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Fasteners are those hardware devices that are used in industries for joining or affixing two or more components together. And if you are looking for the right manufacturer to buy the best quality of ASTM A320 L7/L7M, A194 7M/7 Fasteners, then Metal Yard is the right option for you. They are one of the leading and reputed manufacturers who provide their customers with a high quality of fasteners in different shapes, sizes, and specifications. These fasteners are known best for their high tensile strength, corrosion resistance, durability, workability and long functional life. We make use of high-quality raw material that is well tested and inspected by quality experts and inspection agencies. In fact, we use the best equipment and advanced technology for manufacturing these fasteners.
There are several types and forms of fasteners available in the market but we provide you the best quality of fasteners in different shapes and sizes as per your demand and application requirement. Furthermore, there are various industries and applications where the use of fasteners is used like the petrochemical industry, chemical processing, and fertilizer industry.
These ASTM A320 L7/L7M, A194 7M/7 Fasteners cover both national and international specifications and including ASTM, ASME and DIN standard. They are available to customers of different sizes that vary from 3mm to 200mm and more. Furthermore, to check the quality of these fasteners various tests and inspections are done like the flaring test, hardness test, raw material test and third-party inspection. With it, these fasteners are packed in the high quality of packaging material which prevents them from rusting and damages.
Specification : ASTM A194, A320 / ASME SA194, SA320
Length : 30 mm to 2000 mm, Custom Lengths
Materials : Alloy Steel
Surface Finish : Blackening, Cadmium Zinc plated, Galvanized, Hot Dip Galvanized, Nickel Plated, Buffing
| Grade | C | Si | Mn | P | S | Cr | Mo | Al |
| Grade L7/L7M | 0,38 | 0,15 | 0,75 | - | - | 0,80 | 0,15 | 0,020 |
| 0,48 | 0,35 | 1,00 | 0,035 | 0,040 | 1,10 | 0,25 | 0,050 |
| Grade | C | Mn | P | Su | Si | Cr | N | Mo |
| Grade 7, 7M (4140) | 0.37 | 0.65 | 0.035 | 0.04 | 0.15 | 0.75 | - | 0.15 |
| 0.49 | 1.10 | - | - | 0.35 | 1.20 | - | 0.25 |
| Specification | Marking | Nom. Size, In. | Tempering Temp. °F | Proof Load Stress | Hardness | |
| A194 Grd 7 | 7 | 1/4 - 4 | 1100 | 175 / 150 | C24 / B159 | C38 / B237 |
| Specification | Size mm | Rp 0,2 (MPa) min | Rm (MPa) min | A4 (%) min | Z (%) min | KV (J) min | Hardness max |
| A320 L7 | ≤65 | 725 | 860 | 16 | 50 | 27 (-101°C) | - |
| A320 L7M | ≤65 | 690 | 550 | 18 | 50 | 27 (-73°C) | 235 HB or 99 HRB |
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