Which international standards does this steel comply with?

The steel complies with AISI, ASTM, DIN, JIS, GB, and BS standards, with equivalents like SCM440, 42CrMo4, and EN19.

What testing methods are performed on the steel?

Testing includes tensile strength, yield strength, elongation, hardness, grain size, ultrasonic inspection, and magnetic particle testing.

Alloy Rolled Steel Round Bar 42CrMo Scm440 4140 42CrMo4

Name: Alloy Rolled Steel Round Bar 42CrMo Scm440 4140 42CrMo4
Brand: HUNAN QILU INDUSTRIAL CO., LTD.
SKU: 663400572

Hunan, ChinaHUNAN QILU INDUSTRIAL CO., LTD.

US$800.00-1,200.00

3 Tons

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Alloy Steel Bar

Standard

AISI, ASTM, DIN, JIS, GB, BS

Model NO.

42CrMo SCM440 4140 42CrMo4

Composition

Ferrous Steel Scrap

Technique

Forged

Shape

Bar

Surface Treatment

Black Surface

Special Use

Engineering Steel

Application

Die Steel Bar

Heat Treatment

Annealed, Qt

Payment Term

30% Tt Deposit, Balance Against Bl Copy

Length

3000-5800mm

Ex-Stock

Delivery Date

30 Days

Ut Standard

Sep 1921-84 D/D

Grain Size

ASTM E112

Non-Metallic Inclusiton

ASTM E45

Transport Package

Loose in 20" or 40" container

Specification

Din-En10083-2

Trademark

Qilu

Origin

Shangdong, China

HS Code

72284000

Production Capacity

40000metric tons/year

Key features

High Strength Alloy Steel: AISI 4140 offers greater strength and heat treatment capabilities compared to 4130 steel.

Wide Size Range: Available in round bars with diameters from 6mm to 1200mm and various thicknesses.

Multiple Heat Treatments: Options include Annealed, Quenched, Tempered, and Normalized to suit specific needs.

Versatile Applications: Ideal for axles, shafts, bolts, gears, molds, and hydraulic machinery components.

Global Standards: Complies with AISI, ASTM, DIN, JIS, GB, and BS standards for international use.

Professional Manufacturing: Produced by a major Chinese manufacturer with advanced smelting and forging equipment.

Flexible Delivery: Supports FOB, CIF, C&F terms with delivery times of 30-45 days or ex-stock options.

Comprehensive Testing: Includes tensile, yield, hardness, grain size, ultrasonic, and magnetic particle testing.

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: ≤3.15hTerms 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 is the difference between AISI 4140 and 4130 steel?

AISI 4140 has a slightly higher carbon content than 4130, providing greater strength and heat treatment capabilities, though it has inferior weldability.

Q:What heat treatment options are available?

We offer Normalized, Annealed, Quenched, and Tempered treatments. Mechanical properties vary based on the selected heat treatment.

Q:What are the standard size ranges for the round bars?

Round bars are available with diameters ranging from 6mm to 1200mm. Plate/Flat/Block thicknesses range from 6mm to 500mm.

Q:What are the common applications for this alloy steel?

It is widely used for axles, shafts, bolts, gears, mold bases, ejectors, hydraulic machinery shafts, and various industrial machinery parts.

Q:What are the payment terms and delivery time?

Payment terms include T/T, L/C, Money Gram, and PayPal. Delivery time is typically 30-45 days, or available ex-stock for certain sizes.