2022-07-14 11:35
(supersedes all previous editions)
Sanprint™ XP is a hardened and tempered carbon steel used for printing doctor blade applications. The grade is a special martensitic alloy steel, particularly suitable for abrasive inks and is characterized by:
C | Si | Mn | Cr | Mo | W |
---|---|---|---|---|---|
0.5 | 0.8 | 0.3 | 4.0 | 1.5 | 2.0 |
Sanprint™ XP is supplied in coils with inner diameter 350 mm (13.8 in.). Approximately 15 meters of strip material is unshaved on the innermost rings of the coil.
Thickness, mm (in.) | Width, mm (in.) | ||
---|---|---|---|
min. | max. | min. | max. |
0.152 (0.006) | 0.305 (0.012) | 8.00 (0.315) | 70.0 (2.76) |
Other sizes can be offered on request.
Surfaces offered are white or bronze polished.
Surface roughness is measured transversal to the rolling direction with a cut off length of 0.25 mm (0.0098 in.).
Thickness, mm (in.) | Ra µm (µin.) | Rmax µm (µin.) |
---|---|---|
0.152 (0.006) - 0.305 (0.012) | (Y8) 0.05 - 0.125 (2 - 5) | 1.5 (60) |
Maximum allowed depth of surface defects (excluding burrs):
Thickness, mm (in.) | Scratches, µm (µin.) | Single minor surface defects, µm (µin.) |
---|---|---|
0.152 (0.006) - 0.305 (0.012) | ≤ 5 (200) | ≤ 5 (200) |
As standard, strip is supplied with round, shaved edges with no sharp corners and with no friction-induced martensite. Edge surface defects such as pits or burrs, ≤ 5 µm (200 µin.).
The edge radius should be at least equal to half of the strip thickness.
Width > 12.1 mm, R spec = max 1.4 mm deviation on a 3000 mm length.
Widths < 12 mm, R spec = max 2.5 mm deviation on a 3000 mm length.
Cross bow hardened and tempered strip (H/T) in all tensile strengths (P1 is the Alleima standard).
Tolerance class | Cross bow % of width |
---|---|
H/T condition | |
P0 | No requirements |
P1 | max. 0.4 |
P2 | max. 0.3 |
P3 | max. 0.2 |
Other tolerances may be possible on request.
Tolerance | Limit Ra µm (µin.) | Mean Ra µm (µin.) |
---|---|---|
Y8 | 0.05-0.125 (2-5) | 0.08 (3) |
Thickness | Width | Width tolerance +/- mm | ||
---|---|---|---|---|
mm | mm | B1 | B2 | B3 |
0.152 - 0.25 | 8 - <20 | 0.07 | 0.05 | 0.03 |
20 - <50 | 0.10 | 0.07 | 0.05 | |
50 - <70 | 0.15 | 0.11 | 0.07 | |
0.251 - 0.305 | 8 - <20 | 0.10 | 0.07 | 0.05 |
20 - <50 | 0.15 | 0.11 | 0.07 | |
50 - <70 | 0.20 | 0.15 | 0.10 |
Thickness | Width | Thickness tolerance +/- mm | ||
---|---|---|---|---|
mm | mm | T1 | T2 | T3 |
0.152 - <0.16 | 8 - 70 | 0.009 | 0.006 | 0.005 |
0.16 - <0.2 | 8 - 70 | 0.01 | 0.007 | 0.005 |
0.2 - <0.25 | 8 - 70 | 0.011 | 0.008 | 0.006 |
0.25 - <0.305 | 8 - 70 | 0.013 | 0.009 | 0.007 |
Thickness mm (in.) | Tensile strength Rm | Hardness* | |
---|---|---|---|
MPa | ksi | Vickers, HV | |
0.152 (0.006) | 2250 +/- 100 | 326 +/- 14.5 | 650 +/-25 |
0.203 (0.008) | 2250 +/- 100 | 326 +/- 14.5 | 650 +/-25 |
0.254 (0.010) | 2250 +/- 100 | 326 +/- 14.5 | 650 +/-25 |
0.305 (0.012) | 2250 +/- 100 | 326 +/- 14.5 | 650 +/-25 |
* Hardness (HV) values are given for information only.
The microstructure is unform and consists of tempered martensite with an extra high amount of small carbides.
Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Alleima materials.