What quality tests are performed on the steel?

Tests include tensile strength, yield strength, elongation, area reduction, impact value, hardness, grain size, ultrasonic testing, and magnetic particle testing.

What are the main applications for 4130 steel?

It is widely used in commercial aircraft, automotive parts, machine tools, hydraulic tools, auto racing, aerospace, and oil & gas industries.

Does the supplier have stock available?

Yes, we maintain over 20,000 tons of ex-stock inventory in Wuxi and Dongguan cities for various sizes.

1.7218 Scm430 25crmo4 4130 Polished Steel Round Bar

Name: 1.7218 Scm430 25crmo4 4130 Polished Steel Round Bar
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 876160715

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

US$1,000.00-1,200.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Alloy Steel Bar

Standard

AISI, ASTM, DIN, JIS, GB, BS

Model NO.

1.7218 SCM430 25CrMo4 4130

Composition

Ferrous Steel Scrap

Technique

Forged

Shape

Bar

Surface Treatment

Polished

Special Use

Engineering Steel

Application

Die Steel Bar

Heat Treatment

Normalized;Annealed ;Quenched ;Tempered/Qt

Payment Term

30% Tt Deposit, Balance Against Bl Copy

Length

3000-5800mm

Ex-Stock

Yes

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

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 100-1200

Trademark

Qilu

Origin

China

HS Code

722840

Production Capacity

500, 000tons/Year

Key features

Wide Size Range: Round bars available in diameters from 6mm to 1200mm for diverse applications.

Custom Heat Treatment: Options include Normalized, Annealed, Quenched, and Tempered to meet specific needs.

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

Large Ex-Stock Capacity: Over 20,000 tons of inventory available in Wuxi and Dongguan for immediate delivery.

Strict Quality Testing: Includes tensile strength, yield strength, elongation, grain size, and ultrasonic tests.

Professional Manufacturing: 15 years experience with advanced EAF, LF, VD furnaces and large forging hammers.

Versatile Applications: Suitable for aerospace, automotive, oil & gas, and hydraulic tool industries.

Fast Delivery Options: Standard delivery within 30-45 days, with ex-stock items available for quick shipment.

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: ≤1.68hTerms 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 sizes for the steel round bars?

Round bars are available in diameters ranging from 6mm to 1200mm. Flat bars and blocks have thicknesses from 6mm to 500mm and widths from 20mm to 1000mm.

Q:What heat treatment options are available?

We offer Normalized, Annealed, Quenched, and Tempered (QT) heat treatments to achieve desired mechanical properties.

Q:What surface treatments can be provided?

Surface options include Black, Peeled, Polished, Machined, Grinded, Turned, and Milled finishes.

Q:What is the typical delivery time?

Standard delivery time is 30-45 days. For items in stock, delivery can be much faster depending on availability.

Q:What payment terms are accepted?

We accept T/T (30% deposit, balance against copy of B/L), L/C, Money Gram, and PayPal.