What is the minimum order quantity?

The minimum order quantity is 100 Kgs.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

Is customization available?

Yes, we offer customization from samples and designs, including size, grade, and surface treatment.

Long Service Life Custom A193 B7 Hot Rolled Round Bar for Gear Transmission

Name: Long Service Life Custom A193 B7 Hot Rolled Round Bar for Gear Transmission
Brand: Jiangsu Changchen Materials Co., Ltd.
SKU: 2152004432

Jiangsu, ChinaJiangsu Changchen Materials Co., Ltd.

US$510.00

1-49 Tons

US$500.00

50+ Tons

Product profile

Customization

Available

Type

Alloy Steel Bar

Standard

AISI

Model NO.

Special Alloy Steel Bars

Technique

Hot Rolled

Application

Structural Steel Bar, Tool Steel Bar, Die Steel Bar

Surface Treatment

Polished

Alloy

Special Use

Mold Steel, Free Cutting Steel, Cold Heading Steel

Product Name

Special Alloy Steel Bars

Size

6-300mm

Length

1m -9m

Grade

Grade B/X42/X52/X60/X70 L245/L290/S320/L360/L390

Applications

Machinery, Refinery, Petrochemical

Transport Package

International Standards

Specification

Standard Specifications or Customized

Trademark

CHANGCHENG

Origin

Jiangsu, China

Production Capacity

300000tons/Year

Key features

Customizable Dimensions: Diameter 6-300mm and length 1-12m, tailored to specific project needs.

Wide Material Selection: Includes ASTM A36, 1020, 4140, 4340, H13, and other carburizing alloys.

Advanced Heat Treatment: Supports carburizing, quenching, tempering, and nitriding for superior performance.

International Compliance: Manufactured per ASTM, DIN EN, GB, JIS, and ISO standards.

Quality Certification: ISO9001, CE, and SGS certified with third-party inspection acceptance.

Professional Packaging: Waterproof, rust-proof packaging on wooden pallets for safe transport.

Logo Customization: Supports custom logo, color, and appearance size modifications.

High Strength & Wear Resistance: Engineered for superior strength, wear resistance, and extended fatigue life.

Company profile

Fast DeliveryManagement CertificationR&D CapabilitiesQA/QC Inspectors

Jiangsu Changchen Materials Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.27h

AI-Powered supplier vetting

SummaryChangchen operates in metal materials, special steel, forgings, powder metallurgy, metal processing machinery, and cutting services. It reports customization from samples and designs, ODM availability, recent new-product development, CAD/PS-related R&D capability, and documented R&D inputs, outputs, reviews, verification, and validation. Production-related evidence includes valid contracts with associated subcontractors, inventory capability, raw-material traceability, and 100% finished-product inspection; however, only one quality inspector is reported. The supplier states that products can meet several national and international standards, but no specific certifications are identified. Overseas support is limited: there are no overseas agents or branches, warehouses, showrooms, or stated overseas service countries. Lead time is reported as within 15 working days in both peak and off-season. Financial information is insufficient for a reliable assessment, and no customer cases are provided.

Supplier typeThe supplier’s stated business scope covers sales of metal materials and products, special steel, forgings, powder metallurgy products, recycled resources, metal-processing machinery, and metal cutting services. This supports classification as a metal-material and metal-processing supplier, although the slices do not establish a more specific legal or manufacturing classification.

R&D capabilityThe supplier reports new products during the past year, R&D responsibilities covering new-product development, design drawings, production technical support, and customer specifications, plus CAD and PS software capability. It also has auditable R&D design-input, output, review, verification, and validation documentation, although no SDK is available.

Production capacityProduction-related evidence includes sawing and cutting equipment, metal cutting and processing activities, inventory capability, valid manufacturing contracts with associated subcontractors, raw-material traceability, and 100% finished-product inspection. The reported quality-control staffing is one inspector, while supplier-management procedures have no records, so capability is supported but operational depth is limited.

Customization capabilityChangchen explicitly provides customization from samples and designs, offers ODM services, and states that customized services can be developed according to customer requirements. Its R&D role includes preparing product specifications for customer approval, providing direct evidence of customer-oriented customization capability.

Product Q&A

Q:Are you a factory or a trader?

We are a manufacturer integrating industry and trade. Welcome to visit our company.

Q:Can I add my LOGO to the product?

We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.

Q:What payment methods do you support?

We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.

Q:What are your modes of transportation?

We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.

Q:How can I get an accurate quotation?

You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.