DIN 1.7380 Chrome Moly Alloy Steel Bars

120.0 INR/Kilograms

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Product Details:

Finish Bright, Black, Polished, Peeled, Turned, Grounded
Application Engineering, Power Generation, Oil & Gas, Petrochemical, Chemical Processing, Refineries
Processing Annealed or Normalized
Grade DIN 1.7380 (10CrMo9-10)
Technique Hot Rolled / Cold Drawn
Diameter 5 mm to 500 mm
Type Round Bar
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DIN 1.7380 Chrome Moly Alloy Steel Bars Price And Quantity

Minimum Order Quantity 1000 Kilograms
Price 120.0 INR/Kilograms

DIN 1.7380 Chrome Moly Alloy Steel Bars Product Specifications

Finish Bright, Black, Polished, Peeled, Turned, Grounded
Technique Hot Rolled / Cold Drawn
Tolerance h9, h11 or as required
Length 100 mm to 6000 mm (Custom cut available)
Grade DIN 1.7380 (10CrMo9-10)
Material Chrome Moly Alloy Steel (DIN 1.7380)
Processing Annealed or Normalized
Type Round Bar
Application Engineering, Power Generation, Oil & Gas, Petrochemical, Chemical Processing, Refineries
Standard DIN 1.7380
Diameter 5 mm to 500 mm
Specific Use For high temperature and high pressure applications

Yield Strength 280 MPa min
Industrial Use Automotive, Boiler Manufacturing, Mechanical Engineering
Tensile Strength 510-690 MPa
Heat Treatment Normalized and Tempered
Delivery Condition As Rolled / Heat Treated / Peeled / Polished
Machinability Good
Bar Shape Round, Square, Hex, Flat
Corrosion Resistance Good, especially in high temperature environments
Elongation 20%
Surface Condition Mill Finish or Custom
Hardness 207-241 HB

Product Description

DIN 1.7380 (chemically designated as 10CrMo9-10) is a low-alloy, heat-resistant chromium-molybdenum steel. It is specifically engineered for high-temperature and high-pressure service, making it a staple in power generation and petrochemical industries.

1. Key Characteristics

High Creep Strength: Maintains structural integrity at temperatures up to 530C600C.
Corrosion Resistance: The chromium content provides improved oxidation and corrosion resistance compared to standard carbon steels.
Weldability: Good weldability, though preheating and post-weld heat treatment (PWHT) are typically mandatory to prevent cracking.

2. Chemical Composition (Typical %)

The "Chrome-Moly" name comes from its primary alloying elements: 2.25% Chromium and 1% Molybdenum.

Element	Carbon (C)	Silicon (Si)	Manganese (Mn)	Chromium (Cr)	Molybdenum (Mo)
Value	0.080.14	0.50	0.400.80	2.002.50	0.901.10

3. Mechanical Properties (at Room Temperature)

Properties can vary slightly depending on the heat treatment (Normalized + Tempered is standard).

Tensile Strength ( $R_m$ ): 480 630 MPa
Yield Strength ( $R_{eH}$ ): 280 MPa (for thickness 16mm)
Elongation ( $A$ ): 18%
Impact Energy ( $KV$ ): 31 J (at 20C)

4. International Equivalents

If you are sourcing globally or working with American standards, you will likely see these equivalent grades:

ASTM/ASME: A182 Grade F22 (Forgings), A335 Grade P22 (Pipes), A387 Grade 22 (Plates).
JIS: STPA 24 / SFVA F22.
AFNOR: 10CD9-10.

Excellent Mechanical and Physical Properties

DIN 1.7380 Chrome Moly Alloy Steel Bars feature a minimum yield strength of 280 MPa and up to 20% elongation, ensuring both resilience and flexibility. The material maintains stability and mechanical integrity even in high temperature and pressure applications, thanks to its optimized composition, heat treatment (normalized and tempered), and consistent quality.

Versatility for Industrial Applications

These steel bars are tailored to suit diverse industries, including automotive, mechanical engineering, boiler manufacturing, oil & gas, chemical processing, and refineries. Available in customizable dimensions, bar shapes, and various finishing options-black, bright, polished, peeled-these bars are ideal for projects requiring robust corrosion resistance and reliable machinability.

Customization and Delivery Flexibility

Manufacturers and suppliers in India offer DIN 1.7380 bars that can be delivered as-rolled, heat treated, peeled, or polished in tolerance grades h9, h11, or as specified by the client. Custom lengths and diameters are available, catering specifically to the unique requirements of different engineering and industrial projects.

FAQ's of DIN 1.7380 Chrome Moly Alloy Steel Bars:

Q: How are DIN 1.7380 Chrome Moly Alloy Steel Bars processed for industrial use?

A: DIN 1.7380 bars can undergo several processing techniques, including hot rolling, cold drawing, annealing, normalizing, and tempering. These treatments enhance their mechanical properties, make them suitable for high temperature and pressure environments, and ensure good machinability for further fabrication.

Q: What applications benefit most from these Chrome Moly Alloy Steel Bars?

A: These bars are particularly advantageous in sectors such as automotive, mechanical engineering, boiler and pressure vessel manufacturing, power generation, oil & gas, petrochemical, and chemical processing, where materials must withstand high pressures and elevated temperatures.

Q: When should heat-treated and polished versions be selected?

A: Heat-treated and polished bars are recommended for applications demanding additional surface quality, dimensional accuracy, and enhanced resistance to wear and corrosion-such as parts used in refineries, power plants, and precision engineering projects.

Q: Where are these steel bars primarily supplied and manufactured?

A: DIN 1.7380 Chrome Moly Alloy Steel Bars are widely produced, fabricated, and distributed in India by manufacturers, exporters, suppliers, and dealers to meet both domestic and international demand, especially in heavy and process industries.

Q: What benefits do these alloy steel bars provide over regular carbon steel?

A: Compared to regular carbon steel, DIN 1.7380 bars offer heightened strength, superior toughness, better corrosion and oxidation resistance at high temperatures, and improved performance in critical environments, leading to longer service life and reduced maintenance.

Q: How is the corrosion resistance of these bars ensured in challenging environments?

A: The chrome and molybdenum alloying in DIN 1.7380 steel provides inherent corrosion resistance, particularly in high temperature conditions. Proper heat treatment and custom surface finishes further enhance their durability and lifecycle in aggressive industrial settings.

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