Martensitic stainless steel

Martensitic

Martensitic stainless steel - is an alloy that usually contains about 12 - 14% chromium, has a comparatively increased carbon content of 0.2 - 0.4%, and is magnetic. It is well strengthened by quenching and tempering. Such grades of stainless steel exhibit high resistance to aging processes.

Frequently Asked Questions About Martensitic Stainless Steel

Martensitic stainless steel - is a type of stainless steel alloy that has a body-centered tetragonal crystal structure (martensitic) in the hardened state. They are ferromagnetic, hardenable by heat treatment, and are generally resistant to corrosion only in relatively moderately aggressive environments.
Steel is a good choice for various applications due to its durability, strength, and resistance to corrosion. The composition and properties of martensitic steel give it advantages over other types of steel in various industrial functions. This steel is an ideal choice for the production of mechanical valves and instruments, turbine parts, medical instruments, and other applications and products.

Chromium content ranges from 10.5 to 18%, and carbon content may exceed 1.2%, although for materials commonly used for tubular goods and other oil and gas applications, carbon content is typically 0.020% or less. Small amounts of nickel may be added to improve corrosion resistance in some environments and to improve strength. Molybdenum and manganese may also be added in some martensitic grades.

The structures of these steels are tetragonal, body-centered, and they are classified in the "hard" ferromagnetic group. In the annealed condition, they have a tensile yield strength of about 275 MPa, so they are usually machined, cold-forged, or cold-worked in this condition. The strength obtained by heat treatment depends on the carbon content of the alloy. Increasing the carbon content increases the potential for strength and toughness, but reduces ductility and toughness. Higher grades of carbon are capable of being heat treated to a hardness of 60 HRC and above.

Optimum corrosion resistance is achieved in the heat-treated condition, i.e., quenched and tempered. Compared to austenitic and ferritic grades of stainless steel, martensitic stainless steels are less resistant to corrosion. Martensitic grades of stainless steel can be developed with the addition of nitrogen and nickel, but with a lower carbon content than traditional grades. Such steels have increased strength, weldability and corrosion resistance.

List of martensitic stainless steel grades

List of stainless steel grades related to the martensitic type. To get detailed information about a specific grade, follow the link from the list.

Inconel 601 | AISI 601 | Alloy 601 | EN 2.4851 | DIN NiCr23Fe | Nicrofer 6023 | Sanicro 61 | UNS N06601

Inconel 601 | AISI 601 | Alloy 601 | EN 2.4851 | DIN NiCr23Fe | Nicrofer 6023 | Sanicro 61 | UNS N06601 is a heat-resistant and corrosion-resistant nickel-chromium metal intended
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Inconel 617 | AISI 617 | Alloy 617 | EN 2.4663 | DIN NiCr23Co12Mo | Nicrofer 5520 Co | UNS N06617

Inconel 617 | AISI 617 | Alloy 617 | EN 2.4663 | DIN NiCr23Co12Mo | Nicrofer 5520 Co | UNS N06617 is a nickel-chromium alloy with additives of molybdenum and cobalt. It has
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M390 Stainless Steel

M390 is a powder stainless martensitic steel with increased chromium content. Böhler M390 is one of the best knife steels in the world. This product of modern powder metallurgy
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M398 Stainless Steel

M398 (BÖHLER M398 MICROCLEAN) - is a martensitic chromium steel produced by powder metallurgy. Due to its alloying concept, this stainless steel provides extremely high wear
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N685 Stainless Steel

N685 is a stainless martensitic chromium steel with a high carbon content, addition of molybdenum and vanadium. N685 steel is an excellent choice for those looking for a strong,
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N690 Stainless Steel

N690 is a cobalt-alloyed martensitic stainless steel produced by Böhler - Uddeholm AG. The steel has an original chemical composition that stands out from other grades of similar
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N695 Stainless Steel

N695 is a stainless martensitic chromium steel with a high carbon content and the addition of molybdenum. It has high hardness, wear resistance and good corrosion resistance. It
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RWL-34 Stainless Steel

RWL-34 is a high-carbon stainless steel powder, additionally alloyed with molybdenum and vanadium. It has medium corrosion resistance. It is produced by the Swedish company
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SG2 (SPG2, Super Gold 2) Stainless Steel

SG2 (SPG2, Super Gold 2) is a corrosion-resistant powder stainless steel with a fine-grained structure. Developed by the Japanese company Takefu in 1991 specifically for table and
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Stainless Steel Grade AISI 410 | EN 1.4006 | DIN X12CrN13

AISI 410 | EN 1.4006 | DIN X12CrN13 - is a general-purpose martensitic stainless steel. It contains 11.5% chromium, which provides good corrosion resistance. However, the
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Stainless Steel Grade AISI 414 | EN 1.4008 | DIN GX7CrNiMo12-1

AISI 414 | EN 1.4008 | DIN GX7CrNiMo12-1 is a martensitic stainless steel designed for primary forming of wrought products. It has moderately high tensile strength among wrought
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Stainless Steel Grade AISI 416 | EN 1.4005 | DIN X12CrS13

Martensitic stainless steel AISI 416 EN 1.4005 | DIN X12CrS13 is a stainless alloy that can be freely machined. The machinability of this grade is 85% - this is the highest figure
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Stainless Steel Grade AISI 416Se

AISI 416Se is a martensitic stainless steel that, due to the selenium (Se) and sulfur (S) content, provides better machinability than other similar stainless steels. However, this
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Stainless Steel Grade AISI 418 | EN 1.4313 | DIN X3CrNiMo13-4

AISI 418 | EN 1.4313 | DIN X3CrNiMo13-4 is a martensitic stainless steel designed for primary forming into forged products. The alloy has a relatively high base value among
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Stainless Steel Grade AISI 420 | EN 1.4021 | DIN X20Cr13

AISI 420 | EN 1.4021 | DIN X20Cr13 is used in the hardened and tempered condition in many structural and fastening products where moderate corrosion resistance is required.
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Stainless Steel Grade AISI 420 | EN 1.4028 | DIN X30Cr13

AISI 420 | EN 1.4028 | DIN X30Cr13 is used in the hardened and tempered condition in many structural and fastening products where moderate corrosion resistance is required. Due to
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Stainless Steel Grade AISI 420 | EN 1.4034 | DIN X46Cr13

AISI 420 | EN 1.4034 | DIN X46Cr13 - is a martensitic stainless steel which has good polishing and mechanical properties but poor weldability. Due to its high carbon content, this
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Stainless Steel Grade AISI 420F | EN 1.4029 | DIN X29CrS13

AISI 420F | EN 1.4029 | DIN X29CrS13 - is a martensitic alloy. The grade is identical to stainless steel AISI 420, but with the addition of sulfur to significantly improve
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Stainless Steel Grade AISI 422 | AISI 616 | EN 1.4935 | DIN X20CrMoWV12-1

AISI 422 | AISI 616 | EN 1.4935 | DIN X20CrMoWV12-1 is a high-alloy stainless steel with a martensitic crystal structure and good corrosion resistance. It is mainly used for parts
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Stainless Steel Grade AISI 431 | EN 1.4057 | DIN X17CrNi16-2

AISI 431 | EN 1.4057 | DIN X17CrNi16-2 is a rust- and acid-resistant martensitic chromium steel with the addition of nickel. The formation of chromium carbides and associated
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