ASTM A276 Type XM 27
ASTM A276 Type XM 27 is a material grade specification for cold-finished or hot-finished bars in XM 27 stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. Boltport uses XM 27 bar stock to ASTM A276 specifications for manufacturing stainless steel XM 27 bolts, nuts, screws, studs, threaded rods, other fasteners and bar stock components for general engineering purposes.
ASTM A276 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for XM 27 stainless steel round bars, square bars, hexagon bars and other extruded shapes.
Chemical Composition
| Grade Symbol | UNS Number | Elements | Composition, % |
|---|---|---|---|
| Type XM 27 | S44627 | Carbon | 0.010 max |
| Manganese | 0.40 max | ||
| Phosphorus | 0.020 max | ||
| Sulfur | 0.020 max | ||
| Silicon | 0.40 max | ||
| Chromium | 25.00 - 27.5 | ||
| Nickel | 0.50 max | ||
| Molybdenum | 0.75 - 1.50 | ||
| Nitrogen | 0.015 max | ||
| Copper | 0.20 max | ||
| Columbiun | 0.5 - 0.20 |
Mechanical Properties
| Property | Value | |
|---|---|---|
| Finish | Hot-Finished | Cold Finished |
| Tensile Strength, min, ksi [MPa] | 65 [450] | 65 [450] |
| Yield Strength, min, ksi [MPa] | 40 [275] | 40 [275] |
| Elongation in 2 in. [50mm] or 4D, min, % | 20 | 16 |
| Reduction or Area, min, % | 45 | 45 |
| Brinell Hardness Number, HBW | 219 | 219 |
Fasteners
-
Bolts -
Screws -
Studs -
Nuts -
Threaded Rods -
Pins -
Washers -
Components