Suhm Spring Works - Materials Properties

 

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range,
 ksi

Modulus of Elasticity, psi 106

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes, inches

5160-H
.ASTM A689, A29
UNS G51600

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

400F

242/211

(E) 29
(G) 10.5

45%

.468" to 1.25"

 

Bar Diameter, in

.468

.625

.781

.937

1.125

.500

.656

.812

.968

1.187

.531

.687

.843

1.000

1.250

.562

.718

.875

1.032

 

.593

.750

.906

1.062

 

 

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range,
 ksi

Modulus of Elasticity, psi 106

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes, inches

51B60-H
ASTM A689, A29
UNS 51601

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

400F

242/211

(E) 30
(G) 11.0

45%

1.25" to 1.937"

 

Bar Diameter, in

1.250

1.437

1.625

1.812

1.937

1.312

1.500

1.687

1.843

 

1.375

1.562

1.750

1.875

 

 

Material

Material Properties

Maximum Working Temp.

 Ultimate Tensile Range,
 ksi

Modulus of Elasticity, psi 106

Approx. Design % of Ultimate Tensile (torsional)

Common Sizes, inches

4161-H

ASTM A689, A29
UNS 41610

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

400F

242/211

(E) 30

(G) 11.0

45%

2.00" to 2.875"

 

Bar Diameter, in

2.000

2.375

2.562

2.750

2.125

2.437

2.625

2.812

2.250

2.500

2.687

2.875

 

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 and HRC 49.

If the hardness exceeds HRC 49, brittle properties could be produced, increasing failure possibilities.

Bar lengths in general range from 40 to 45.

       HRC 41  =  187,000  psi tensile                                            HRC 49  =  253,000  psi 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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