Welded Bellows

Materials

  • ► Welded Metal Bellows는 성형 Bellows에 비해 다양한 종류의 소재로 제작 가능, 운전 조건에 가장 적합한 제품을 만들 수 있다는 장점이 있습니다. 스페이스솔루션은 아래와 같이 다양한 소재를 이용하여, 고객의 요구조건에 최적화된 제품을 공급할 수 있습니다.

Specification

Availlable raw materials-A
Material 304 316L 321 347
Treatment Annealed Annealed Annealed Annealed

Max. Tensile Strength

(psi X 103)

81 81 90 95

Max. Tensile Strength 2% deduction

(psi X 103)

39 42 35 40
Elongation in 2 inch(%) 55 55 55 50
Hardness 79R 79R 80R 85R

Module elasticity

(psi X 10)

28 29 28 28

Density

(lb/in2)

0.29 0.29 0.29 0.29

Thermal expansion coefficient 68-212℉

(in/in℉ X 10)

9.6 8.9 9.3 9.3

Thermal conduction 212℉

(Btu/hr-ft℉)

9.4 9.4 9.3 9.3

Magnetic permeability 200H

(annealed)

1.02 max. 10.2 max. 10.2 max. 10.2 max.
Availlable raw materials-B
Material Alloy 20 AM350 AM350 HC-276
Treatment Annealed Annealed SCT 850℉ Annealed

Max. Tensile Strength

(psi X 103)

93 145 206 115

Max. Tensile Strength 2% deduction

(psi X 103)

46 60 173 55
Elongation in 2 inch(%) 38 40 12.5 60
Hardness 90R 20R 45R 90R

Module elasticity

(psi X 10)

28 29 29.4 29.8

Density

(lb/in2)

0.29 0.286 0.282 0.321

Thermal expansion coefficient 68-212℉

(in/in℉ X 10)

8.2 8.5 6.3 6.8

Thermal conduction 212℉

(Btu/hr-ft℉)

7.6 8.2 8.9 6.4

Magnetic permeability 200H

(annealed)

1.002 12 max. 123 max. 1.0002
Availlable raw materials-C
Material Haynes 242 Haynes 242 Inconel 625 Inconel 718
Treatment Annealed Aged Annealed Annealed

Max. Tensile Strength

(psi X 103)

128 196 120 117

Max. Tensile Strength 2% deduction

(psi X 103)

65 135 60 44
Elongation in 2 inch(%) 47 32 55 -
Hardness - - 88R -

Module elasticity

(psi X 10)

33.2 33.2 29.8 29

Density

(lb/in2)

0.327 0.327 0.305 0.296

Thermal expansion coefficient 68-212℉

(in/in℉ X 10)

6 6 7.1 -

Thermal conduction 212℉

(Btu/hr-ft℉)

7 7 6.2 6.5

Magnetic permeability 200H

(annealed)

- - 1.0006 1.0013
Availlable raw materials-D
Material Inconel 718 Inconel X-750 Monel 400 Titanium CP2
Treatment Aged Aged Annealed Annealed

Max. Tensile Strength

(psi X 103)

180 177 70 50

Max. Tensile Strength 2% deduction

(psi X 103)

150 123 28 40
Elongation in 2 inch(%) 12 27 55 -
Hardness 26R - 68R -

Module elasticity

(psi X 10)

29 31 26 -

Density

(lb/in2)

0.297 0.298 0.316 0.162

Thermal expansion coefficient 68-212℉

(in/in℉ X 10)

6.8 7 7.7 -

Thermal conduction 212℉

(Btu/hr-ft℉)

6.6 6.9 13.9 -

Magnetic permeability 200H

(annealed)

1.0011 1.002 - 1.00005

Technical Information