Powered by Made-in-China.com
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
AvailableType
RoundStandard
AISI, ASTM, DIN, JIS, GB, BSModel NO.
4340 Steel Plate Square Forged BarComposition
Ferrous Steel ScrapTechnique
ForgedShape
BarSurface Treatment
PolishedSpecial Use
Engineering SteelApplication
Structural Steel BarPayment Term
30% Tt Deposit, Balance Against Bl CopyLength
3000-5800mmEx-Stock
NoDelivery Date
30 DaysUt Standard
Sep 1921-84 D/DGrain Size
ASTM E112Non-Metallic Inclusiton
ASTM E45Form
Round Bars/ Flat Bar / Blocks/ TubeProcess
Eaf+Lf+Vd+Forged+Heat Treatment(Optional)Technology
Hot Rolled/ Forged/ Cold DrawnHeat Treatment
Normalized;Annealed ;Quenched ;TemperedSurface
Black; Peeled; Polished; Machined; Grinded; TurnedTest
Ensile Strength, Yield Strength, Elongation,Certificate
ISO/ Mill CertificateExperience
15 Years Manufacturer ExperienceTransport Package
Seaworthy PackageSpecification
DIA 90-600Trademark
QiluOrigin
ChinaHS Code
722840Production Capacity
500, 000tons/YearKey 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
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.
Send Inquiry
*To:
HUNAN QILU INDUSTRIAL CO., LTD.
HUNAN QILU INDUSTRIAL CO., LTD.*Content:
Supplier replies will be sent to your registered email
You may also like
En24/817m40 36CrNiMo4 1.6511 Sncm 439/Sncm8 4340 Alloy Steel Forging Plate Square Bar
US$800.00-1,000.00
1 Ton(MOQ)
[4340] Steel Plate, Square Forged Bar
US$1,230.00
10 Tons(MOQ)
Steel 1045 4340 4140 Alloy Forged Round Steel Forging Bar
US$600.00-800.00
1 Piece(MOQ)
Ground Polished 20cr 40cr 40CrNiMoA 4140 4340 Alloy Steel Square Bar
US$1,100.00-1,300.00
30 Tons(MOQ)
Hot Rolled Forged 42cr Mo SAE 1045 4140 4340 8620 8640 Carbon Steel Bars Alloy Steel Round Bar
US$1,500.00-1,800.00
10 Tons(MOQ)
Forged Steel Round Bar AISI 4140, 4340, 8620, 4320
US$1,000.00-1,200.00
1 Ton(MOQ)
ASTM 4140 4340 JIS DIN 42CrMo4 C45 Cr12 Forged Alloy Steel Rod 270mm-1000mm Solid Round Bar
US$1,500.00-1,800.00
10 Tons(MOQ)
D3m Manufacturer Hot Rolled Tool Steel Stainless Steel Forged Round Bar/Flat Bar/Square Bar
US$800.00-1,000.00
105 Tons(MOQ)
C45rcr/S45CB/S45cr/S45ti/Q355b China Supplier Mould Forged Square Steel Bar
US$700.00-950.00
1 Ton(MOQ)
AISI4140 8620 4340 Forged Steel Bar Forging Rings Forged Shaft
US$700.00-800.00
10 Tons(MOQ)
Produce Hot Rolled Forged Steel Round Hollow Bar AISI 1020.1045, 1050, 5140, 4130, 4140, 4340, 4145.8620
US$600.00-1,500.00
1 Ton(MOQ)
Tool Steel 1045 4340 4140 Alloy Forged Round Steel Forging Bar
US$500.00-1,000.00
1 Ton(MOQ)
Hot Rolled Carbon Steel Round Bars/Carbon Steel Square Bar/Carbon Steel Flat Bar
US$1,500.00-1,800.00
10 Tons(MOQ)
Hot Forged Rolled Round Bars SAE ASTM AISI 4145 4330 4815 Alloy Steel
US$700.00-800.00
1 Ton(MOQ)

![[4340] Steel Plate, Square Forged Bar](https://image.sourcingai.com/202f0j00TOKtpAGsbfqo/-4340-Steel-Plate-Square-Forged-Bar.jpg)

















