Compression Springs
Stock sizes in music wire and stainless steel
Associated Spring Raymond provides design engineers, draftsmen, production
and maintenance departments with a broad variety of precision-engineered helical
compression springs. They are reliable, inexpensive and efficient -- the right
combination for general-purpose use throughout industry.
Materials
Part numbers starting with C in the following catalog pages:
- Music Wire: ASTM A228 or AMS 5112
- Stainless Steel: Type 302 per ASTM A313 or AMS 5688 spring temper (chemical
and physical only)
Part numbers starting with D in the following catalog pages:
- Music Wire: DIN 17223 or JIS G4314 SWP-A/B or AMS 5112
- Stainless Steel: Type 301, 302 or 304 per DIN 17224 or JIS G4314 SUS
302/304 or AMS 5688 spring temper (chemical and physical only)
Music wire will be furnished unless stainless steel is specified. When
inquiring or ordering, please use letter "M" or Letter "S" as suffix to
designate music wire or stainless steel, respectively.
Music wire springs are not recommended for applications where the temperature
exceeds 121 degrees C. (250 degrees F.). Stainless steel is not recommended
above 260 degrees C. (500 degrees F.).
Stainless steel is slightly magnetic due to cold working during
manufacturing. Stainless steel springs may have a slight residue of nickel on
the surface of the wire. This is normal and will not affect the function of the
part.
Wire diameter is prior to forming.
No charge for certificate of compliance when requested; certificate of
chemical analysis available only for part numbers starting with C in the
following pages for an additional charge.
Coil Direction (helix)
Right hand. Coil count is for reference only.
Free Length
Free length is reference only.
Ends
Part numbers starting with C in the following pages:
- O.D. sizes from 0.057-0.088in (1.45-2.24mm): squared not ground.
- O.D. sizes from 0.120-1.937in (3.05-49.20mm): squared and ground.
However springs with wire diameter ≤ 0.020in (.5mm) may be squared not
ground.
Part numbers starting with D in the following pages:
- Wire up to and including 0.8mm (0.030in): squared and not ground.
- Wire greater than 0.8mm (0.030in): squared and ground.
Loads & Spring Rate
- Load and rate values are shown for both music wire and stainless steel in
their respective columns.
- Load P at L1 and spring rate R are +/- 10.0% -- load at any other point is
for reference only.
- For normal service, springs should not be compressed below L1 (may take set
beyond L1). Load values at lengths other than L1 can be approximated by
multiplying the proposed deflection by the rate R. P = (L – Lx) x R where Lx is
the new load height. Load at Lx should be reference only. Contact our
engineering department if more stringent requirements are needed.
Surface Finish
Music Wire: oil
Stainless steel: Only part numbers starting with C in the following pages are
passivated. All others are plain wire.
Special finishes available upon request.
Packaging
Parts are bulk-packed. Due to physical characteristics, tangling can occur
during transit on wire sizes under .035" (.89mm). Please inquire about special
packaging when ordering.
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