347 Stainless Steel Fasteners
347, S34700, X6CrNiNb18-10
347 Stainless Steel Fasteners are austenitic stainless steel fasteners manufactured from alloy containing chromium, nickel, molybdenum and nitrogen with restricted carbon content. Stainless Steel 347 Fasteners are used for corrosive environments. TorqBolt is an eminent 347 stainless steel fastener supplier in India.
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347 Stainless Steel Fasteners Properties
347 Stainless Steel Fasteners Classification
| Alloy Grade | UNS Designation |
|---|---|
| ASTM F2281 347 Type II | S34700 |
347 Stainless Steel Fasteners Chemical Requirements
| Alloy | C | Mn | P | S | Si | Cr | Ni | Cu | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| ASTM F2281 347 Type II | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-13.0 | . . . | . . . | Cb + Ta 10 x C min |
347 Stainless Steel Fasteners Mechanical Requirements
Mechanical Property Requirements at Room Temperature
| Alloy Grades | Condition | Marking | Nominal Diameter, in. | Full-Size Tests | Rockwell Hardness | Machined Specimen Tests | |||
|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength, min, ksi | Yield Strength, min, ksi | Tensile Strength, min, ksi | Yield Strength, min, ksi | Elongation 4D, min % | |||||
| ASTM F2281 347 Type II, Class A | A | F2D | All diameters | 75 | 30 | 85 to 95 HRB | 75 | 30 | 30 |
347 Stainless Steel Fasteners Heat Treatment
| Alloy Grade | Safe Scaling Temperature at Continuous Service Application | Safe Scaling Temperature at Continuous Service Application |
|---|---|---|
| ASTM F2281 347 Type II | 1600°F (871°C) | 1650°F (871°C) |