স্টেইনলেস স্টীল, অস্টেনাইটিক
201-201L-202-204 Stainless Steel Sheet & Plate
The 200 series of low nickel austenitic stainless steels.
Traditionally only popular in the United States, the 200 series of stainless steels are becoming more popular worldwide due to the significantly lower nickel content than the 300 series. As the price of nickel has risen, this has driven more interest in the 200 series as a viable and cost-effective alternative.
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল that offers a cost-effective alternative to 300 series stainless steel. By using higher manganese and lower nickel, it maintains good corrosion resistance, formability, and strength while reducing material costs.
With this increased interest, producers of stainless steels have been refining the 200 series with enhanced grades and new grades. Although typically to fulfil a specific requirement for a particular application, these new grades are often simply improvements to existing grades.
পিডিএফ ডাউনলোড করুন
অনুগ্রহ করে লক্ষ্য করুন
আপনি যদি যা খুঁজছেন তা না পান, অনুগ্রহ করে আপনার সাথে যোগাযোগ করুন। স্থানীয় সেবা কেন্দ্র আপনার নির্দিষ্ট চাহিদা অনুযায়ী.
Related Specifications
AISI 201 stainless steel corresponds to the following specifications:
- UNS20100/EN1.4372/SUS 201/STS 201
AISI 201L stainless steel corresponds to the following specifications:
- UNS20103/EN1.4371
AISI 202 stainless steel corresponds to the following specifications:
- UNS20200/EN1.4373/SUS 202/STS 202
AISI 204C stainless steel corresponds to the following specifications:
- UNS20400/EN1.4597
গুণাবলী
রাসায়নিক গঠন
| রাসায়নিক মৌল | % উপস্থাপন |
| ক্রোমিয়াম (Cr) | 16.00 - 18.00 |
| ম্যাঙ্গানিজ (Mn) | 6.80 - 8.50 |
| নিকেল (নি) | 2.00 - 5.00 |
| নাইট্রোজেন (N) | 0.00 - 0.25 |
| লৌহ (Fe) | সমতা |
যান্ত্রিক ধর্ম
| যান্ত্রিক সম্পত্তি | মূল্য |
| প্রমাণ চাপ | 310 Min MPa |
| টানজনিত শক্তি | 655 Min MPa |
| প্রসার A50 মিমি | 40 min % |
সাধারণ ভৌত বৈশিষ্ট্যসমূহ
| শারীরিক ধর্ম | মূল্য |
| ঘনত্ব | 7.80 g/cm³ |
| তাপীয় প্রসারণ | 17 x 10-6/K |
| স্থিতিস্থাপকতার মডিউল | ২০০ জিপিএ |
| তাপ পরিবাহকতা | 15 W/m.K |
Applications of 200 Series Stainless Steel
200 series stainless steel is an austenitic stainless steel with good corrosion resistance, excellent formability, and moderate strength. Its lower nickel content and cost-effectiveness make it suitable for a wide range of applications, particularly where মাঝারি রাসায়নিক প্রতিরোধ ক্ষমতা is acceptable.
1. Kitchenware and Appliances
Sinks, cookware, and utensils
Refrigerators, ovens, and other household appliances
Dish racks, trays, and food storage containers
2. Architectural and Decorative Applications
Interior and exterior panels
Handrails, elevator panels, and decorative trims
Ceiling panels and furniture components
3. Automotive Industry
Decorative trim and interior panels
Non-structural components where moderate corrosion resistance is sufficient
4. Industrial and Equipment Applications
Sheet metal parts for machinery and equipment
Light-duty fasteners, brackets, and structural components
Protective covers and housings for non-corrosive environments
5. Construction and Infrastructure
Decorative railings and cladding
Indoor fixtures and fittings exposed to mild corrosive conditions
সারসংক্ষেপ
200 series stainless steel is widely used in applications requiring good formability, moderate corrosion resistance, and cost efficiency. It is particularly popular in kitchenware, household appliances, architectural components, and decorative applications, where it serves as a more economical alternative to 300 series stainless steel.
Characteristics of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল that contains higher manganese and lower nickel compared to 300 series. It offers good corrosion resistance, excellent formability, and moderate strength, making it a cost-effective alternative to 304 stainless steel in many applications.
1. Chemical and Mechanical Features
High manganese content replaces some of the nickel, reducing cost
Carbon content is generally higher than 304, giving moderate strength
ভাল দৃঢ়তা এবং নমনীয়তা, suitable for cold working
২. ক্ষয় প্রতিরোধ ক্ষমতা
প্রতিরোধী atmospheric corrosion, mild chemicals, and water
Slightly lower corrosion resistance compared to 300 series, especially in chloride environments
Suitable for indoor and mildly corrosive outdoor conditions
3. Formability and Fabrication
উত্তম cold-forming characteristics: bending, drawing, and deep-drawing
Can be rolled into sheets, strips, and coils
Easily welded using standard methods, though some grades may require post-weld annealing
4. Mechanical Properties
Moderate strength in the annealed condition
Can achieve higher strength through শীতল কাজের প্রক্রিয়া due to work-hardening
Retains good toughness at low temperatures
৫. তাপ প্রতিরোধ ক্ষমতা
Performs adequately at মধ্যম তাপমাত্রা
Not suitable for high-temperature or prolonged heat exposure applications
6. Cost Advantage
Reduced nickel content lowers material cost while maintaining acceptable corrosion resistance and mechanical properties
Popular in kitchenware, appliances, and architectural applications where cost is a key factor
সারসংক্ষেপ
200 series stainless steel offers good corrosion resistance, excellent formability, moderate strength, and cost efficiency. এটি ব্যাপকভাবে ব্যবহৃত হয় appliances, kitchenware, automotive trim, and indoor architectural applications, serving as a more economical alternative to 300 series stainless steel.
বৈশিষ্ট্যসমূহ
তৈরি/নির্মাণ
Fabrication of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল এর জন্য পরিচিত excellent formability, moderate strength, and cost-effectiveness. Its fabrication characteristics make it suitable for cold forming, welding, and machining in a wide range of applications.
1. Cold Working
Excellent ductility and formability allow deep drawing, bending, rolling, and stamping.
Can be formed into complex shapes such as sheets, strips, coils, and decorative panels.
Work hardens faster than 300 series stainless steel, so intermediate annealing may be required for extensive forming.
2. Hot Working
Can be hot worked at temperatures between 1200–900°C (2190–1650°F).
Proper temperature control is needed to prevent grain growth or reduced toughness.
Suitable for forging, extrusion, and hot rolling operations.
৩. ওয়েল্ডিং
Can be welded using conventional methods: TIG, MIG, SMAW, and resistance welding.
Low carbon content or stabilized variants reduce risk of সংবেদনশীলকরণ and intergranular corrosion.
Post-weld annealing or passivation may be performed to restore corrosion resistance in welded areas.
৪. মেশিনিং
Moderate machinability; higher manganese content may make cutting slightly more challenging than 300 series.
Use sharp tools, proper lubrication, and controlled feed rates to avoid work hardening and tool wear.
৫. পৃষ্ঠতল চিকিৎসা
Can be polished, brushed, or patterned for architectural and decorative applications.
Pickling and passivation may enhance corrosion resistance after fabrication.
সারসংক্ষেপ
200 series stainless steel offers excellent fabrication capabilities, অন্তর্ভুক্ত cold forming, hot working, welding, and machining. Its combination of formability, moderate strength, and corrosion resistance makes it ideal for kitchenware, household appliances, automotive trim, and architectural components.
ঢালাইযোগ্যতা
Weldability of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ উত্তম ওয়েল্ডযোগ্যতা, though its higher manganese and lower nickel content require some considerations compared to 300 series stainless steel. Proper welding techniques ensure strong, corrosion-resistant joints.
১. উপযুক্ত ওয়েল্ডিং পদ্ধতি
TIG (Gas Tungsten Arc Welding, GTAW) – preferred for precision welding and thin sections
MIG (Gas Metal Arc Welding, GMAW) – suitable for thicker sections and faster welding
এসএমএডব্লিউ (প্রতিরক্ষিত ধাতু আর্ক ওয়েল্ডিং) – effective for structural components
প্রতিরোধক ওয়েল্ডিং (spot or seam) – used for sheet metal fabrication
2. Welding Considerations
High work-hardening rate may cause slight cracking in the heat-affected zone (HAZ) if not controlled.
Preheating is generally not required অধিকাংশ প্রয়োগের জন্য।.
Use compatible filler metals to maintain corrosion resistance and mechanical strength.
3. Filler Metals
সুপারিশকৃত ফিলার ধাতুসমূহ: matching 200 series or 300 series stainless steels
Low-carbon or stabilized grades help reduce risk of intergranular corrosion after welding
4. Post-Weld Treatments
Stress relieving may be applied for heavily welded components to reduce internal stresses
Pickling and passivation improve corrosion resistance of welded areas
For applications requiring higher corrosion resistance, consider post-weld solution annealing
৫. সীমাবদ্ধতা
Slightly lower corrosion resistance compared to 300 series in chloride environments
High manganese content can slightly reduce weld pool fluidity, requiring careful heat input control
Cold-working before welding may increase hardness in the HAZ
যন্ত্রযোগ্যতা
Machinability of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ মধ্যম যন্ত্রচালনযোগ্যতা. Its higher manganese and lower nickel content compared to 300 series stainless steel affect its cutting characteristics. Proper machining techniques are required to achieve optimal results.
1. General Machinability
যন্ত্রযোগ্যতা হল মধ্যমপন্থী, generally slightly lower than 304 stainless steel.
প্রবণতা রাখে কাজে শক্ত হওয়া rapidly during cutting, which can lead to tool wear and surface finish issues if not controlled.
উপযুক্ত turning, milling, drilling, and tapping with appropriate tooling.
২. টুলিং সুপারিশসমূহ
ব্যবহার করুন sharp, high-quality cutting tools (carbide or high-speed steel).
রক্ষণাবেক্ষণ করুন rigid setup to minimize vibration.
প্রয়োগ করুন adequate cutting speed, feed, and depth of cut to prevent work hardening.
3. Cooling and Lubrication
ব্যবহার করুন কাটिंग তরল বা কুল্যান্ট to reduce heat buildup and extend tool life.
Proper lubrication improves surface finish and prevents galling.
4. Work-Hardening Considerations
Cold working or previous forming increases hardness in the material.
Avoid repeated cuts in the same area to prevent rapid tool wear.
Light finishing passes are recommended to achieve smooth surfaces.
5. Applications Related to Machining
প্রয়োজনীয় উপাদানসমূহ precision machining, such as fasteners, brackets, and appliance parts
Sheet metal forming followed by light machining for finishing
Industrial and decorative parts where মধ্যম যন্ত্রচালনযোগ্যতা is acceptable
সারসংক্ষেপ
200 series stainless steel has মধ্যম যন্ত্রচালনযোগ্যতা, influenced by its high work-hardening rate and manganese content. Using sharp tools, proper speeds, feeds, and cooling, it can be efficiently machined for appliances, architectural, automotive, and light industrial applications.
ক্ষয় প্রতিরোধ
Corrosion Resistance of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ ভাল ক্ষয় প্রতিরোধ ক্ষমতা in many environments. While slightly lower than 300 series due to its reduced nickel content, it still performs well in indoor, mild outdoor, and non-aggressive chemical environments.
১. সাধারণ ক্ষয় প্রতিরোধ
প্রতিরোধ করে atmospheric corrosion in indoor and mild outdoor conditions.
উপযুক্ত household appliances, kitchenware, and decorative applications.
Forms a protective ক্রোমিয়াম অক্সাইড স্তর that prevents surface oxidation.
2. Resistance to Chlorides
Moderate resistance to গর্ত ও ফাটল ক্ষয় in chloride-containing environments.
সুপারিশ করা হয় না marine or highly saline environments.
3. Intergranular Corrosion
May be susceptible to আন্তঃকণিক ক্ষয় if welded without low-carbon or stabilized grades.
ব্যবহার করে 200 series low-carbon or stabilized variants reduces this risk.
4. Chemical Resistance
প্রতিরোধী mild acids and alkalis, such as those found in household and light industrial environments.
উপযুক্ত food contact equipment where aggressive chemicals are not present.
5. Applications Related to Corrosion Resistance
Kitchen sinks, cookware, and appliances
Interior architectural panels and decorative components
Light-duty industrial equipment in non-aggressive environments
সারসংক্ষেপ
200 series stainless steel provides ভাল ক্ষয় প্রতিরোধ ক্ষমতা in indoor, mild outdoor, and non-aggressive chemical environments. While slightly less resistant than 300 series, it is suitable for appliances, kitchenware, architectural, and light industrial applications, offering a cost-effective balance between corrosion resistance and performance.
শীতল কাজের প্রক্রিয়া
Cold Working of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ excellent ductility and formability, making it highly suitable for cold working processes. Cold working improves mechanical strength through কাজের মাধ্যমে কঠোরতা অর্জন while retaining good corrosion resistance.
১. সাধারণ সর্দি কাজ করার প্রক্রিয়া
রোলিং: Sheets, strips, and coils can be cold-rolled to precise thicknesses.
বক্রকরণ ও গঠন: Ideal for panels, trims, brackets, and complex shapes.
গভীর অঙ্কন: Suitable for sinks, kitchenware, and appliance components.
স্ট্যাম্পিং এবং পাঞ্চিং: Works well for industrial and decorative parts.
২. কাজের কঠোরীকরণ
শীতল কাজের পরিমাণ বৃদ্ধি পায় yield strength and tensile strength significantly.
High work-hardening rate allows for strong, durable components without additional alloying.
Overworking may reduce ductility, so মধ্যবর্তী এনিলিং may be required for extensive deformation.
৩. নির্মাণ সংক্রান্ত বিবেচনা
Cold working should be done gradually to prevent cracking.
Sharp tooling and proper lubrication improve surface finish and reduce tool wear.
শীতল-প্রক্রিয়াজাত উপাদানগুলির প্রয়োজন হতে পারে stress relief or annealing for applications requiring uniform mechanical properties.
৪. ঠান্ডা কাজের সাথে সম্পর্কিত প্রয়োগসমূহ
Kitchenware: sinks, trays, cookware
Appliance components: refrigerator panels, oven trays
Architectural panels, decorative trims, and furniture
Automotive parts: interior panels, trims, and brackets
সারসংক্ষেপ
200 series stainless steel has উত্তম ঠান্ডা কাজের বৈশিষ্ট্য, allowing it to be rolled, bent, formed, and deep-drawn into complex shapes. Cold working enhances strength while maintaining good corrosion resistance, making it ideal for kitchenware, appliances, architectural, and automotive applications.
তাপ চিকিৎসা
Heat Treatment of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল that is generally non-hardenable by conventional heat treatment. Its mechanical properties are primarily controlled through শীতল কাজের প্রক্রিয়া rather than heat treatment. However, heat treatment processes are sometimes used for stress relief, annealing, or restoring ductility after extensive fabrication.
১. এনিলিং
Performed to soften the material, relieve internal stresses, and restore ductility.
সাধারণ অ্যানিলিং তাপমাত্রা: ১০১০–১১২০°C (১৮৫০–২০৫০°F) for austenitizing.
Rapid cooling (water quenching or air cooling) is used to preserve the austenitic structure.
২. মানসিক চাপ মুক্তি
Applied after cold working or welding to reduce অবশিষ্ট চাপ.
Temperatures are typically in the range of ৪৫০–৬৫০°C (৮৪০–১২০০°F).
Helps prevent distortion and improves dimensional stability in fabricated components.
৩. স্থিতিশীলকরণ
Unlike 321 or 347 stainless steel, 200 series does not require niobium or titanium stabilization.
Low-carbon variants reduce the risk of সংবেদনশীলকরণ ওয়েল্ডিং করার সময়.
৪. তাপ চিকিত্সার প্রভাব
পুনরুদ্ধার করে নমনীয়তা after extensive cold working.
হ্রাস করে hardness induced by work hardening.
Does not significantly increase strength through conventional quenching or tempering.
৫. তাপ প্রক্রিয়াজাতকরণ সম্পর্কিত প্রয়োগসমূহ
Cold-worked kitchenware, appliances, and decorative panels needing stress relief
Welded components requiring dimensional stability
Formed industrial parts where residual stress removal is needed
সারসংক্ষেপ
200 series stainless steel is primarily strengthened through cold working. Heat treatment is generally used for অ্যানিলিং এবং চাপ মুক্তি to restore ductility and reduce residual stresses. It does not respond to conventional hardening, making it ideal for kitchenware, appliances, architectural, and light industrial applications where moderate strength and corrosion resistance are sufficient.
তাপ প্রতিরোধ ক্ষমতা
Heat Resistance of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ মাঝারি তাপ প্রতিরোধ. While it performs well at elevated temperatures, it is not designed for prolonged exposure to very high temperatures or highly oxidizing environments like 300 series or stabilized stainless steels (e.g., 321, 347).
১. ধারাবাহিক সেবা তাপমাত্রা
উপযুক্ত continuous service up to approximately 425°C (800°F).
Prolonged exposure above this temperature may reduce corrosion resistance and mechanical properties.
২. বিচ্ছিন্ন সংস্পর্শ
সহ্য করতে পারে intermittent exposure up to 870°C (1600°F) অক্সিডাইজিং বায়ুমণ্ডলে।.
Extended exposure may lead to scaling or oxidation on the surface.
৩. অক্সিডেশন প্রতিরোধ
Forms a protective ক্রোমিয়াম অক্সাইড স্তর at elevated temperatures, reducing surface degradation.
Resistance is adequate for indoor and moderate industrial applications.
৪. সীমাবদ্ধতা
উপযুক্ত নয় high-temperature chemical or marine environments.
Mechanical properties, such as tensile strength and ductility, may degrade under prolonged high heat.
Unlike stabilized grades, it does not resist intergranular attack during high-temperature service.
৫. তাপ প্রতিরোধ সংক্রান্ত প্রয়োগসমূহ
Kitchen appliances exposed to heat, such as ovens and stove components
Industrial equipment operating at moderate temperatures
Architectural components and panels in heated environments
Light-duty machinery or equipment requiring heat tolerance but not extreme high-temperature resistance
সারসংক্ষেপ
200 series stainless steel offers মাঝারি তাপ প্রতিরোধ, suitable for continuous service up to 425°C (800°F) and intermittent exposure up to ৮৭০° সেলসিয়াস (১৬০০° ফারেনহাইট). এটি আদর্শ appliances, architectural components, and industrial applications where moderate heat resistance is sufficient but does not require the high-temperature performance of 300 series or stabilized stainless steels.
গরম কাজ
Hot Working of 200 Series Stainless Steel
200 series stainless steel হল একটি অস্টেনাইটিক স্টেইনলেস স্টীল সহ excellent hot working characteristics. Hot working processes allow shaping and forming of the steel at elevated temperatures while maintaining ductility and minimizing work hardening.
১. উচ্চ কাজের তাপমাত্রা
Suitable for hot working between ১২০০–৯০০°সেলসিয়াস (২১৯০–১৬৫০°ফারেনহাইট).
Proper temperature control is critical to prevent grain growth or reduced toughness.
২. গরম কাজের প্রক্রিয়া
গরম রোলিং: Sheets, plates, and strips can be rolled to desired thickness.
ঢালাই: Suitable for producing structural components and heavy parts.
এক্সট্রুশন: Can form tubes, rods, and profiles at elevated temperatures.
গরম প্রেসিং এবং গঠন: Allows shaping complex components with reduced risk of cracking.
৩. গরম কাজের সুবিধা
হ্রাস করে কাজের মাধ্যমে কঠোরতা অর্জন ঠান্ডা কাজের তুলনায়।.
উন্নতি করে নমনীয়তা এবং দৃঢ়তা সম্পূর্ণ উপাদানটিতে।.
Enables the production of large, complex parts that cannot be formed cold.
৪. হট ওয়ার্কিং পরবর্তী প্রক্রিয়াকরণ
অ্যানিলিং may be applied to restore uniform mechanical properties and relieve residual stresses.
Pickling and passivation improve corrosion resistance after hot working.
৫. গরম কাজের সাথে সম্পর্কিত প্রয়োগসমূহ
Structural components in appliances, machinery, and light industrial equipment
Sheets, plates, and strips for architectural and decorative panels
Automotive trim, brackets, and supports requiring shaping at elevated temperatures
সারসংক্ষেপ
200 series stainless steel exhibits চমৎকার গরম কাজের কর্মক্ষমতা, allowing for rolling, forging, extrusion, and complex forming at ১২০০–৯০০°সেলসিয়াস. Hot working reduces work hardening, enhances ductility, and enables production of large or intricate parts, making it suitable for appliances, industrial equipment, architectural, and automotive applications.
