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Atlas metal manufacture the Extension Springs with full diameter loops (either machine or crossover center) at a random position with the exception of Metric Extension Springs specified to comply with DIN Standards. Loop openings are approximately one wire diameter and the direction of wind is factory optional. This stock series is available in both Inch and Metric designs. If an exact direction of helix is required for an application, custom extension springs can be made to your specifications. To fit assembly functions, a multitude of hook and loop configurations may be specified. Close winding of the body provides the initial tension in the spring to help manipulate the load and rate.
Material | Grade | Specification |
High Carbon Spring Wire | Music Wire | ASTM A228 |
Hard Drawn | ASTM A227 | |
Oil Tempered | ASTM A229 | |
Alloy Steel Wire | Chrome Silicon | ASTM A401 |
Chrome Silicon Valve | ASTM A877 | |
Stainless Steel Wire | 302 | ASTM A313 (AISI 302/304) |
304 | ASTM A313 (AISI 302/304) | |
316 | ASTM A313 (AISI 316) | |
17-7 PH | ASTM A313 (631) | |
Non-Ferrous Alloy Wire | Phosphor Bronze | ASTM B159 |
Beryllium Copper | ASTM B197 | |
Brass | ASTM B134 | |
Copper | ASTM B152 | |
High-Temperature Alloy Wire | Inconel 600 | ASTM B166 |
Inconel x750 | AMS 5698, 5699 | |
Special Purpose Alloys – Wire | Elgiloy | AMS 5833 |
Low Carbon Spring Wire | Cold Rolled Steel (CRS) | ASTM A510 / ASTM A853 |
Room 1001, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
+86-574-8801-3900
+86-13185993822
Room 1001, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
