409 is equivalent to
Corrosion Resistance of 409 Stainless Steel
Moderate corrosion resistance. Less than 304 but suitable for mild environments.
Heat Resistance of 409 Stainless Steel
최대 675°C까지 우수한 산화 저항성을 가짐.
Machinability of 409 Stainless Steel
409 stainless steel has moderate machinability, similar to carbon steel. Proper lubrication and chip breakers improve performance.
Welding of 409 Stainless Steel
모든 표준 방법으로 용접을 수행할 수 있습니다. 예열 및 용접 후 열처리는 성능을 개선합니다.
Hot Working of 409 Stainless Steel
Hot working should be done at 1500 – 1800°F (816 – 982°C). Post-work annealing is recommended.
Annealing of 409 Stainless Steel
어닐링은 1450~1650°F(788~899°C)에서 수행한 후 천천히 냉각합니다.
Hardening of 409 Stainless Steel
409 stainless steel cannot be hardened by heat treatment. It can be slightly hardened by cold working.
Cold working of 409 Stainless Steel
409 can be cold worked but is more challenging than austenitic grades.
409 Stainless Steel Mechanical Property | ||||
재산 | 항복 강도, 최소 (ksi) | 인장 강도, 최소 (ksi) | 신장률, 최소 (%) | 경도, 최대 (Rb) |
값 | 25 | 55 | 22 | 88 |
Physical Properties of 409 Stainless Steel | |
재산 | 값 |
밀도 | 0.280 lb/in³ |
탄성계수 | 29.0 x 10^6 프사이 |
열팽창 계수(68-212°F) | 5.84 x 10^-6 /°F |
열전도도 | 9.4 Btu/ft·hr·°F |
비열 | 0.114 Btu/lb·°F |
전기 저항률 | 28.3 Microohm-in |
등급 | C (최대) | Mn (최대) | 시(최대) | P (최대) | S (최대) | 크 | Ni (최대) | 철(균형) | N (최대) | Ti (max) |
409 | 0.08 | 1 | 1 | 0.045 | 0.03 | 10.50-11.75 | 0.5 | 균형 | - | 0.75 |
409 stainless steel exhibits excellent resistance to high temperatures and corrosion, making it ideal for automotive exhaust systems.
The performance of 409 stainless steel is exceptional, and its relatively low cost makes it more economical and affordable.
For High-Performance Exhaust Systems:
Choose 304 Stainless Steel for its superior corrosion resistance, especially in environments exposed to salt or industrial pollutants. This choice is ideal for customers seeking long-term durability and performance.
For Standard Automotive Exhaust Systems:
Choose 409 Stainless Steel due to its good high-temperature resistance and cost-effectiveness. It is suitable for most automotive applications where extreme environmental exposure is not a concern, providing a balance between performance and affordability.
재산 | 304 스테인리스 스틸 | 409 스테인리스 스틸 |
구성 | 18-20% Cr, 8-12% Ni, ≤0.08% C | 10.5-11.75% Cr, ≤0.03% C |
부식 저항성 | Excellent in various environments | Good, particularly in high-temperature exhaust conditions |
Temperature Resistance | Up to 870°C (1598°F) in continuous service | Up to 675°C (1247°F) in continuous service |
성형성 | Excellent | Good |
Weldability | Excellent | Good |
자기적 특성 | Non-magnetic in annealed condition | Slightly magnetic |
비용 | Higher | Lower |
304 Stainless Steel:
장점: Offers superior corrosion resistance, particularly in marine or industrial environments. Excellent formability and weldability make it suitable for complex shapes and joints in exhaust systems.
Disadvantages: Higher cost compared to 409 stainless steel.
Typical Use: Ideal for high-performance and long-lasting exhaust systems, especially where the exhaust system may be exposed to harsh environments or salt (e.g., coastal areas).
409 Stainless Steel:
장점: Good oxidation and corrosion resistance at high temperatures, making it suitable for automotive exhaust systems. It is more cost-effective than 304, providing a good balance between performance and price.
Disadvantages: Lower overall corrosion resistance compared to 304, and slightly less formability and weldability.
Typical Use: Commonly used in standard automotive exhaust systems where cost considerations are important, and the exhaust system does not face extremely harsh environmental conditions.
유형 | 폭(mm) | 무게(MT) | 두께(mm) | ||||
409 Coil | 1000, 1219, 1240, 1500 또는 맞춤형 | 3-10 | 0.15-3.0 |
유형 | 폭(mm) | 길이(mm) | 두께(mm) | |||||||||
409 Sheets | 1000, 1219, 1240, 1500 또는 맞춤형 | 2000, 2438, 2500, 3000, 3048 | 0.3-3.0 |
201, 304, 304L, 316, 316L 및 430 등의 스테인리스 스틸 코일 및 시트에 대한 기본 마감 옵션은 다음과 같습니다. 2B, BA, 1위, 4위로 마무리. 다른 등급 및 마감재에 대한 자세한 내용은 당사 전문 영업팀에 문의하세요.
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