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

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.

121C

2227/862 (class I)

(E) 206,8k

(G) 79,3k

45%

0,81 to 15,88

 

 SIZE CHART

Wire Diameter, mm

0,81

1,70

2,51 3,43 4,57

6,35

7,77

11,89

0,81

1,83

.2,54

3,76

4,75 6,65

7,92

12,70

1,02

2,03

2,67

3,96

4,88

6,68 8,41

13,49

1,04

2,18

2,87

4,11

5,26

7,14

8,71

14,27

1,19

2,21

3,05

4,32

5,72

7,19

9,19

15,88

1,30

2,31

3,18

4,37 5,97 7,49 10,31  
1,47 2,36 3,25 4,50 6,17 7,67 11,10  

 

 TENSILE STRENGTH CHART

Diameter, mm

Tensile Strength, MPa
Diameter, mm

Tensile Strength, MPa

Class I Class II Class I Class II
min    max min    max min   max min   max
0,51 2020  2227 2234  2227
3,43 1482  1655 1662  1655
0,58 1993  2199
2206  2199
3,76 1448  1620 1627  1620
0,66 1972  2179
2186  2179
4,11 1413  1586 1593  1586
0,74 1951  2158
2165  2158
4,50 1379  1551 1558  1551
0,81 1931  2137

2144  2137

4,88 1344  1517 1524  1517
0,89 1889  2096

2103  2096

5,26 1310  1482 1489  1482
1,04 1834  2041
2048  2041 5,72 1296  1469 1475  1469
1,22 1786  1993
1999  1993
6,20 1289  1469 1469  1462
1,37 1744  1951
1958  1951
6,35 1276  1448 1455  1448
1,57 1703  1910
1917  1910
7,92 1262  1434 1441  1434
1,83 1662  1868
1875  1868 9,53 1241  1413 1420  1413
2,03 1620  1827
1834  1827 11,13 1207  1379 1386  1379
2,34 1586  1793
1800  1793 12,70 1172  1344 1351  1344
2,69 1551  1758
1765  1758 14,27 1138  1310

1317  1310

3,05 1517  1724
1731  1724 15,88 1138  1310 1317  1310

 Tensile strength values for intermediate diameters may be interpolated.

 

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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