4140 Hex Bars Manufacturer, Stockist and Exporter in India

Super Metal Manufacturing Co. is a trusted 4140 Hex Bars Manufacturer, Stockist and Exporter in India, supplying high-quality alloy steel hex bars for automotive, engineering, machinery, construction, oil and gas, manufacturing, mining and other demanding industrial applications. Our 4140 Hex Bars are supplied according to applicable international standards and customer-specific technical requirements.

AISI 4140 is a chromium-molybdenum alloy steel known for its combination of high strength, toughness, hardenability and wear resistance. These properties make 4140 Hex Bars suitable for manufacturing components that operate under heavy mechanical loads, impact, fatigue and demanding working conditions.

As an experienced 4140 Hex Bars Manufacturer in India, we offer hexagonal alloy steel bars in different across-flat sizes, lengths, surface finishes and heat-treatment conditions. Our products are suitable for both standard requirements and customized industrial applications where dimensional accuracy and material performance are important.

Super Metal Manufacturing Co. maintains stock of 4140, EN19 and 42CrMo4 alloy steel products and provides customized cut-to-length and machining-ready supply. Our existing product specifications list hex sizes from 10 mm to 250 mm across flats and standard lengths from 1000 mm to 6000 mm.

4140 Hex Bars Material Specification

Product Name 4140 Hex Bars
Material Grade AISI 4140
UNS G41400
Material Type Alloy Steel
Shape Hexagonal / Hex
Specifications ASTM A182, ASME SA182
Standards EN, DIN, JIS, ASTM, BS, ASME, AISI
Range of A/F 10 mm To 250 mm
Length 1000 mm To 6000 mm
Finish Black, Bright Polished
Form Hex (A/F), Billet, Ingot, Forging

4140 Hex Bars Equivalent Grades

Country Standards UNS AISI ASTM A29 DIN 17200 BS 970 JIS G4105 GB/T 3077 AS 1444
Grades G41400 4140 4140 1.7225 / 42CrMo4 EN 19 / 42CrMo4 SCM440 42CrMo 4140

4140 Hex Bars Manufacturer in India

Super Metal Manufacturing Co. supplies 4140 Hex Bars in India for engineering companies, machinery manufacturers, automotive component manufacturers, fabrication companies, distributors and industrial buyers. Our alloy steel hex bars are selected for applications where high strength, toughness and resistance to mechanical stress are required.

As a reliable 4140 Hex Bars Stockist in India, we support customers with standard sizes as well as customized requirements. Buyers can provide the required across-flat size, length, quantity, surface finish, heat-treatment condition and applicable standard to receive a suitable quotation.

Our manufacturing and stockist operations focus on dimensional accuracy, material consistency, surface quality and dependable delivery. Mill Test Certificates and other inspection documents can be provided according to customer requirements.

Advantages of 4140 Hex Bars

  • High tensile strength
  • Excellent toughness
  • Good hardenability
  • Good wear resistance
  • Excellent resistance to mechanical stress
  • Suitable for heat treatment
  • Good fatigue resistance
  • Suitable for heavy-duty components
  • Good machinability in suitable conditions
  • Available in customized dimensions
  • Suitable for machining and fabrication
  • Reliable performance in demanding applications

4140 Hex Bars Manufacturing Process

The manufacturing process of 4140 Hex Bars starts with alloy steel raw material having the required chemical composition. The material is processed under controlled manufacturing conditions to obtain the required hexagonal profile, dimensions and material properties.

Depending on the required specification, the manufacturing process may involve hot working, forging, rolling, cold drawing, peeling, grinding or machining. These processes help achieve accurate across-flat dimensions, straightness and the required surface condition.

Heat treatment is an important stage in producing high-performance 4140 Hex Bars. Depending on the application, the material can be supplied in annealed, normalized, hardened and tempered or quenched and tempered conditions. The selected condition is based on the required hardness, strength and toughness.

After manufacturing and heat treatment, finished 4140 Hex Bars are inspected for dimensions, surface condition and material quality. Chemical composition analysis, hardness testing, mechanical testing and other inspection procedures can be performed according to customer specifications.

4140 Hex Bars Applications

4140 Hex Bars are used in a wide range of Indian engineering and manufacturing industries. Their combination of strength, toughness and wear resistance makes them suitable for components exposed to mechanical loads and demanding service conditions.

  • Automotive components
  • Machine components
  • Fasteners
  • Bolts and studs
  • Gears
  • Shafts and axles
  • Hydraulic components
  • Construction machinery
  • Mining equipment
  • Oil and gas equipment
  • Power transmission components
  • Heavy engineering components
  • General industrial machinery
Alloy Steel 4140 Hex Bars Supplier in India

As a leading 4140 Hex Bars Exporter from India, Super Metal Manufacturing Co. supplies alloy steel hex bars to customers in international markets. Our website states that the company exports alloy steel bars to more than 40 countries and maintains stock of 4140, EN19 and 42CrMo4 products.

We provide 4140 Hex Bars in standard and customized sizes with options for cut-to-length, machining-ready supply and suitable surface finishes. Our export-oriented supply process supports industrial customers requiring reliable material documentation, secure packing and coordinated shipping.

For domestic customers, we also support industrial requirements across India. Customers can share their required grade, hex size, length, quantity and delivery location to receive stock availability and pricing information.

4140 Hex Bars Chemical Composition

Element Composition
Carbon (C) 0.38 – 0.43%
Silicon (Si) 0.15 – 0.35%
Manganese (Mn) 0.75 – 1.00%
Chromium (Cr) 0.80 – 1.10%
Molybdenum (Mo) 0.15 – 0.25%
Phosphorus (P) 0.035% Max
Sulfur (S) 0.040% Max

4140 Hex Bars Heat Treatment

4140 alloy steel is suitable for different heat-treatment processes. Depending on the required application and mechanical properties, 4140 Hex Bars can be supplied in annealed, normalized, hardened and tempered or quenched and tempered conditions.

Controlled heat treatment can provide an appropriate combination of hardness, tensile strength, yield strength and toughness. The required treatment should be selected according to the application, section size and applicable specification.

Alloy Steel 4140 Hex Bars Dimensions Standard

Hex Size (Across Flats) Approx. Weight Tolerance
10 mm 0.67 kg/m ±0.30 mm
12 mm 0.97 kg/m ±0.30 mm
14 mm 1.33 kg/m ±0.30 mm
17 mm 1.91 kg/m ±0.30 mm
19 mm 2.45 kg/m ±0.30 mm
22 mm 3.29 kg/m ±0.30 mm
24 mm 3.80 kg/m ±0.30 mm
27 mm 4.78 kg/m ±0.50 mm
30 mm 5.88 kg/m ±0.50 mm
32 mm 6.62 kg/m ±0.50 mm
36 mm 8.50 kg/m ±0.50 mm
41 mm 11.18 kg/m ±0.50 mm
46 mm 14.01 kg/m ±0.50 mm
50 mm 16.28 kg/m ±0.50 mm

The available 4140 Hex Bars range covers standard industrial sizes, with additional customized dimensions available according to customer requirements and production capability. The current product information lists A/F sizes from 10 mm to 250 mm and lengths from 1000 mm to 6000 mm.

Certifications & Quality Assurance

We maintain robust quality processes and can provide the following documents with shipments:

  • Mill Test Certificate
  • Quality Management: ISO certificate
  • Third-party inspection reports (TPI) available on request
  • Chemical Composition Report
  • Mechanical Test Report
  • Dimensional Inspection Report

The company website states that Super Metal Manufacturing Co. is ISO 9001:2015 and BIS certified and provides Mill Test Certificates with shipments.

Export Packing & Shipping

Typical export packing includes steel bundles, wooden crates or skids, waterproof wrapping and fumigated wood where required. We can arrange packing according to the destination, transportation method and buyer requirements.

MOQ, Lead Time & Payment

Minimum Order Quantity (MOQ): Contact us for exact MOQ according to size, grade and quantity.
Lead Time: In-stock items: 1–3 weeks, subject to inspection and documentation. Mill-direct and customized production may require additional time depending on order quantity and specifications.
Payment Terms: Contact us to discuss suitable payment terms.

HS Code & Export Documentation

HS classification can vary according to the exact product form and customs requirements. Export documentation can include Commercial Invoice, Packing List, Bill of Lading / AWB, Mill Test Certificate and Certificate of Origin (COO), where required.

Typical Applications

4140 Hex Bars are commonly used for shafts, gears, axles, fasteners, hydraulic components, machine parts, construction equipment, mining equipment, automotive components, oil and gas equipment and other high-strength engineering components.

Supply Across India

Super Metal Manufacturing Co. supplies 4140 Hex Bars for industrial customers across major Indian manufacturing and engineering markets. Supply can be arranged according to product size, quantity, technical specification and delivery requirements.

Export Destinations

In addition to supplying customers in India, Super Metal Manufacturing Co. exports 4140, EN19 and 42CrMo4 alloy steel bars to international markets. The company states that it serves 40+ export countries across regions including the Middle East, Europe, Africa, Asia and North America.

Frequently Asked Questions

Who is a 4140 Hex Bars Manufacturer in India?

Super Metal Manufacturing Co. is a manufacturer, stockist and exporter of 4140, EN19 and 42CrMo4 alloy steel bars, including hex bars, for Indian and international industrial customers.

What are 4140 Hex Bars used for?

4140 Hex Bars are commonly used for automotive components, fasteners, gears, shafts, machine parts, hydraulic components, construction equipment, mining equipment and general engineering applications.

What is the equivalent grade of 4140 Hex Bars?

AISI 4140 is identified as UNS G41400 and is commonly compared with 42CrMo4, 1.7225, EN19 and SCM440 according to the applicable material standard.

What sizes of 4140 Hex Bars are available?

Our product specification lists hex sizes from 10 mm to 250 mm across flats and lengths from 1000 mm to 6000 mm. Customized sizes can be discussed according to requirements and availability.

Can you supply customized 4140 Hex Bars?

Yes. Customized dimensions, cut-to-length requirements, machining-ready supply and suitable surface finishes can be arranged according to customer specifications.

Can 4140 Hex Bars be heat treated?

Yes. 4140 Hex Bars are suitable for annealing, normalizing, hardening and tempering and quenching and tempering depending on the required application and mechanical properties.

Do you supply 4140 Hex Bars across India?

Yes. We supply 4140 Hex Bars for industrial customers across India, subject to size, quantity, specification and delivery requirements.

What quality documents are available?

Mill Test Certificates and other inspection documents can be provided according to customer requirements. Third-party inspection is also available on request.

How are 4140 Hex Bars packed?

We use steel bundles, wooden crates or skids and waterproof wrapping as appropriate for safe handling and transportation. Export packing can be customized according to destination requirements.

How can I request a quotation?

You can provide the required grade, hex size, length, quantity, material condition and delivery location through email, WhatsApp or the enquiry form to receive a quotation.