The 4d electron layer lacks two electrons and can form unstable chemical bonds with hydrogen (the reaction between palladium and hydrogen is reversible). Under the action of palladium, hydrogen is ionized into protons with a radius of 1.5 × 1015m, while the crystal of palladium

The lattice constant is 3.88 × 10-10m (at 20 ℃), so it can be passed through a 15crmo alloy tube. Under the action of palladium, protons combine with electrons and re form hydrogen molecules from another part of the 15crmo alloy tube

Escaping sideways. On the surface of 15crmog alloy tube, undissociated gases cannot pass through, so high-purity hydrogen can be obtained using 15crmo alloy tube. [2] Although palladium has unique permeability to hydrogen, pure palladium

Poor mechanical properties, prone to oxidation at high temperatures, low recrystallization temperature, and easy deformation and embrittlement of 15CrMo alloy tubes, therefore pure palladium cannot be used as a permeable membrane. Adding appropriate amounts of IB and VIII group elements to palladium to produce palladium alloy can

Improving the mechanical properties of palladium 11. Seamless steel pipe for automotive half shaft sleeves (GB3088-82) is a high-quality carbon structural steel and alloy structural steel hot-rolled seamless steel pipe made of palladium for manufacturing automotive half shaft sleeves and drive axle housing shaft sleeves

In the alloy, silver accounts for about 20-30%, and the content of other components (such as gold) is less than 5%

Alloy tubes: made of various materials such as 12Gr1MoVG 15CrMoG P22 (10GrMo910) P11 T91 P91 WB36 12Cr2MoWVTiB alloy tubes.

815×30-70

245×9-10-12-14-16-18

108×5-6-8-10-12-14

630×12-16-20-25-30-50

219×28-30-35-40

102×16-18-20-22-25

530×12-14-16-18-30-40

219×14-16-18-20-22-25

102×4.5-6-8-10-12-14

508×12-20-30-40-55

219×6-7-8-9-10-12-14

95×6-8-10-12-14-16

480×12-14-20-25-50

203×18-20-22-25-35

89×4.5-6-7-8-10-14-16

457×12-16-18-20-45

203×7-8-10-12-14-16

83×4.5-6-8-10-12-14

450×10-12-16-20-35-50

194×18-20-22-25-30

76×4-6-7-8-10-12-16-20

426×20-22-28-30-32

194×7-8-9-10-12-14-16

73×4-6-8-10-12-16

426×12-14-16

180×18-22-25-28-30

68×4-6-8-10-12-14

406×22-25-28-30-32-35-40-45

180×7-8-10-12-14-16

63.5×4-6-8-9-10-12

406×10-12-14-16-18-20

168×18-20-22-25-30

60×3.5-4-5-6-7-8-9-10

402×38-40-45-50

168×5-6-8-10-12-14-16

57×3.5-4-6-7-8-10

402×22-25-28-30-34

159×16-18-22-25-30

54×3.5-4-5-6-8-10-12

402×10-12-14-16-18-20

159×5-6-8-10-12-14

51×3.5-4-5-6-8-10

377×32-35-38-40-45

152×16-18-20-22-28

48×3.5-4-5-6-8-10-12

377×20-22-25-28-30

152×5-6-8-10-12-14

45×3.5-4-5-6-7-8-10

377×10-12-14-16-18

146×18-20-22-25-30

42×3.5-4-5-6-7-8-10

351×32-35-40-45

146×6-8-10-12-14-16

38×3.5-4-5-6

351×20-22-25-28-30

140×16-18-20-22-25

34×3-3.5-4-5-6

351×10-12-14-16-18

140×5-6-7-8-10-12-14

32×3-3.5-4-5-6

325×32-35-40-45

133×16-18-20-22-25

30×3-3.5-4-6

325×20-22-25-28-30-32

133×5-6-7-8-10-12-14

28×2.5-3-4-4.5-6

325×9-10-12-14-16-18-20

127×18-20-22-25-30

25×2.5-3-3.5-4-5

299×22-25-28-30-35

127×6-7-8-10-12-14-16

22×2-2.5-3-4

299×10-12-14-16-18-20

121×18-20-22-25-30

20×2-2.5-3-4.5

273×32-35-40

121×6-8-10-12-14-16

18×2-2.5-3