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

5160-H

ASTM A689, A29
UNS G51600

Hot-rolled special bar quality, fine grained.  Good fatigue life.

204C

1669/1455

(E) 200k
(G) 72.4k

45%

11,89 mm to
31,75 mm

 

Bar Diameter, mm

11,89

15,88

19,84

23,80

28,58

12,70

16,66

20,63

24,59

30,15

13,49

17,45

21,41

25,40

31,75

14,28

18,24

22,23

26,21

 

15,06

19,05

23,01

26,98

 

 

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range
MPa

Modulus of Elasticity, MPa

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes,
mm

51B60-H
ASTM A689, A29
UNS 51601

Hot-rolled special bar quality, fine grained.  Good fatigue life.

204C

1669/1455

(E) 207k
G) 75.8k

45%

31,75 mm to
49,20 mm

 

Bar Diameter, mm

31,75

36,50

41,28

46,03

49,20

33,33

38,10

42,85

46,81

 

34,93

39,68

44,45

47,63

 

 

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range,
MPa

Modulus of Elasticity,
MPa

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes,
mm

4161-H

ASTM A689, A29
UNS 41610

Hot-rolled special bar quality, fine grained.  Good fatigue life.

204C

1669/1445

(E) 207k

(G) 75.8k

45%

50,80 mm
to
73,03 mm

 

Bar Diameter, mm

50,80

60,33

65,08

69,85

53,98

61,90

66,68

71,43

57,15

63,50

68,25

73,03

 

COMMENTS FOR ALL ALLOYS:

Material is produced in the As Rolled" condition. Springs are manufactured via the Hot Wound
procedure, quenched and tempered.  Each spring is checked for Rockwell Hardness to insure
the proper temper is achieved.  Temper hardness should range between HRC 41 & HRC 49. 
If hardness exceeds HRC 49, brittle properties could be produced, increasing failure possibilities.
Bar lengths in general range from 12,2 m 13,7 m.

HRC  41  =  1289 MPa tensile                                            HRC  49  =  1744 MPa  tensile
Note: Virtually all Hot Rolled Alloy Bar stocked by Suhm is turned and polished.

 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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