Can the steel be heat treated?

Yes, it can be supplied in Normalized, Annealed, Quenched, or Tempered conditions. Pre-hardened versions can be further surface hardened.

What is the maximum piece weight available?

The maximum piece weight can reach 50 tons for forging materials and billets.

SAE4340 Steel

Name: SAE4340 Steel
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 880660085

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

SAE4340 Steel

US$1,000.00-2,000.00

1 Ton

Sample price:US$10.00/kg.Request sample

Product profile

Customization

Available

Type

Alloy Steel Bar

Standard

AISI, ASTM, GB, JIS, DIN, BS

Technique

Forged

Application

Tool Steel Bar

Surface Treatment

Polished

Alloy

Special Use

Mold Steel

Length

1000-12000

Transport Package

Bulk Package

Specification

100-1200MM

Trademark

Qilu

Origin

China

HS Code

722840

Production Capacity

500, 000mt/Year

Key features

High Strength & Toughness: Medium carbon low alloy steel with tensile strength 930-1080 Mpa, ideal for highly stressed parts.

Customizable Length: Length can be customized within the range of 1000-12000mm as per customer requirements.

Versatile Processing: Supports machining, welding, bending, and surface hardening via flame, induction, or nitriding.

Wide Size Range: Available in round bars (Dia 6-1200mm), plates, and blocks with thickness up to 500mm.

Strict Quality Testing: Comprehensive tests include tensile, yield, impact, hardness, ultrasonic, and magnetic particle testing.

Large Stock Availability: Over 20,000 tons of ex-stock available in Wuxi and Dongguan for quick delivery.

Professional Manufacturing: Manufacturer with 50t electric arc furnaces and 4500t forging units for high-quality output.

Global Export Experience: 11 years of export experience serving markets in North America, Europe, 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: ≤4.47hTerms 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.