65Mn Spring Steel Springs Reference Data

65Mn Spring Steel Spring Material Reference Data: 58 catalog-backed reference configurations are available for sizing review. Use the ranges below to compare the starting envelope before submitting a drawing for final quotation.

Wire diameter: 0.15-12 mm (0.0059-0.4724 in)
Outside diameter: 1.29-152.9 mm (0.0508-6.0197 in)
Inside diameter: 0.99-128.9 mm (0.039-5.0748 in)
Free length: 2.54-350.89 mm (0.1-13.8146 in)
Spring rate: 0.036-397.636 N/mm
Maximum load: 0.07-11257.06 N

Catalog rows are reference configurations for custom design review. Final dimensions, loads, tolerances and material certifications are confirmed during quotation.

Products Represented in This Data

These rows show which product designs are represented in the reference data. Open the matching product for geometry, quotation inputs, application guidance and RFQ details.

Conical Compression Springs13 matching rowsConical Compression Springs Application Guide
Custom-Shaped Springs1 matching rowCustom-Shaped Springs Application Guide
Cylindrical Compression Springs7 matching rowsCylindrical Compression Springs Application Guide
Double-Leg Torsion Springs6 matching rowsDouble-Leg Torsion Springs Application Guide
English-Hook Extension Springs3 matching rowsEnglish-Hook Extension Springs Application Guide
German-Hook Extension Springs1 matching rowGerman-Hook Extension Springs Application Guide
Hairpin Springs1 matching rowHairpin Springs Application Guide
Offset-Hook Extension Springs2 matching rowsOffset-Hook Extension Springs Application Guide
Round-Hook Extension Springs3 matching rowsRound-Hook Extension Springs Application Guide
Single-Leg Torsion Springs5 matching rowsSingle-Leg Torsion Springs Application Guide
Straight-Leg Torsion Springs2 matching rowsStraight-Leg Torsion Springs Application Guide
Torsion Bar Springs2 matching rowsTorsion Bar Springs Application Guide

Engineering Material Reference

65Mn Spring Steel is included here as an engineering material reference. This page summarizes published material properties and shows catalog-backed spring rows when they exist.

Primary grade	GB/ T 1222 65Mn
Standards	GB/ T 1222; Chinese grade；SAE 1065/ EN C67Sapproximate family only
Corrosion behavior	low in bare condition; specify passivation, phosphate, zinc, black oxide, oil or coating when corrosion protection is required
Temperature note	screening range -40 to 120 C, to be confirmed against final stress and environment
Tensile strength	900-1700 MPa
Elastic modulus	200-210 GPa
Shear modulus	77-82 GPa
Density	7.85 g/cm3

Matching Reference Configurations

Model	Product	Wire / thickness	OD	ID	Free length	Rate (N/mm)	Material	Max load (N)
SE-015-0013-0105-0540	German-Hook Extension Springs	0.15 mm	1.29 mm	0.99 mm	10.48 mm	0.065	65Mn Spring Steel	0.33
SC-020-0023-0052-0260	Tower-Shaped Compression Springs	0.2 mm	2.28 mm	1.88 mm	5.24 mm	0.1	65Mn Spring Steel	0.11
SE-020-0024-0107-0553	Round-Hook Extension Springs	0.2 mm	2.44 mm	2.04 mm	10.68 mm	0.036	65Mn Spring Steel	0.1
SC-020-0028-0025-0412	Variable-Diameter Compression Springs	0.2 mm	2.76 mm	2.36 mm	2.54 mm	0.145	65Mn Spring Steel	0.07
SE-040-0034-0104-0523	Round-Hook Extension Springs	0.4 mm	3.37 mm	2.57 mm	10.42 mm	0.607	65Mn Spring Steel	1.65
SC-040-0041-0142-0237	Conical Compression Springs	0.4 mm	4.1 mm	3.3 mm	14.21 mm	0.184	65Mn Spring Steel	0.31
SE-050-0027-0128-0576	English-Hook Extension Springs	0.5 mm	2.74 mm	1.74 mm	12.75 mm	4.224	65Mn Spring Steel	14.73
ST-050-0052-0026-0614	Double-Leg Torsion Springs	0.5 mm	5.19 mm	4.19 mm	2.57 mm	0.147	65Mn Spring Steel	20.29
SE-050-0062-0355-0427	Offset-Hook Extension Springs	0.5 mm	6.19 mm	5.19 mm	35.54 mm	0.056	65Mn Spring Steel	0.5
SC-050-0072-0107-0077	Cylindrical Compression Springs	0.5 mm	7.17 mm	6.17 mm	10.72 mm	0.164	65Mn Spring Steel	0.35
SC-050-0077-0140-0101	Conical Compression Springs	0.5 mm	7.69 mm	6.69 mm	14.04 mm	0.097	65Mn Spring Steel	0.31
SW-050-0085-1838-0761	Hairpin Springs	0.5 mm	8.46 mm	7.46 mm	183.76 mm	0.222	65Mn Spring Steel	7.3
SC-060-0035-0130-0345	Conical Compression Springs	0.6 mm	3.5 mm	2.3 mm	13.05 mm	4.165	65Mn Spring Steel	11.2
ST-060-0063-0087-0717	Straight-Leg Torsion Springs	0.6 mm	6.33 mm	5.13 mm	8.72 mm	0.088	65Mn Spring Steel	15.12
SC-060-0084-0153-0169	Tower-Shaped Compression Springs	0.6 mm	8.35 mm	7.15 mm	15.31 mm	0.14	65Mn Spring Steel	0.33
ST-080-0046-0050-0623	Single-Leg Torsion Springs	0.8 mm	4.64 mm	3.04 mm	5.03 mm	1.016	65Mn Spring Steel	142.8
ST-080-0051-0082-0642	Double-Leg Torsion Springs	0.8 mm	5.07 mm	3.47 mm	8.16 mm	0.556	65Mn Spring Steel	57.56
SC-100-0055-0234-0057	Cylindrical Compression Springs	1 mm	5.52 mm	3.52 mm	23.35 mm	6.042	65Mn Spring Steel	16.98
ST-100-0128-0089-0633	Single-Leg Torsion Springs	1 mm	12.76 mm	10.76 mm	8.86 mm	0.576	65Mn Spring Steel	18.3
ST-100-0152-0084-0622	Straight-Leg Torsion Springs	1 mm	15.2 mm	13.2 mm	8.45 mm	0.501	65Mn Spring Steel	37.86
SE-120-0057-0538-0574	Offset-Hook Extension Springs	1.2 mm	5.66 mm	3.26 mm	53.79 mm	7.124	65Mn Spring Steel	91.85
ST-120-0105-0212-0712	Double-Leg Torsion Springs	1.2 mm	10.48 mm	8.08 mm	21.25 mm	0.743	65Mn Spring Steel	62.69
ST-120-0144-0040-0592	Double-Leg Torsion Springs	1.2 mm	14.41 mm	12.01 mm	3.98 mm	2.845	65Mn Spring Steel	122.6
SE-150-0077-0574-0543	English-Hook Extension Springs	1.5 mm	7.66 mm	4.66 mm	57.39 mm	8.226	65Mn Spring Steel	105.04
SC-150-0096-0248-0354	Variable-Diameter Compression Springs	1.5 mm	9.6 mm	6.6 mm	24.82 mm	10.57	65Mn Spring Steel	67.43
SC-150-0139-0451-0384	Conical Compression Springs	1.5 mm	13.89 mm	10.89 mm	45.06 mm	1.228	65Mn Spring Steel	10.7
ST-150-0141-0213-0658	Single-Leg Torsion Springs	1.5 mm	14.06 mm	11.06 mm	21.3 mm	1.69	65Mn Spring Steel	205.82
SC-150-0178-0571-0393	Conical Compression Springs	1.5 mm	17.78 mm	14.78 mm	57.14 mm	0.441	65Mn Spring Steel	3.82
SC-150-0208-0156-0334	Cylindrical Compression Springs	1.5 mm	20.77 mm	17.77 mm	15.63 mm	1.127	65Mn Spring Steel	2.97
ST-180-0113-0315-0654	Single-Leg Torsion Springs	1.8 mm	11.34 mm	7.74 mm	31.46 mm	3.746	65Mn Spring Steel	180.21
SC-200-0153-0788-0072	Conical Compression Springs	2 mm	15.34 mm	11.34 mm	78.84 mm	2.483	65Mn Spring Steel	32.04
SC-200-0236-0526-0103	Variable-Diameter Compression Springs	2 mm	23.56 mm	19.56 mm	52.58 mm	0.973	65Mn Spring Steel	9.77

Using This Material Data

cold coiling or hot coiling, stress relief, shot peening and presetting may be specified; electroplating high-strength steel requires hydrogen-embrittlement controls

Need to choose between grades? Material selection belongs in the Materials section rather than this data page. Open Carbon & Alloy Spring Steels →

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Spring Requirements

Spring Type Wire / Thickness (mm) Outside Diameter / Envelope (mm) Inside Diameter / Bore (mm) Free Length / Height (mm) Spring Rate / Torque Load / Torque Coils / Turns / Leaves Quantity * Material Finish Drawing PDF, CAD, image or ZIP; maximum 10 MB.

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Notes

Frequently Asked Questions

Can CustomSprings manufacture springs in 65Mn Spring Steel?

The material is included in the CustomSprings material library for RFQ screening. Final feasibility depends on wire or strip form, size, heat treatment, load, environment and quantity.

Does the material page guarantee certified properties?

No. The material values are engineering reference data. Certified properties or test reports must be specified during production quotation.

What if there are no matching reference rows?

Use the RFQ form with your drawing and application data. The material can still be reviewed as a made-to-drawing option.