Suhm Spring Works - Materials Properties

                                                                                               

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range,
MPa

Modulus of Elasticity,
MPa

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes,
mm

Chrome Vanadium

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.

218°C

2241/1310

(E) 206,8k
(G) 72,3k

45%

0,06 to 11,89

 

 SIZE CHART

Wire Diameter, mm
1,09 1,52 2,31 2,59 3,18 5,26 7,92 10,31
1,17 1,57 2,34 2,67 3,43 5,72 8,41 11,10
1,37 1,83 2,41 2,87 4,11 6,65 8,71

11,89
1,50 2,03 2,51 3,05 4,75 7,19 9,53  

Valve Quality

Wire Diameter, mm

1,50

 2,41

3,43

 4,11

5,26

 7,19 8,71  

2,16

2,77

3,61

4,50

6,17

7,77

    

2,29

3,18

 3,76

4,88

6,65

8,41

    

 

 TENSILE STRENGTH CHART

Diameter, mm

Tensile Strength, MPaA

 Reduction of Area, minimum, %   Diameter, mm
 Tensile Strength, MPaA Reduction of Area, minimum, %

minimum

maximum

 minimum maximum
0,51 2068 2241 C 4,11 1551 1689 40
.0,81 1999
 2172 C 4,88 1517 1655 40
1,04 1931
 2103 C 6,20 1448 1586 40
1,37 1862
 2034 C 7,19 1413 1551 40
1,57 1827
 1999 C 7,92 1400 1538 40
2,03 1758
 1896 C 9,53 1379 1517 40
2,67 1689
 1827 45 11,13 1344 1482 40
3,43 1620
 1758 45 12,70 1310 1448 40

A Tensile strength values for intermediate diameters may be interpolated.

C The reduction of area test is not applicable to wire diameters under 2,34 mm.

Note: Valve quality material has improved surface quality.

 

These data are provided as a reference guide only and are not intended for design purposes.  Strength values and sizes are subject to change.  Please check with a Suhm Spring representative for confirmation.

 

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