Stainless steel is finding its way into every industry, including aerospace and kitchen equipment. But have you ever wondered what ensures the consistent quality of steel products? That’s where ASTM and JIS standards come in!
They provide a set of guidelines defining the testing procedures for materials. In addition, they outline technical specifications for different materials and products. If you want to know more about ASTM and JIS standards, continue reading!
What is the ASTM Standard?
The ASTM standard is developed by ASTM International, formerly the American Society for Testing and Materials.
It’s a globally recognized organization with thousands of users, material producers, and scientists. They collaborate to identify the best traits and testing methods for many materials.
Typically, ASTM has over 12,000 standards for materials like paints, textiles, metal, and others. You can rely on these standards to know the material’s exact composition and mechanical properties.
How to Read ASTM Standard Designations?
ASTM codes have a letter followed by particular numerical digits. These letters inform users about the process, material, and product in question. So, let’s learn about them to make the whole process of reading ASTM grades easy:
- A: Ferrous metals and other products like steel
- B: Non-ferrous metals like coatings
- C: Ceramic, cementations, concrete, and other masonry materials
- F: End use materials and products (bolts)
- G: Processes, such as coatings, weathering, deterioration, and degradation of products
- H: Joint committee and district recipients
However, the sequential numbers that come after these letters are just for representation. They have no relationship with material or metal properties.
Different ASTM Steel Grades
Here’s an overview of different ASTM steel grades that help you pick the right material:
ASTM A6
The ASTM A6 grade is a set of general requirements for rolled steel products. It covers different aspects like mill conditioning and dimensional tolerances.
ASTM A36
Another one of the popular ASTM steel grades is A36, which deals with mild to low-carbon steel. The materials or products that fall within this category have high weldability. In addition, they have the ease of machining, drilling, and punching. The tensile strength of ASTM A36 products is also high, ranging from 58,000 to 80,000 Psi.
ASTM A1011
It’s a standard specification for hot-rolled steel sheets and strip carbon. The carbon content of such products is quite low, no more than 2.1%. The best part is their high weather resistance, making them suitable for agricultural equipment.
| Grade | Specialty |
| ASTM A6 | Rolled Steel Products |
| ASTM A36 | Mild to Low Carbon Steel Products |
| ASTM A1011 | Hot Rolled Steel Sheet and Carbon Strip |
What is the JIS Standard?
The Japanese Industrial Standards Committee created the JIS Standards. This system has a rich history, dating back to the 1920s.
It was the industrialization era. Japanese manufacturers needed quality and safety standards. However, the Japanese government took time and came up with JIS standards in 1945. These standards cover engineering and manufacturing, IT, materials, electronics, and machinery.
Like ISO, this system guarantees the quality, reliability, and safety of Japanese products. This paves the way for global market access for Japanese products. It also ensures better customer satisfaction.
How to Read JIS Standards?
JIS standards typically have JIS followed by a letter that indicates a particular field. Then comes the four unique digits for each standard, and finally, the revision year. Let’s see what each letter entails in JIS standards for better understanding:
- G: Iron or Steel
- H: Non-ferrous materials
- K: Chemical Engineering
- C: Electric and Electronics
- L: Textile Standards
Different JIS Steel Grades
The following are a few JIS steel grades:
JIS G 3101
The JIS G 3101 standard is for hot-rolled steel plates, sheets, and strips. These products have good strength and weldability. Common applications include bridges, ships, and other structures.
JIS G 3103
This standard applies to hot-rolled carbon steel and molybdenum alloy steel plates. These plates are used in boilers and pressure vessels.
JIS G 3444
The JIS G 3444 standard covers carbon steel tubes. These tubes are useful in civil engineering and architecture. It finds applications in steel towers, scaffolding, and struts.
| Grade | Specialty |
| JIS G 3101 | Rolled Steel for General Purposes |
| JIS G 3103 | Hot Rolled Carbon Steel and Molybdenum Alloy Steel Plates |
| JIS G 3444 | Structural Tubes of Carbon Steel |
Conclusion
Both ASTM and JIS standards focus on improving the quality and safety of different materials. Are you looking for high-quality steel that meets international standards? Jianglin is your one-stop shop. Contact us today to get a quote!
