Which standards do your products comply with?

We comply with ASTM, AISI, GB, JIS, DIN, and BS standards.

Do you have stock available for immediate delivery?

Yes, we maintain over 20,000 tons of stock in Wuxi and Dongguan.

4140 1045 4340 Hot Rolled Normalized Alloy Steel Bars Suppliers China

Name: 4140 1045 4340 Hot Rolled Normalized Alloy Steel Bars Suppliers China
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 878796965

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

US$700.00-1,200.00

1 Ton

Product profile

Customization

Available

Type

Steel Plate

Standard

ASTM, AISI, GB, JIS, DIN, BS

Model NO.

4140 Alloy Steel Suppliers China

Certification

ISO, RoHS, IBR

Surface Treatment

Blackface

Technique

Hot Rolled

Application

Mold & Dies, Ship Plate, Boiler Plate, Container Plate, Flange Plate

Special Use

Cutting Tools, Measuring Tools, Cutters in Common Steel, High-strength Steel Plate, Wear Resistant Steel

Stock

Model No.

AISI 4140 Hot Rolled Round Bar Alloy Steel

Factory

Yes

Form

Round Bars/ Flat Bar / Blocks/ Tube

Process

Eaf+Lf+Vd+Forged+Heat Treatment(Optional)

Technology

Hot Rolled/ Forged/ Cold Drawn

Heat Treatment

Normalized;Annealed ;Quenched ;Tempered

Surface

Black; Peeled; Polished; Machined; Grinded; Turned

Test

Ensile Strength, Yield Strength, Elongation

Certificate

ISO/ Mill Certificate

Experience

15 Years Manufacturer Experience

Usage

Automotive, Aerospace, Power Generation, Oil & Gas

Service

24 Hours on Line

Other Type 1

Engineering Steel, Cold Work Tool Steel

Other Type 2

Hot Work Tool Steel, Plastic Mold Steel

Other Type 3

Spring Steel, High Speed Steel, Stainless Steel

Transport Package

Bulk Packing

Specification

ISO 9001-2000

Trademark

Qilu

Origin

China

HS Code

7214100000

Production Capacity

500, 000tons/Year

Key features

Extensive Steel Variety: Offers Alloy, Carbon, Stainless, High Speed, Spring, and Forged Steels with multiple standards.

Customizable Dimensions: Round bars from 8-1200mm diameter; plates from 10-800mm thickness and 20-2000mm width.

Flexible Heat Treatment: Options include Normalized, Annealed, Quenched, and Tempered processes.

Multiple Surface Finishes: Available in Black, Peeled, Polished, Machined, Grinded, Turned, and Milled conditions.

Large Stock Capacity: Over 20,000 tons of steel available in Wuxi and Dongguan warehouses.

Heavy Forging Capability: Maximum piece weight up to 50 tons with 800t to 4500t forging units.

Comprehensive Testing: Includes Tensile, Yield, Elongation, Hardness, Ultrasonic, and Magnetic Particle testing.

Global Export Experience: 11 years of exporting experience with customers in Europe, Americas, Asia, and Africa.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryLow MOQ

HUNAN QILU INDUSTRIAL CO., LTD.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2008-06-01Nearest Port: SHANGHAI, NINGBO, QINGDAOAverage Response Time: ≤3.29hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as HUNAN QILU INDUSTRIAL CO., LTD., a China-based limited company with conflicting classifications as both a trading company and manufacturer/factory. It has broad steel-related business activities, extensive stated export markets, self-operated import/export rights, and eight years of export experience. Customization, ODM, and OEM capabilities are explicitly reported. However, service-management documentation is absent, including supplier approval, corrective-action, and complaint-handling procedures. No in-stock, overseas warehouse, showroom, agent, or branch capability is reported. Financial records are referenced for 2021–2023, but no substantive financial performance evidence is provided. Production volumes and staffing are stated, although the supplier’s trading-company classification creates uncertainty regarding direct manufacturing capacity. No certifications or customer cases are documented.

After-Sales capabilityThe supplier reports no written procedures or records for service-capability assessment, corrective and preventive actions, or customer-complaint handling. It also reports no in-stock service, overseas warehouse, showroom, agent, or branch capability, although lead times are stated as one month in both peak and off-season periods.

R&D capabilityThe supplier reports total R&D-engineer experience of 6–10 years and offers ODM services, indicating some design and development capability. However, it has no available SDK, and the slices do not provide concrete innovation outputs, patents, or product-development records.

Production capacityThe supplier states production categories covering cold-drawn material, steel round bar, steel plate, and steel pipe, with substantial annual output figures and 11–20 quality-control staff. However, its classification as both trading company and manufacturer/factory is inconsistent, so the extent of directly controlled production capacity requires verification.

Customization capabilityFlexible customization is explicitly reported, together with ODM service availability and OEM service for popular brands. These statements provide direct evidence of customization and outsourced-brand production capability.