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Long products
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by usage | Magival® |
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Marinox® has a range of austenitic stainless steel
hardened by precipitation and duplex, which are used for the production
of tail shafts in the shipping yards.
By using this kind of stainless steel, the designer engineers can reduce
the diameter of the tails, so that smaller mountings can be employed.
Specifications and approximate chemical analysis
of the marine stainless steel:
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TYPE
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AISI
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ASTM
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W.-Nr
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C %
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Cr %
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Ni %
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Others %
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Marinox 16
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316L
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A 276, S31600
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1.4401
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0,03 max
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16,0:18,0
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11,0:14,0
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Mo 2,0:2,5
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Marinox 17
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630
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A 564, S17400
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1.4542
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0,07max
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15,0:17,5
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3,0:5,0
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Cu 3,0:5,0; Nb+Ta 0,15:0,45
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Marinox 19
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304N
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A 276, 30451
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1.4311
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0,03 max
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18,0:20,0
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8,0+10,5
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N 0,10:0,16
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Marinox 25
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2205
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A 276, S31803
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1.4462
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0,03 max
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21,0:23,0
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4,5:6,5
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Mo 2,5:3,5; N 0,08:0,20
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Marinox 22
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XM-19
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A 276, S20910
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0,06 max
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20,5:23,5
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11,5:13,5
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Mn 4,0:6,0; Mo 1,5:3,0
N 0,20:0,40; V 0,10:0,30
Nb+Ta 0,10:0,30
|
| Diameter |
min.:
25.mm |
max.:
200 mm |
| Lenght |
min.:
2,5 m |
max.:
9 m |
| Tolerance |
on diameter
H8 |
on fixed lenghts: -0/+50
mm |
| Straightness |
bars <7,62
m: 0,127 |
bars >7,62: 0,155 |
| Roughness(Ra)
|
0,8 m max
|
|
| Packing |
in woodden boxes |
|
Mechanical and physical characteristics of Marinox®
stainless steel:
|
Characteristics
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Marinox 16
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Marinox 17
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Marinox 19
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Marinox 25
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Marinox 22
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Resistance to tensile
strength R (N/mmq)
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>= 515
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>= 930
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>=793 per dia <50mm
>=690 per dia 50+75 mm
>=655 per dia >75 mm
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>=620
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>=930 per dia <50mm
>=790 per dia 50+75 mm
>=690 per dia >75 mm
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Yield to tensile strength
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>= 205
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>= 725
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>=586 per dia <50mm
>=379 per dia 50+75 mm
>=345 per dia >75 mm
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>=450
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>=725 per dia <50mm
>=515 per dia 50+75 mm
>=380 per dia >75 mm
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Yield to torsional strength
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>= 110
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>= 483
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>=393 per dia <50mm
>=276 per dia 50+75 mm
>=228 per dia >75 mm
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>=350
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>=480 per dia <50mm
>=345 per dia 50+75 mm
>=250 per dia >75 mm
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Elongation (%)
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>= 30
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>= 16
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>= 35
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>=25
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>=25 per dia <50mm
>=30 per dia > 60 mm
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Necking, reduction
of cross section (%)
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>= 50
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>= 50
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>=55
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>=60
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>=55
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Hardness Brinell
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183
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269:311
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300
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<=290 |
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<=290
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Impact resistance (J)
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100 (tipico)
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50 (tipico)
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100 (tipico)
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110 (tipico)
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100 (tipico)
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Modulus of elasticity
coefficient E (N/mmq)
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195000 (tipico)
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200600 (tipico)
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193000
(tipico)
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189000 (tipico)
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193000
(tipico)
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Modulus of rigidity
coefficient G (N/mmq)
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80000
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77700
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76150
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75000
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71700
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Density
(g/cm a 20°C)
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8,0
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7,75
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7,93
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7,89
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7,88
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Heat conductivity
(W/m K a 20°C)
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16,3
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18,4
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16,3
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19
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16,3
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Electrical resistivity
( K a 20°C)
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74
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80
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72
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85
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82
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Specific heat (J/Kg
C)
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500
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460
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500
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400
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500
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Marinox® grinding bars
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Marinox® - tail shafts in the shipping yards
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Marinox® - shafts |
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