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4340 Steel Plate Square Forged Bar
US$2,500.00-3,500.00
1 Ton
Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Round

Standard

AISI, ASTM, DIN, JIS, GB, BS

Model NO.

4340 Steel Plate Square Forged Bar

Composition

Ferrous Steel Scrap

Technique

Forged

Shape

Bar

Surface Treatment

Polished

Special Use

Engineering Steel

Application

Structural Steel Bar

Payment Term

30% Tt Deposit, Balance Against Bl Copy

Length

3000-5800mm

Ex-Stock

No

Delivery Date

30 Days

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; Turned

Test

Ensile Strength, Yield Strength, Elongation,

Certificate

ISO/ Mill Certificate

Experience

15 Years Manufacturer Experience

Transport Package

Seaworthy Package

Specification

DIA 90-600

Trademark

Qilu

Origin

China

HS Code

722840

Production Capacity

500, 000tons/Year

Key features

High Toughness and Strength: Medium carbon low alloy steel with excellent toughness in large sections.
Versatile Heat Treatment: Available in normalized, annealed, quenched, and tempered conditions.
Wide Size Range: Round bars from 6mm to 1200mm diameter and plates up to 500mm thickness.
Multiple Surface Options: Offering black, peeled, polished, machined, grinded, turned, and milled surfaces.
Comprehensive Testing: Includes tensile strength, yield strength, elongation, and ultrasonic testing.
Global Application Scope: Used in aerospace, automotive, oil & gas, and heavy machinery industries.
Manufacturer Experience: 15 years of manufacturer experience with 11 years of export history.
Fast Delivery Capability: Standard delivery within 30 days with over 20000 tons of ex-stock available.

Company profile

HUNAN QILU INDUSTRIAL CO., LTD.
Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryLow MOQ
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.

Product Q&A

Q:What are the standard equivalents for 4340 steel?
A:
4340 steel equivalents include JIS G4103 (SNCM439), EN10250 (36CrNiMo4/1.6511), BS970 (EN24/817M40), and ASTM A29.
Q:What is the tensile strength range for 4340 steel?
A:
The tensile range is generally 930 - 1080 Mpa when supplied hardened and tempered.
Q:Can 4340 steel be welded?
A:
Yes, fusion and resistance welding are possible with 4340 alloy steel.
Q:What are the available payment terms?
A:
Payment terms include T/T (30% deposit, balance against BL copy), L/C, Money Gram, and Paypal.
Q:What is the delivery time for orders?
A:
Standard delivery time is 30 days, with peak season lead time of one month and off-season within 15 workdays.

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