Stock sizes in music wire and stainless steel
We offers a broad variety of helical compression springs in the selection. They are reliable, inexpensive and efficient - the right combination for general-purpose use throughout industry.
Material
 | Music Wire - Per ASTM-A228 or AMS 5112. Music wire springs are not recommended for applications where the temperature exceeds 121 deg. C (250 deg F.) |
| Stainless Steel Type 302 - ASTM-A313 or AMS 5688 spring tempered (chemical & physical only). Stainless steel springs are not recommended for applications where the temperature exceeds 260 deg. C (500 deg. F). |
| Type 302 stainless steel is slightly magnetic. Surface of stainless steel may have a residue of nickel on the surface. This is normal and will not affect the function of the part. |
| Wire diameter is prior to forming |
| Music wire will be furnished unless stainless steel is specified. When inquiring or ordering, use letter "M" or letter "S" as suffix to designate music wire or stainless steel, respectively. |
| No charge for certificate of compliance when requested; certificate of chemical analysis available, see price book. |
Direction of Helix - Right Hand
Ends
| Squared and ground. Ends to be square within 30 with axis O.D. size 0.057-0.088 in (1.45-2.24 mm) squared end not ground Free length L is for reference use only. Load P is attained at length L1. For stainless steel multiply P by 0.833. |
| Load values shown are for music wire |
| For normal service, springs should not be compressed below L1. (May take a set beyond L1) |
| To determine load P at any length other than L1, multiply the proposed deflection by the rate R. *[P = (L-Lx) x R]. When stainless steel is used the value for rate R must be corrected by multiplying R by 0.833. |
Finishes
Standard finish is that of the normal wire. Shot-peened and plated finishes furnished on request. Allow sufficient additional time for special finishes.
Tolerances
O.D. (English) | O.D. (Metric) |
0.057 to 0.119 in ± 0.003 in | 1.45 to 3.02 mm ± 0.08 mm |
0.120 to 0.240 in ± 0.005 in | 3.05 to 6.10 mm ± 0.13 mm |
0.241 to 0.500 in ± 0.008 in | 6.12 to 12.70 mm ± 0.20 mm |
0.501 to 1.000 in ± 0.015 in | 12.73 to 25.40 mm ± 0.38 mm |
1.001 to 1.225 in ± 0.020 in | 25.43 to 31.12 mm ± 0.51 mm |
1.226 to 1.460 in ± 0.030 in | 31.14 to 37.08 mm ± 0.76 mm |
1.461 to 2.000 in ± 0.040 in | 37.11 to 50.80 mm ± 1.02 mm |
Load, P at L1 ± 10%
Spring Rate, R ± 10%
*Lx = Desired Load Length
