanghai, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2005-03-16Nearest Port: Tianjin, ShanghaiAverage Response Time: ≤15hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FAS, DDP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryThe supplier is a pipe fitting and flange manufacturer and authorized dealer serving pipeline-related industries. It demonstrates broad customization, OEM and ODM services, 3D software design capability, 13 R&D engineers, and evidence of new products during the past year. Production-related evidence includes hydraulic, EDM CNC cutting, heat-treatment, material-testing, and spectrometer equipment, with documented finished-product inspection procedures. ISO9001:2015, ISO45001:2018, and ISO14001 certifications are reported. Service management procedures cover supplier assessment, corrective and preventive actions, and customer complaints. However, the supplier has no valid manufacturing-capacity contract with associated subcontractors, no overseas warehouse, showroom, agent, or branch, and no SDK. Customer references include named oil, energy, and industrial organizations, but no Fortune 500 cooperation is reported.

Supplier typeThe supplier is described as a pipe fitting and flange company that also acts as an authorized dealer, serving electric power, metallurgy, city gas, heat networks, shipbuilding, and other pipeline engineering applications. This indicates a manufacturer-led industrial supplier with distribution activity.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 management-system certificates. These explicitly demonstrate certification coverage for quality, occupational health and safety, and environmental management.

After-Sales capabilityWritten and followed procedures are reported for service-capability assessment, corrective and preventive actions, and customer complaints. The supplier also reports training and equipment installation services and lead times within 15 working days in both peak and off-season, but lacks overseas warehouses, showrooms, agents, and branches.

R&D capabilityThe supplier reports 3D software design services, ODM capability, 13 R&D engineers, and new products during the past year. It also provides multiple forms of design customization, although no SDK is available.

Production capacityProduction evidence includes hydraulic machinery, EDM CNC cutting, heat-treatment equipment, universal material testing, and direct-reading spectrometer equipment, plus uniformly followed finished-product inspection instructions. The supplier also reports in-stock capability and 10 qualified service-capability suppliers, but lacks a valid manufacturing-capacity contract with associated subcontractors.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports custom design support to ASME VIII, ASME B31.3, and ASME B31 requirements, supported by 3D design services.

Client casesThe supplier names ARAMCO, SADRA, SWCC, PDO, OQ, ADAMA, DOWL, and Sonatrach as clients or organizations whose approval it has received. It reports no Fortune 500 cooperation, so the evidence supports established industrial customer experience but not Fortune 500 coverage.

Product Q&A

Q:What is the difference between A193 Grade B7 and B7M stud bolts?

The main difference is hardness and testing. B7M has a max hardness of 235 HB (99 HRB) and requires individual hardness testing for every bolt. B7 has a higher max hardness of 321 HB (35 HRC) and lower tensile strength for larger diameters.

Q:What materials are used for A193 Grade B7M Stud Bolts?

They are manufactured from AISI 4140/4142 low Carbon Alloy Steel, followed by quenching and tempering to ensure high precision and quality.

Q:What coating options are available for these bolts?

We offer customized coatings including Xylan 1070/1424 (blue PTFE), PTFE, Zinc (White/Yellow/Black), Cadmium, Zinc Nickel, and Hot-Dip Galvanize.

Q:What is the minimum tempering temperature for B7M bolts?

The minimum tempering temperature is 593 degrees Celsius to ensure proper mechanical properties and stress relief.

Q:What are the typical applications for A193 B7M Stud Bolts?

They are used for pressure vessels, valves, flanges, and fittings in high temperature or high pressure services, or other special purpose applications.