MP35N Spring Tempered Wire

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General Information

Material

Material Properties

Maximum Working Temp.

Ultimate Tensile Range (ksi min)

Modulus of Elasticity

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes (inches)

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.

600°F

330/230

(E)34
(G)11.74

45%

.005" to .750"

Wire Sizes (Diameter in Inches)

.005

.007

.008

.009

.010

.012

.014

.015

.017

.018

.021

.022

.024

.025

.031

.032

.035

.041

.042

.044

.045

.048

.050

.054

.058

.062

.072

.080

.093

.100

.105

.114

.120

.125

.135

.142

.148

.156

.162

.172

.177

.187

.192

.207

.218

.225

.243

.250

.283

.312

.343

.375

.406

.437

.468

.500

.562

.625

.750

Suhm Spring Works Wire Specification for MP35N (SS-MP35N)

Suhm Spring Specification

Heat Treat

Notes

SS-MP35N

1200°F / 4 Hours Minimum

Must meet and be certified to AMS-5844A Chemicals Only. Physical Properties are to meet SS-MP35N. Solution Heat Treat and Original Mill Required NACE MR-01-75-94. (55.0 HRC Max)

Physical Properties for Drawn and Aged MP35N (SS-MP35N)

Diameter
inches (mm)

Minimum Tensile Strength
psi (MPa)

Minimum Yield Strength
psi (MPa)

Reduction of Area
Minimum %

Elongation
Minimum %

Up to 0.005 (0.127)

300,000 (2070)

280,000 (1930)

20%

1%

Over 0.005 (0.127) to 0.100 (2.54)

290,000 (2000)

280,000 (1930)

20%

4%

Over 0.100 (2.54) to 0.170 (4.32)

280,000 (1930)

270,000 (1860)

20%

4%

Over 0.170 (4.32) to 0.250 (6.35)

260,000 (1790)

240,000 (1655)

20%

5%

Over 0.250 (6.35) to 0.437 (11.10)

240,000 (1655)

230,000 (1585)

20%

6%

Over 0.437 (11.10)

230,000 (1585)

220,000 (1550)

20%

8%



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.