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X22CrNi17 / 1.4044 Stainless Steel

Name: X22CrNi17 / 1.4044 Stainless Steel
Brand: Aspersteel
SKU: 8933
Availability: InStock
Rating: 5 (1 reviews)

Steel round bar

Stainless Steel Round Bar 1.4044.6 / X22CrNi17 / AISI 431C General Description The round bar made from stainless steel grade 1.4044.6 (European equivalent X22CrNi17, American equivalent AISI 431C) is a martensitic corrosion-resistant steel with high chromium content and nickel addition. This grade combines high strength, hardness, and good corrosion resistance after heat treatment. Chemical Composition […]

Description

Stainless Steel Round Bar 1.4044.6 / X22CrNi17 / AISI 431C

General Description

The round bar made from stainless steel grade 1.4044.6 (European equivalent X22CrNi17, American equivalent AISI 431C) is a martensitic corrosion-resistant steel with high chromium content and nickel addition. This grade combines high strength, hardness, and good corrosion resistance after heat treatment.

Chemical Composition of 1.4044.6 / X22CrNi17 / AISI 431C (in %):

Element	Content
Carbon (C)	0.17–0.25
Chromium (Cr)	15.50–17.50
Nickel (Ni)	1.50–2.50
Manganese (Mn)	≤ 1.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.040
Sulfur (S)	≤ 0.030

Mechanical Properties:

Property	Value
Yield Strength	≥ 600 MPa
Ultimate Tensile Strength	850–1000 MPa
Elongation (A5)	≥ 12%
Hardness (after quenching and tempering)	28–40 HRC
Impact Toughness (KCU)	≥ 40 J/cm²
Reduction of Area (Z)	≥ 40%

Applications

Stainless steel grade 1.4044.6 is widely used for manufacturing:

Pump and compressor shafts
Turbine components
Fasteners
Springs
Valves
Shipbuilding screw shafts
Shut-off valve parts
Chemical equipment components
Products exposed to seawater
High-strength and corrosion-resistant components

Features

High corrosion resistance in atmospheric and mildly aggressive environments
Excellent hardenability
Good machinability for cutting
Heat-treatable for enhanced strength
Magnetic properties in all conditions
Resistance to pitting corrosion
Weldable with preheating

Technical Specifications

Property	Value
Density	7.7 g/cm³
Quenching Temperature	1000–1050°C
Tempering Temperature	150–200°C
Forging Temperature Range	1180–850°C
Thermal Conductivity	25 W/(m·K)
Elastic Modulus	200 GPa
Operating Temperature	Up to 400°C

Delivery

The product is supplied as calibrated bars of various diameters. The steel exhibits dimensional stability after heat treatment and high surface quality. Each batch is accompanied by a quality certificate verifying its chemical composition and mechanical properties.

Recommendations

Heat Treatment: Quenching followed by low tempering is recommended for optimal properties.
Machining: Use tools specifically designed for stainless steel and adhere to appropriate cutting parameters.

Applications Across Industries

Mechanical Engineering: Components requiring high strength and corrosion resistance.
Chemical Industry: Equipment and fittings for mildly aggressive environments.
Shipbuilding: Parts for marine mechanisms and structures.

This steel is ideal for applications where a combination of high strength and corrosion resistance is essential.