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1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars 1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars 1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars 1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars 1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars

1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars

458.0 INR/Kilograms
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Product Details:

  • Specific Use Aircraft Parts, Aerospace Structures, High-Stress Components
  • Grade 34CrNiMo6
  • Diameter 20 mm to 400 mm
  • Type Round Bar & Rod
  • Material 1.7734 Alloy Steel
  • Tolerance h9, h11, h13 or as per requirement
  • Standard EN 10083-3, DIN 1.7734, 34CrNiMo6
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1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars Price And Quantity

  • 458.0 INR/Kilograms
  • 1 Kilograms

1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars Product Specifications

  • Aircraft Parts, Aerospace Structures, High-Stress Components
  • 20 mm to 400 mm
  • 34CrNiMo6
  • Round Bar & Rod
  • 1.7734 Alloy Steel
  • Custom Cut Lengths, Standard up to 6 meters
  • EN 10083-3, DIN 1.7734, 34CrNiMo6
  • h9, h11, h13 or as per requirement
  • Black/Polished/Turned
  • Heat Treated, Annealed, Quenched and Tempered
  • Aerospace, Aircraft, Engineering Components
  • Hot Rolled / Forged
  • Ready Stock in All Standard Sizes
  • > 30 J (at -20C)
  • Can be Nitrided, Induction Hardened
  • Moderate, Not Stainless
  • Tempered Martensite (After Proper Heat Treatment)
  • Annealed / Hardened & Tempered
  • Up to 835 MPa (Depending on Heat Treatment)
  • 13% at break (in 50 mm)
  • Peeled, Polished, Turned, As Rolled
  • Max 248 HB (Annealed Condition)
  • 7.85 g/cm3
  • Up to 980 MPa (Depending on Heat Treatment)
  • Good (in Annealed Condition)

Product Description

1.7734 is a high-strength heat-treatable chromium-molybdenum-vanadium alloy steel engineered for demanding aerospace and motorsport applications. Widely recognized under the French designation 15CDV6, this material features a low carbon content balanced by chromium, molybdenum, and vanadium to deliver an exceptional combination of high yield strength, outstanding toughness, and superior weldability without requiring complex pre-heating or post-weld heat treatment.

The chemical composition relies on a controlled mass fraction balance designed to maximize strength and structural integrity. Carbon content ranges from 0.12 to 0.18 percent, accompanied by 0.80 to 1.10 percent manganese, 1.25 to 1.50 percent chromium, 0.80 to 1.00 percent molybdenum, and 0.20 to 0.30 percent vanadium. Impurities are strictly capped, with silicon at a maximum of 0.20 percent, phosphorus limited to 0.020 percent maximum, and sulfur at 0.015 percent maximum, with iron constituting the balance.

Mechanical properties vary across standard supply conditions depending on the required heat treatment profile. In the soft annealed condition, designated as 1.7734.2, hardness is capped at 197 HB maximum to facilitate machining. In heat-treated condition 1.7734.4, the material achieves a minimum tensile strength of 700 MPa, a minimum yield strength of 550 MPa, and an elongation of at least 13 percent. Condition 1.7734.5 elevates strength further, delivering a tensile range of 980 to 1180 MPa, a yield strength of at least 790 MPa, minimum elongation of 11 percent, and a hardness between 293 and 352 HB. The highest standard mechanical state, condition 1.7734.6, targets a tensile strength of 1080 to 1250 MPa, a minimum yield strength of 930 MPa, elongation of at least 10 percent, and a hardness from 321 to 363 HB.

In terms of physical attributes, 1.7734 has a density of 7.80 grams per cubic centimeter and a modulus of elasticity ranging from 190 to 210 GPa. The material is governed by global aerospace standards, including German material specification WL 1.7734.2, LN 9369, French standards AIR 9160C and ASNA 3108, alongside European norms EN 2218 and EN 2219. Due to its resistance to high stress and fatigue, 1.7734 round bars and rods are widely used in rocket motor casings, aircraft structural fittings, high-pressure gas cylinders, space launch vehicle components, and motorsport roll cages.



Superior Mechanical Properties for Critical Applications

The 1.7734 (34CrNiMo6) alloy round bars and rods provide exceptional mechanical strength and toughness, making them ideal for aircraft, aerospace, and other high-stress engineering applications. With a tempered martensite microstructure and the ability to achieve various hardness and tensile properties with heat treatment, these bars ensure safety, reliability, and performance where it matters most.


Flexible Processing and Customization Options

These alloy bars can be supplied in annealed, hardened, or tempered conditions, and can be further processed via nitriding or induction hardening. Custom cut lengths up to 6 meters, different surface finishes, and precise tolerances (h9, h11, h13) offer versatility for fabricators, manufacturers, and engineers to meet project-specific requirements efficiently.


Consistent Availability and Rapid Delivery

1.7734 bars and rods are maintained in ready stock across a wide range of sizes by dealers, exporters, and suppliers in India. Whether you require standard or customized solutions, prompt dispatch and expert service ensure minimal lead times and reliable project timelines.

FAQ's of 1.7734 Bar & Rod Aerospace Aircraft Alloy Round Bars:


Q: How is 1.7734 Bar & Rod Aerospace Alloy typically used in the aerospace industry?

A: 1.7734 Bar & Rod (34CrNiMo6) is commonly used to manufacture high-stress components such as landing gear, drive shafts, and structural aircraft parts due to its superior tensile strength, impact toughness, and reliable performance under varied conditions.

Q: What processing options are available for this alloy, and how do they benefit end users?

A: This alloy can be supplied in annealed, hardened, or tempered states, and further processed by nitriding or induction hardening. Such versatility allows customization of mechanical properties and surface hardness, enhancing wear resistance and serving distinct engineering needs.

Q: When should I choose a peeled, polished, turned, or as-rolled surface condition?

A: Surface condition selection depends on your application's tolerance and finish requirements. Peeled or turned bars are ideal for precision machining, polished for better aesthetics, and as-rolled for general engineering where exact finish is less critical.

Q: What are the advantages of the tempered martensite microstructure in this alloy?

A: Tempered martensite imparts high strength and significant toughness, even at sub-zero temperatures, increasing the safety and durability of aerospace and high-load engineering parts.

Q: Where can I source 1.7734 Alloy Steel Bars and Rods in India?

A: These bars are readily available from a network of reputable dealers, exporters, fabricators, manufacturers, and suppliers throughout India, ensuring timely delivery and consistent quality.

Q: How does the annealed condition enhance machinability of this alloy?

A: In the annealed condition, the alloy's microstructure is more homogenous and softer, making it much easier to machine into precise components with lower tool wear, reducing overall manufacturing time and costs.

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