Material Information
Suhm purchases only the highest quality material, because the superior caliber of each spring produced depends on it. Our company has over 37,000 square feet of popular and exotic raw materials in stock to ensure prompt delivery of your order.

Suhm has a great deal of bar, wire, and flat material on-hand.
Many sizes of almost every material listed on the following material properties chart are held in our inventory. Contact Suhm to confirm availability.
Material Properties Chart
The following chart is a general spring design reference. Because this chart is only a simple reference, and every spring application has its own particular parameters, we suggest you contact a Suhm sales staff member for more information on spring design application and customization.
Popular types of material include Oil Tempered, Chrome Vanadium, Chrome Silicon, 5160-H, 302/304 SS, Inconel X750 Wire, MP35N, Elgiloy, and Titanium Beta-C.
Additional size and material specifications, including common stock sizes and tensile strength charts, are available by clicking on the (details) link in the “Material Properties” column.
A downloadable copy of this entire chart (PDF, 25k) is also available.
We also offer access to complete Suhm Spring Materials: Sizes and Strength Values Book (PDF, 219k).
Material Properties Chart |
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| Material | Material Properties | Maximum Working Temp. | Ultimate Tensile Range (ksi min) | Modulus of Elasticity, x 106 | Approx. Design % of Ultimate Tensile (torsional) | Common Sizes (inches) | |||
Alloy Steel |
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| Music Wire ASTM A228 UNS K08500 & G10860 |
Cold drawn. Constant tensile strength. High-quality and good for high cycle spring applications. (details) | 250°F | 449/230 | (E)30 (G)11.5 |
45% | .012″ to .250″ | |||
High Carbon Steel Wire/Bar |
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| Oil Tempered Wire, Class I ASTM A229 UNS K07001 & G10650 |
Cold drawn. All purpose spring material. Heat treated before fabrication. Susceptible to hydrogen embrittlement when plated. (details) | 250°F | 323/125 (class I) | (E)30 (G)11.5 |
45% | .032″ to .625″ | |||
| Chrome Vanadium Wire ASTM A-231 Valve Quality: ASTM A-232 AMS 6450 |
Cold drawn. Good for shock loads and medium elevated temperature applications. Susceptible to hydrogen embrittlement when plated. ( details) | 425°F | 325/190 | (E)30 (G)11.5 |
45% | .043″ to .500″ | |||
| Chrome Silicon Wire ASTM A401 UNS G92540 |
Cold drawn. Good for shock loads and medium elevated temperature applications. Susceptible to hydrogen embrittlement when plated. (details) | 475°F | 300/226 | (E)30 (G)11.5 |
45% | .024″ to .438″ | |||
Hot Rolled Alloy Bar |
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| 5160-H .468″ to 1.25″ ASTM A689, A29 UNS G516000 |
Hot-rolled special bar quality, fine grained. Good fatigue life. (details) | 400°F | 242/211 | (E)29 (G)10.5 |
45% | .468″ to 1.250″ | |||
| 51B60-H 1.25″ to 1.937″ ASTM A689, A29 UNS 51601 |
Hot-rolled special bar quality, fine grained. Good fatigue life. (details) | 400°F | 242/211 | (E)30 (G)11.0 |
45% | 1.250″ to 1.937″ | |||
| 4161-H 2.00″ to 2.875″ ASTM A689, A29 UNS 41610 |
Hot-rolled special bar quality, fine grained. Good fatigue life. (details) | 400°F | 242/211 | (E)30 (G)11.0 |
45% | 2.00″ to 2.875″ | |||
Stainless Steel |
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| AISI 302/304 Stainless Steel Wire ASTM A313 AMS 5688 UNS S30200 |
Cold drawn. Low cost. Good for general purpose corrosion and elevated temperature applications. Has some magnetism in a spring temper. (details) | 500°F | 325/130 | (E)28 (G)9.8 |
40% | .015″ to .500″ | |||
| AISI 316 Stainless Steel Wire ASTM A313 UNS S31600 |
Cold drawn. Better corrosion resistance than 302/304. Good for elevated temperatures. No magnetism. (details) | 550°F | 245/110 | (E)28 (G)9.8 |
40% | .017″ to .500″ | |||
| T-316 Stainless Steel Bar ASTM A276 Cond B UNS S31600 |
Cold drawn. Better corrosion resistance than 302/304. Good for elevated temperatures. No magnetism. (details) | 550°F | 245/110 | (E)28 (G)9.8 |
40% | .562″ to 1.750″ | |||
| 17-7PH Stainless Steel Wire ASTM A276 Cond B UNS S31600 |
Cold drawn. Better corrosion resistance than 302/304. Good for elevated temperatures. No magnetism. (details) | 550°F | 365/230 | (E)29 (G)11.0 |
45% | .017″ to .562″ | |||
| 17-4PH Bar ASTM A564 UNS S17400 |
Age hardened. High tensile strength. Good for general corrosion resistance. No magnetism. (details) | 550°F | 200 max | (E)29 (G)11.2 |
45% | .562″ to 2.875″ | |||
| Alloy 20 Spring Tempered Wire ASTM B473 UNS N08020 |
Excellent mechanical properties and easily fabricated. Moderate to good corrosion resistance. Used extensively in petrochemical and refining applications. (details) | - | 200/125 | (E)29 (G)10.9 |
45% | .025″ to .362″ | |||
| A-286 Spring Tempered Wire AMS 5734 and others UNS S66286 |
Age hardened. Good corrosion resistance. Good for use in elevated temperature applications. No magnetism. (details) | 900°F | 200/160 | (E)29.1 (G)10.4 |
45% | .040″ to .295″ | |||
Copper Base Alloy |
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| Phosphor Bronze Wire (Grade A) ASTM B159 H08 UNS C51000 |
Cold drawn. Good electrical conductivity. Good corrosion resistance. (details) | 200°F | 145/105 | (E)15 (G)6.25 |
40% | .010″ to .468″ | |||
| Beryllium Copper Wire ASTM B197 |
Cold drawn. Good electrical conductivity. Good corrosion resistance. (details) | 400°F | 230/150 | (E)18.5 (G)7.2 |
45% | .010″ to .468″ | |||
Nickel Base Alloy Wire/Bar |
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| Inconel X-750 Spring Tempered Wire AMS 5698 AMS 5699 UNS N07750 |
Cold drawn, age hardened. Good corrosion resistance. Good for use in elevated temperature applications. Good for use in Sour-Gas applications. (details) | 700°F | 230/180 | (E)29 (G)11.2 |
45% | .005″ to .750″ | |||
| Inconel X-750 Bar ASTM B637 UNS N07500 |
Cold drawn. Good corrosion resistance. Good for use in elevated temperature applications. Good for use in Sour-Gas applications. (details) | 700°F | 170 | (E)29 (G)11.2 |
45% | .750″ to 2.500″ | |||
| Inconel 600 Wire QQ-W-390 UNS N06600 |
Cold drawn. Good corrosion resistance. Good for use in elevated temperature applications. (details) | 700°F | 205/120 | (E)29 (G)11.0 |
45% | .005″ to .750″ | |||
| Inconel 625 Spring Tempered Wire ASTM B446 UNS N06625 |
Cold drawn. Good corrosion resistance. Good for use in elevated temperature applications. (details) | 700°F | 205/120 | (E)29 (G)11.0 |
45% | .012″ to .175″ | |||
| Inconel 718 Spring Tempered Wire ASTM B637 UNS N07718 |
Cold drawn. Good corrosion resistance. Good for use in elevated temperature applications. (details) | 1200°F | 250/210 | (E)29 (G)11.2 |
45% | .012″ to .275″ | |||
| Inconel 718 Bar ASTM B637 UNS N07718 |
Age hardened. Good corrosion resistance. Good for use in elevated temperature applications. No magnetism. (details) | 1200°F | 250/210 | (E)29 (G)11.2 |
45% | .234″ to 1.500″ | |||
| MP35N Spring Tempered Wire AMS 5844 UNS R30035 |
Cold drawn, age hardened. High strength. High modulus value and corrosion resistance. Great choice for severe spring applications. Good for applications involving the presence of Hydrogen Sulfide. (details) | 600°F | 330/230 | (E)34 (G)11.74 |
45% | .005″ to .750″ | |||
| Elgiloy Spring Tempered Wire AMS 5834 UNS R30003 |
Cold drawn. Very high fatigue strength and long life. (details) | 600°F | 350/220 | (E)29.5 (G)11.5 |
45% | .005″ to .750″ | |||
| Monel 400 Spring Tempered Wire AMS 7233 or 4544, ASTM B164 UNS N04400 |
Cold drawn. Good corrosion resistance. Good for elevated temperature applications. (details) | 450°F | 165/120 | (E)26 (G)9.5 |
40% | .014″ to .500″ | |||
| Monel K-500 Spring Tempered Wire/Bar QQ-N-286 AMS 4676C UNS N05500 |
Cold drawn. Very high corrosion resistance. Good for use in elevated temperature applications. (details) | 500°F | 195/140 | (E)26 (G)9.5 |
40% | .018″ to 2.000″ | |||
| Hastelloy C-276 Wire AMS B574 (Chem. only), AMS J470 UNS N10276 |
Good corrosion resistance to many acids and salts. (details) | - | - | (E)29.8 (G)10.9 |
- | .012″ to .437″ | |||
| Hastelloy B-2 ASTM B335 AMS J470 UNS N10665 |
Good corrosion resistance to many acids and salts. (details) | - | - | (E)28 (G)8.0 |
- | .018″ to .207″ | |||
Titanium |
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| Titanium Beta-C AMS 4957 UNS R58640 |
Age hardened. Good ductility and toughness. Good fabricability, and good resistance to general corrosion. Good for environments containing Ferric Chloride, Sodium Chloride, Carbon Dioxide, and Hydrogen Sulfide. (details) | 600°F | 190/180 | (E)15.4 (G)5.9 |
45% | .005″ to .625″ | |||
| Titanium 6Al-4V AMS 4965 UNS R56400 |
Age hardened. Good ductility and toughness. Good fabricability, and good resistance to general corrosion. (details) | - | 165 | (E)15.0 (G)5.0 |
40% | .020″ to .250″ | |||
Tool Steel |
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| H-12 Tungsten Bar ASTM A681 (Chem. only) UNS T20812 |
Good for high temperature applications. (details) | 700°F | 187 | (E)30.0 (G)11.0 |
45% | .500″ to 2.250″ | |||
This data is provided as a reference guide only and is not intended for design purposes. Strength values and sizes are subject to change. Please check with a Suhm Spring representative for confirmation.


