201
Typical reasons to choose 201
- Household appliances
- Kitchen utensils
- Sinks in suitable environments
- Doors and windows
- Railroad cars
- High-strength formed sheet components
Stainless steel grade comparison
201 vs 410 Stainless Steel
Compare 201 and 410 stainless steel by microstructure, chemistry, annealed strength, heat-treatment response, hardness, corrosion resistance, magnetism, thermal behavior, formability, weldability, machining and typical product forms.
Quick answer:
choose 201 when you need an austenitic stainless steel
with high room-temperature strength, ductility and strong
work hardening. Choose 410 when the component needs
heat-treatment response, higher achievable hardness,
wear resistance or martensitic mechanical properties
for valves, shafts, pump parts and similar equipment.
Austenitic work hardening vs martensitic heat treatment
201
EN 1.4372 · UNS S20100
- Structure Austenitic
- Typical Cr 16.1%
- Typical Ni 3.6%
- Typical Mn 6.6%
- Typical N 0.08%
- Strength route Cold work
410
EN 1.4006 · UNS S41000
- Structure Martensitic
- Typical C 0.12%
- Typical Cr 12.0%
- Nickel Not alloyed
- Magnetic Yes
- Strength route Heat treatment
Technical basis: Outokumpu Core 201/4372 and Dura 410/4006. Final 410 mechanical properties depend strongly on the supplied and final heat-treatment condition.
M03 · Decision summary
201 or 410 stainless steel: which one should you specify?
The choice depends first on whether the finished part needs an austenitic forming grade or a heat-treatable martensitic engineering grade. Their alloy chemistry, microstructure and strengthening mechanisms are fundamentally different.
Decision first:
use 201 for formed sheet components where high
annealed strength, ductility and work hardening matter.
Use 410 where final heat treatment, hardness,
wear resistance, mechanical machining or
martensitic properties are required.
Best for 201
High-strength formed stainless parts
201 combines high room-temperature strength, good ductility and a strong increase in strength during cold deformation.
Best for 410
Heat-treated mechanical components
410 can be hardened and tempered, allowing the final manufacturer to balance hardness, strength, toughness and wear behavior.
Recommendation reverser
Corrosion may rule out both
410 is intended for relatively mild corrosion conditions such as fresh water and steam. Severe chlorides or aggressive chemicals can require a higher-alloy grade.
| Decision factor | 201 stainless steel | 410 stainless steel |
|---|---|---|
| Microstructure | Austenitic. | Martensitic after appropriate heat treatment. |
| Strengthening method |
Strong cold-work hardening.
201 advantage |
Quenching and tempering.
Heat treatable |
| Annealed sheet strength | High. | Lower before final heat treatment. |
| Achievable hardness | Strength increases through cold work, not conventional quench hardening. |
Can be substantially increased
through heat treatment.
410 advantage |
| General corrosion | Higher chromium plus nitrogen gives the stronger general wet-corrosion starting point. | Suitable for mild environments, fresh water and steam. |
| Wear / mechanical parts | Not normally selected for quench-hardened wear parts. |
Valves, flanges, axles,
pump parts and brake components.
Preferred |
| Cold forming | Good ductility, but strong work hardening increases forming load. | Usually fabricated in a softer condition before final hardening. |
| Welding | Conventional austenitic welding behavior. | More demanding because martensitic transformations can increase cracking risk. |
| Magnetic behavior | Nominally non-magnetic annealed; cold work can increase magnetism. | Magnetic. |
| Relative alloy strategy | Low-nickel Cr-Mn-N austenitic. | Simple approximately 12% Cr martensitic chemistry. |
Selection rule:
if the drawing says hardness, quench-and-temper condition,
wear resistance or a martensitic mechanical specification,
start with 410. If it specifies high-strength formed sheet
with austenitic ductility, start with 201.
M04 · Technical data
201 vs 410 stainless steel properties
201 can be compared using a conventional annealed flat-product condition. 410 requires an additional condition column because annealed and quenched-and-tempered 410 can have very different strength, hardness and corrosion behavior.
Typical chemical composition
Typical manufacturer chemistry. The applicable ASTM / EN limits and actual MTC control final acceptance.
| Element / feature | 201 / S20100 | 410 / S41000 | Selection significance | Basis |
|---|---|---|---|---|
| Carbon, C | 0.05% | 0.12% | 410 contains enough carbon to develop martensitic hardening after appropriate heat treatment. | Typical manufacturer values |
| Chromium, Cr | 16.1% | 12.0% | 201 has significantly higher chromium content. | Typical manufacturer values |
| Nickel, Ni | 3.6% | Not intentionally alloyed | 410 uses a simpler Fe-Cr-C martensitic alloy strategy. | Grade design |
| Manganese, Mn | 6.6% | Standard residual / controlled level | High manganese is central to the 201 low-Ni austenitic design. | 201 typical chemistry |
| Nitrogen, N | 0.08% | Not a primary alloy addition | Nitrogen contributes to 201's elevated strength. | 201 typical chemistry |
| Molybdenum, Mo | No intentional addition | No intentional addition | Neither grade is designed as a high-Mo chloride-resistant alloy. | Grade chemistry |
| Microstructure | Austenitic | Martensitic | The structural difference drives heat treatment, hardness, magnetism and welding behavior. | Grade classification |
Annealed flat-product strength reference
ASTM-type flat-product reference values. Do not compare these directly with quenched-and-tempered 410 without stating condition.
| Property | 201 | 410 | Condition | Interpretation |
|---|---|---|---|---|
| Minimum yield strength | 269 MPa | 205 MPa | Annealed flat-product reference | 201 starts with the higher annealed yield requirement. |
| Minimum tensile strength | 515 MPa | 450 MPa | Annealed flat-product reference | 201 again has the higher minimum annealed strength. |
| Minimum elongation | 40% | 20% | Annealed reference | 201 provides the greater austenitic ductility. |
| Heat-treatment hardenable | No conventional quench hardening | Yes | Grade behavior | This is one of the most important differences between the grades. |
201 cold-rolled EN reference
EN 10088-2 cold-rolled coil / sheet reference values for Core 201/4372.
| Property | 201 value | Unit | Condition | Selection effect |
|---|---|---|---|---|
| Rp0.2 | 350 | MPa | Cold rolled | High annealed proof strength. |
| Rp1.0 | 380 | MPa | Cold rolled | Supports high-load sheet applications. |
| Rm | 680–880 | MPa | Cold rolled | High tensile-strength range. |
| Minimum elongation | 45 | % | Cold rolled | High strength remains combined with useful ductility. |
410 heat-treatment condition changes the answer
X12Cr13 / 1.4006 can be quenched and tempered. Mechanical properties therefore must always be attached to a heat-treatment condition.
| 410 condition | Rp0.2 | Rm | Elongation | Engineering meaning |
|---|---|---|---|---|
| Annealed / soft machining condition | Condition-dependent | Up to about 730 MPa in cited long-product reference | Condition-dependent | Supplied soft enough for fabrication and machining before final hardening. |
| QT650-type reference | ≥450 MPa | 650–850 MPa | ≥15% | Illustrates how heat treatment can move 410 into a much higher strength range. |
| Final hardened / tempered part | Specify required strength, hardness and toughness in the purchase or manufacturing specification. | Do not order 410 by grade name alone when final hardness controls. | ||
Typical physical properties
Metric manufacturer reference values at or near 20°C unless otherwise stated.
| Property | 201 | 410 | Condition | Engineering effect |
|---|---|---|---|---|
| Density | 7.8 kg/dm³ | 7.7 kg/dm³ | Reference value | 410 is slightly less dense. |
| Elastic modulus | 200 GPa | 215 GPa | 20°C | 410 has the higher cited elastic modulus. |
| Thermal expansion | Verify for project calculation | 10.5 ×10⁻⁶/K | 20–100°C for 410 | 410 has relatively low thermal expansion. |
| Thermal conductivity | 15 W/m·K | 30 W/m·K | 20°C | 410 conducts heat approximately twice as readily in these cited values. |
| Specific heat | Verify for project calculation | 460 J/kg·K | 20°C | Use verified 201 data if a thermal model requires it. |
| Electrical resistivity | 0.70 Ω·mm²/m | 0.60 Ω·mm²/m | 20°C | 410 has lower cited electrical resistivity. |
| Magnetizable | No* | Yes | Reference condition | 410 is magnetic; cold-worked 201 can develop a magnetic response. |
Important:
do not write “410 is stronger than 201”
or “201 is stronger than 410” without stating condition.
201 has high annealed strength,
while 410 can change dramatically after quenching
and tempering. The finished heat treatment
is part of the 410 material specification.
M05 · Product form matrix
Product forms and processing routes for 201 and 410
201 is strongly associated with rolled sheet, coil and strip applications. 410 is commonly associated with plate, long products and machined mechanical components, with availability varying by producer and condition.
Availability note:
this matrix describes typical product routes.
It does not represent live inventory.
Confirm dimensions, heat-treatment condition,
finish, quantity and certificate requirements.
| Product / process route | 201 | 410 | Procurement note |
|---|---|---|---|
| Cold-rolled coil & sheet | Common | Mill dependent | 201 is primarily a rolled flat-product grade. |
| Hot-rolled coil / sheet | Common | Source dependent | Confirm condition and downstream heat-treatment route. |
| Plate | Source dependent | Established route | 410 is commonly associated with mechanical engineering plate. |
| Precision strip | Available | Verify source | 201 can also be supplied in strength-controlled temper-rolled conditions. |
| Bar / long product | Not primary route | Typical route | Useful for shafts, valves and machined parts. |
| Heat-treated finished component | Cold-work strengthened | Key route | 410 final properties should be tied to hardness / heat-treatment condition. |
| Valves / pump parts | Not primary selection | Typical application | 410 is established for mechanical engineering components. |
| Decorative sheet | More suitable | Condition dependent | 410 is normally selected for mechanical performance, not decorative sheet appearance. |
M06 · Grade selector
Use forming, hardness and heat treatment to choose 201 or 410
Start by defining how the finished component will obtain its required strength. This usually separates 201 and 410 very quickly.
Preliminary result
Start with 410
If the part requires final hardness, quenching and tempering, wear resistance or martensitic mechanical behavior, 410 is the stronger starting point.
Send Conditions to an Engineer
STEP 01
Define product form
Sheet, coil, plate, bar or machined component.
STEP 02
Define final condition
Annealed, cold worked, hardened or quenched and tempered.
STEP 03
Define hardness
Specify required HRC, HB, tensile strength and toughness.
STEP 04
Define corrosion
Water, steam, chlorides, acids and cleaning chemicals.
M08 · Applications & limitations
Where 201 works, where 410 is justified, and when another stainless grade is safer
201 normally belongs in formed sheet applications. 410 belongs in a different engineering category: heat-treated, machined and wear-loaded components where the finished hardness and mechanical condition are part of the design.
410
Typical reasons to choose 410
- Valves
- Flanges
- Axles and shafts
- Pump parts
- Brake discs
- Press plates
- Mechanical engineering components
!
Conditions requiring another grade
- Marine exposure
- Warm concentrated chlorides
- Aggressive chemical processing
- Strong acids
- High-pitting-risk environments
- High hardness plus high corrosion resistance
Failure modes that can reverse the recommendation
Why does 410 heat treatment matter so much?
410 is martensitic and can be transformed
through hardening and tempering.
Different heat treatments can produce
very different strength, hardness,
toughness and corrosion behavior,
so the final condition must be specified.
Can 201 be hardened like 410?
No. 201 is an austenitic stainless steel.
It gains substantial strength through
cold deformation and work hardening,
but it is not conventionally hardened
by quenching in the same way as 410.
Is 410 more corrosion resistant because it is harder?
No. Hardness and corrosion resistance
are different properties.
410's corrosion behavior depends on
chemistry, surface finish and heat treatment.
It is primarily intended for relatively
mild environments such as fresh water and steam.
Can tempering reduce 410 corrosion resistance?
Yes. Martensitic corrosion resistance
is sensitive to heat treatment.
Carbide precipitation during certain
tempering conditions can reduce
the chromium available for corrosion resistance.
Is 410 easy to weld?
It requires more control than 201.
Martensitic steels can develop a hard
heat-affected zone and cold-cracking risk.
Low-hydrogen processes, preheat,
interpass-temperature control and,
when required, post-weld treatment
should be evaluated.
When should a higher-alloy martensitic grade be used?
If 410 does not provide enough
corrosion resistance, hardness,
hardenability or wear performance,
grades with more chromium,
molybdenum or carbon should
be evaluated against the actual application.
Important:
410 is not simply a “harder 201.”
It is a different metallurgical system
that normally requires a defined
heat-treatment route to deliver
the intended final properties.
Material image comparison
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M10 · Standards & equivalence
201 and 410 stainless steel grade designations
201 and 410 are not equivalent grades: one is an austenitic Cr-Mn-N stainless steel and the other is a martensitic Fe-Cr-C grade. Always carry the exact designation and heat-treatment condition into the purchase order.
| Designation system | 201 | 410 | Procurement note |
|---|---|---|---|
| ASTM / AISI type | 201 | 410 | Common North American designations. |
| UNS | S20100 | S41000 | Useful for precise alloy identification. |
| EN material number | 1.4372 | 1.4006 | European grade references. |
| EN name | X12CrMnNiN17-7-5 | X12Cr13 | The designations immediately show the different alloy concepts. |
| JIS reference | SUS201 | SUS410 | Verify the current JIS product standard before substitution. |
| GB reference | 12Cr17Mn6Ni5N | 12Cr13 | Cross-standard substitution requires chemistry and mechanical-condition review. |
| Microstructure | Austenitic | Martensitic | Not interchangeable by grade-number proximity. |
| ASTM A240/A240M | Flat-product reference | Flat-product reference | Use condition-specific mechanical requirements. |
| EN 10088-2 | Flat-product reference | Flat-product route where applicable | Check product form and delivery condition. |
| EN 10088-3 | Product-specific verification | Relevant to long products | 410 long-product mechanical properties vary with size and treatment condition. |
ASTM A240/A240M
Plate, sheet and strip
reference where applicable.
EN 10088-2
Technical delivery
requirements for flat products.
EN 10088-3
Relevant to stainless
long-product requirements.
Heat-treatment condition
Critical procurement field
for Type 410 mechanical components.
An “equivalent” grade designation does not automatically guarantee identical hardness, heat treatment, product form, mechanical properties or dimensional capability.
M11 · Direct answers
201 vs 410 stainless steel FAQ
Direct answers to common engineering and purchasing questions about 201 versus 410 stainless steel.
What is the main difference between 201 and 410 stainless steel?
201 is a low-nickel austenitic stainless steel designed for high strength, ductility and strong work hardening. 410 is a martensitic stainless steel that can be hardened and tempered to achieve different combinations of strength, hardness and toughness.
Is 410 stainless steel harder than 201?
Heat-treated 410 can achieve substantially higher hardness than annealed 201. However, the answer depends on condition: 201 itself can also become much stronger through cold working.
Can 201 stainless steel be heat treated?
201 is not conventionally hardened by quenching and tempering. Its strength is primarily increased through cold deformation and work hardening.
Can 410 stainless steel be heat treated?
Yes. Heat-treatment response is one of the defining characteristics of Type 410. The grade can be hardened and subsequently tempered to obtain the required property balance.
Which has better corrosion resistance, 201 or 410?
201 generally has the stronger wet-corrosion starting position because it contains significantly more chromium and nitrogen. 410 is intended for relatively mild environments and is specifically described for fresh water and steam service.
Is 410 stainless steel magnetic?
Yes. 410 is martensitic and magnetic. Annealed 201 is nominally non-magnetic, although cold deformation can create a stronger magnetic response.
Is 410 stainless steel easy to weld?
It is more demanding to weld than conventional austenitic stainless steel. Martensitic heat-affected zones can become hard and susceptible to cold cracking, so welding procedure, preheat and post-weld treatment may need engineering control.
What is 410 stainless steel commonly used for?
Common application families include valves, flanges, axles, pump parts, brake discs, press plates and other mechanical engineering components.
Can 201 replace 410 stainless steel?
Not when the design depends on martensitic heat treatment, a specified final hardness, wear behavior or a 410-specific mechanical standard. The grades use fundamentally different strengthening mechanisms.
M13 · Sources & technical review
Technical basis for this 201 vs 410 comparison
This comparison separates annealed properties from heat-treated properties so the martensitic behavior of 410 is not incorrectly compared with a single austenitic 201 strength value.
Primary technical references
- Outokumpu Core Range Datasheet 201/4372 chemistry, EN and ASTM mechanical references, physical properties, product forms and applications.
- Outokumpu Core 201/4372 Low-nickel Cr-Mn-N chemistry, high work hardening, formability and application guidance.
- Outokumpu Dura Range Datasheet 410/4006 chemistry, heat-treatment behavior, physical properties, corrosion guidance and fabrication.
- Outokumpu Dura 410/4006 Martensitic S41000 application, product-form and fresh-water / steam corrosion guidance.
- ASTM A240/A240M Plate, sheet and strip chemistry and mechanical-property reference.
- EN 10088-2 Flat-product condition and mechanical-property reference.
- EN 10088-3 Long-product reference relevant to 1.4006 mechanical components.
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Update note
Initial T09 page prepared with heat-treatment condition separation, room-temperature comparisons, failure-mode guidance, interactive selection logic and RFQ requirements.
M14 · Ask an engineer
Still deciding between 201 and 410?
Send the finished-part requirements, especially heat treatment and hardness, so the material can be reviewed against the actual manufacturing route.
- 201, 410 or alternative grade under consideration
- Sheet, coil, strip, plate, bar or machined component
- Thickness, diameter and dimensional tolerance
- Required yield and tensile strength
- Required HRC / HB hardness
- Annealed, cold-worked or heat-treated condition
- Quenching method
- Tempering condition
- Required toughness or impact performance
- Wear / abrasion requirement
- Machining requirement
- Welding process and joint details
- Fresh water, steam or chemical exposure
- Chloride concentration
- Operating temperature
- Surface finish requirement
- Applicable ASTM, EN, JIS, GB or customer standard
- Quantity, destination, due date and MTC requirement
Send your material requirement
For 410 components, include the final hardness, heat-treatment condition, dimensions, welding, machining, corrosion exposure and required material standard.