What is ASTM A 276 Grade?
what is ASTM A276 stainless steel?
ASTM A276 is a standard number in the United States.
ASTM A276 full name: ASTM A276/A276M-17 (Standard Specification for Stainless Steel Bars and Shapes) as shown below:
ASTM A276 is a standard for stainless steel bars, where “A276” represents the number of the standard. ASTM has developed a series of standards to regulate different metal materials and their related test methods and requirements. Among these standards, a276 specifically stipulates the relevant performance, chemical composition, manufacturing process, inspection methods, and other requirements of stainless steel bars.
Walmay Steel's A276 stainless steel
Walmay Metal offers a wide range of high performance austenitic stainless steels; austenitic-ferritic duplex stainless steels; ferritic stainless steels; martensitic stainless steels; stainless steel bars; stainless steel shapes. All of these are covered by the ASTM A276 specification.
Walmay Metal uses the 400 series stainless steels as an example to describe the ASTM A276 requirements for mechanical properties and heat treatment. These include: 403, 410, 414, 420, S42010, 431, 440A, 440B, 440C.
ASTM A276 Standard 400 Series Stainless Steel Heat Treatment Characteristics Requirements
| Heat treatment characteristics | ||||
| Grade A | Heat treatment temperature “F (℃), min | Quenching | Hardness, HRC minimum | |
| 403 | 1750(955) | air | 35 | |
| 410 | 1750(955) | air | 35 | |
| 414 | 1750(955) | oil | 42 | |
| 420 | 1825(955) | air | 50 | |
| S42010 | 1850(1010) | oil | 48 | |
| 431 | 1875(1020) | oil | 40 | |
| 440A | 1875(1020) | oil | 55 | |
| 440B | 1875(1020) | air | 56 | |
| 440C | 1875(1020) | oil | 58 | |
| A: The cross-sectional thickness of the specimen shall not exceed 3/8 inch (9.50 mm). | ||||
| B: The temperature tolerance shall be ±25°F (14°C). | ||||
ASTM A276 Standard 400 Series Stainless Steel Chemical Composition Requirements
| Grade | Finishing | Stretching strength | Tensile strength | Elongation | Sectional shrinkag% | HBW | ||
| ksi | MPa | ksi | MPa | |||||
| 430 | Hot or cold finishing | 60 | 415 | 30 | 207 | 20 | 45 | |
| S40976 | Hot or cold finishing | 60 | 415 | 20 | 140 | 20 | 45 | 244 |
| S44400 | Hot finishing | 60 | 415 | 45 | 310 | 20 | 45 | 217 |
| Cold finishing | 60 | 415 | 45 | 310 | 16 | 45 | 217 | |
| 446,XM-27 | Hot finishing | 65 | 450 | 40 | 275 | 20 | 45 | 219 |
| Cold finishing | 65 | 450 | 40 | 275 | 16 | 45 | 219 | |
| S44700 | Hot finishing | 70 | 480 | 55 | 380 | 20 | 40 | |
| Cold finishing | 75 | 520 | 60 | 415 | 15 | 30 | ||
| S44800 | Hot finishing | 70 | 480 | 55 | 380 | 20 | 40 | |
| Cold finishing | 75 | 520 | 60 | 415 | 15 | 30 | ||
| 403,410 | Hot finishing | 70 | 480 | 40 | 275 | 20 | 45 | |
| Cold finishing | 70 | 480 | 40 | 275 | 16 | 45 | ||
| 403,410 | Hot finishing | 100 | 690 | 80 | 550 | 15 | 45 | |
| Cold finishing | 100 | 690 | 80 | 550 | 12 | 40 | ||
| 403,410 | Hot finishing | 120 | 830 | 90 | 620 | 12 | 40 | |
| Cold finishing | 120 | 830 | 90 | 620 | 12 | 40 | ||
| 414 | Hot finishing | 298 | ||||||
| 414 | Cold finishing | 115 | 790 | 90 | 620 | 15 | 45 | |
| S41425 | Hot finishing | 120 | 825 | 95 | 655 | 15 | 45 | 321 |
| S41500 | Cold finishing | 115 | 795 | 90 | 620 | 15 | 45 | 295 |
| 420 | Hot finishing | 241 | ||||||
| Cold finishing | 255 | |||||||
| S42010 | Hot finishing | 235 | ||||||
| Cold finishing | 255 | |||||||
| 431 | Hot finishing | — | … | … | 285 | |||
| 440A | Cold finishing | 269 | ||||||
ASTM A276 standard 400 series stainless steel application
a276 material covers various types of stainless steel bar products. 400 series stainless steel products are widely used in machinery, automobiles, ships, petroleum, chemicals and other industrial fields. By implementing ASTM A276, it can be ensured that the stainless steel bars produced meet specific quality requirements, thereby ensuring the reliability and safety of the products.
ASTM A276 standard 400 series stainless steel quality assessment
ASTM A276 standard also contains methods for quality assessment of products. Manufacturers need to produce and inspect in accordance with the requirements of this standard to ensure that the performance and quality of the products meet the requirements.
At the same time, users or third parties can also accept and control the quality of products in accordance with the requirements of this standard. In this way, ASTM A276 ensures the quality level of stainless steel bars and promotes the development of industry.
Conclusion
A276 in ASTM A276 refers to a standard number for stainless steel bars. This standard specifies the performance, chemical composition, manufacturing process and inspection methods of stainless steel bars to ensure the quality and reliability of products. In related industrial fields, the implementation of this standard is of great significance to ensure product quality and promote industrial development.
Tabs:astm a276,a276,a276 material,a276 410
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