What certifications does the product have?

The product is certified under ISO, RoHS, ABS, and meets standards such as AISI, JIS, ASTM, DIN, BS, and GB.

What surface finishes are available?

Available surface finishes include Black, Peeled, Polished, Machined, Grinded, Turned, and Milled.

En24 36CrNiMo4 1.6511 Hot Rolled Forged Alloy Structural Steel Flat Bar

Name: En24 36CrNiMo4 1.6511 Hot Rolled Forged Alloy Structural Steel Flat Bar
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 1997407002

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

US$599.00-750.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Technique

Hot Rolled

Standard

AISI, JIS, ASTM, DIN, BS, GB

Model NO.

En24

Certification

IS0, RoHS, ABS

Payment Term

30% in Advance by T\T; 70% Before Shipment

Length

3000-5800mm

Delivery Date

12 Days

Ex-Stock

Ut Standard

Sep 1921-84 D/D

Grain Size

ASTM E112

Non-Metallic Inclusiton

ASTM E45

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; Turne

Test

Ensile Strength, Yield Strength, Elongation

Certificate

ISO/ Mill Certificate

Transport Package

Seaworthy Package

Trademark

Qilu

Origin

China

HS Code

7228400000

Production Capacity

400, 000ton/Year

Key features

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

Versatile Heat Treatment: Supports Normalized, Annealed, Quenched, Tempered, Nitriding, and Flame/Induction hardening options.

Wide Size Range: Flat bars available in thickness 6mm-500mm and width 20mm-1000mm for various industrial applications.

Multiple Surface Finishes: Options include Black, Peeled, Polished, Machined, Grinded, Turned, and Milled surfaces.

Global Certification: Certified under ISO, RoHS, ABS, AISI, JIS, ASTM, DIN, BS, and GB standards.

Fast Delivery: Standard delivery time is 30-45 days, with over 20,000 tons of ex-stock available.

Professional Manufacturing: Manufacturer with 50t EAF, 60t LF, and 4500t forging units for high-quality special steel.

Broad Application Scope: Used in aircraft landing gear, automotive, oil & gas, gears, shafts, and heavy-duty engineering.

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: ≤1.59hTerms 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.

Product Q&A

Q:What are the mechanical properties of 4340 steel?

Mechanical properties include tensile strength, yield strength, elongation, hardness, and impact value. Properties vary based on heat treatment conditions such as normalized, tempered, or QT.

Q:What heat treatment options are available?

Options include Normalized, Annealed, Quenched, Tempered, Stress Relieving, Nitriding, and surface hardening via flame or induction methods.

Q:What is the delivery time for orders?

The standard delivery time is 30-45 days. However, over 20,000 tons of ex-stock are available for immediate supply.

Q:What are the payment terms?

Payment terms include T/T (30% deposit, balance against B/L copy), L/C, Money Gram, and PayPal.

Q:What are the common applications for this steel?

It is used for aircraft landing gear, automotive parts, oil and gas drilling, power transmission gears, shafts, axles, and heavy-duty structural components.