Alloy surcharges 2025 Oct : Spring steel Strip 1.4310 : 2,10Spring steel strip 1.4310 (increased Mo) : 2,44 Spring steel wire 1.4310 : 2,13Stainless steel strip 1.4301 : 1,88Precision steel strip 1.4301 : 2,26Stainless steel wire 1.4301 : 2,26Precision steel strip 1.4404 : 3,93Stainless steel wire 1.4404 : 3,98
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Stahl-Becker GmbH | Ottostr. 9-11 | 63150 Heusenstamm | Germany
Phone: +49 6104 4059-60
Fax: +49 6104 4059-70
E-mail: info@stahlbecker.com
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Alloy Surcharges

Month Spring steel Strip 1.4310 Spring steel strip 1.4310 (increased Mo) Spring steel wire 1.4310 Stainless steel strip 1.4301 Precision steel strip 1.4301 Stainless steel wire 1.4301 Precision steel strip 1.4404 Stainless steel wire 1.4404
2025
Oct 2,10 2,44 2,13 1,88 2,26 2,26 3,93 3,98
Sept 2,10 2,42 2,15 1,88 2,26 2,27 3,84 3,91
Aug 2,07 2,37 2,12 1,83 2,20 2,24 3,71 3,80
July 2,12 2,42 2,16 1,87 2,24 2,29 3,75 3,86
june 2,15 2,44 2,24 1,90 2,28 2,38 3,75 3,89
May 2,25 2,55 2,36 1,98 2,38 2,50 3,92 4,08
Apr 2,37 2,69 2,56 2,09 2,51 2,70 4,14 4,39
March 2,38 2,71 2,61 2,10 2,52 2,76 4,18 4,47
Feb 2,40 2,73 2,60 2,12 2,54 2,75 4,23 4,48
Jan 2,40 2,72 2,60 2,12 2,54 2,76 4,21 4,48
2024
Dec 2,34 2,66 2,49 2,06 2,48 2,64 4,14 4,36
Nov 2,37 2,68 2,52 2,10 2,51 2,68 4,16 4,38
Oct 2,25 2,56 2,44 1,99 2,39 2,59 3,99 4,25
Sept 2,28 2,60 2,50 2,02 2,42 2,66 4,04 4,33
Aug 2,40 2,74 2,62 2,12 2,55 2,79 4,30 4,58
July 2,58 2,92 2,78 2,29 2,75 2,97 4,58 4,83
june 2,60 2,91 2,80 2,31 2,78 3,00 4,51 4,77
May 2,44 2,73 2,61 2,16 2,59 2,78 4,20 4,42
Apr 2,39 2,69 2,56 2,12 2,54 2,73 4,16 4,38
March 2,29 2,58 2,44 2,02 2,42 2,59 3,96 4,17
Feb 2,21 2,51 2,42 1,95 2,34 2,57 3,89 4,17
Jan 2,25 2,50 2,51 1,99 2,38 2,67 3,79 4,13
2023
Dec 2,32 2,62 2,66 2,06 2,47 2,84 4,05 4,46
Nov 2,42 2,76 2,79 2,14 2,57 2,99 4,33 4,82
Oct 2,48 2,83 2,90 2,20 2,64 3,11 4,51 5,07
Sept 2,46 2,81 2,85 2,19 2,63 3,07 4,47 4,99
Aug 2,49 2,81 2,88 2,21 2,65 3,10 4,39 4,91
July 2,68 3,00 3.08 2,38 2,86 3.32 4,66 5.18
june 2,82 3,13 3,26 2,51 3,01 3,51 4,86 5,40
May 2,84 3,21 3,33 2,53 3,03 3,58 5,05 5,60
Apr 2,96 3,58 3,43 2,65 3,17 3,70 6,05 6,63
March 3,24 3,87 3,75 2,90 3,48 4,05 6,57 7,25
Feb 3,33 3,77 3,84 2,99 3,59 4,16 6,10 6,74
Jan 3,25 3,58 3,79 2,92 3,50 4,11 5,61 6,27
2022
Dec 3,01 3,30 3,58 2,69 3,22 3,87 5,08 5,80
Nov 3,03 3,30 3,56 2,68 3,21 3,83 5,02 5,70
Oct 3,01 3,24 3,58 2,65 3,17 3,83 4,80 5,50
Sept 2,95 3,14 3,51 2,58 3,10 3,77 4,61 5,28
Aug 3,07 3,30 3,58 2,73 3,28 3,84 4,92 5,49
July 3,53 3,74 4,18 3,14 3,77 4,49 5,53 6,28
june 3,62 3,86 4,56 3,22 3,85 4,91 5,67 6,85
May 4,30 4,52 4,78 3,84 4,61 5,14 6,67 7,14
Apr 3,64 3,86 4,15 3,25 3,90 4,45 5,73 6,27
March 2,99 3,22 3,42 2,66 3,19 3,65 4,79 5,25
Feb 2,80 3,02 3,20 2,48 2,97 3,40 4,51 4,96
Jan 2,74 2,97 3,12 2,42 2,91 3,30 4,40 4,81
2021
Dec 2,62 2,85 3,05 2,31 2,77 3,22 4,26 4,72
Nov 2,47 2,70 2,85 2,19 2,62 3,02 4,06 4,47
Oct 2,47 2,71 2,71 2,19 2,63 2,88 4,11 4,37
Sept 2,44 2,60 2,64 2,17 2,60 2,81 4,02 4,24
Aug 2,28 2,52 2,54 2,02 2,43 2,70 3,83 4,10
July 2,14 2,33 2,35 1,90 2,28 2,49 3,48 3,73
june 2,09 2,21 2,26 1,85 2,23 2,41 3,19 3,38
May 2,02 2,12 2,10 1,79 2,15 2,23 3,05 3,14
Apr 2,08 2,20 2,06 1,85 2,22 2,19 3,18 3,17
March 2,08 2,17 2,09 1,85 2,22 2,23 3,15 3,17
Feb 1,93 2,01 2,01 1,72 2,06 2,15 2,91 3,00
Jan 1,78 1,86 1,85 1,59 1,91 1,98 2,72 2,80
2020
Dec 1,69 1,78 1,76 1,52 1,82 1,88 2,61 2,68
Nov 1,62 1,70 1,68 1,45 1,74 1,80 2,48 2,55
Oct 1,63 1,70 1,69 1,46 1,75 1,81 2,48 2,54
Sept 1,53 1,59 1,59 1,37 1,64 1,70 2,30 2,37
Aug 1,53 1,59 1,56 1,37 1,64 1,67 2,29 2,33
July 1,52 1,60 1,55 1,36 1,63 1,65 2,31 2,35
june 1,53 1,62 1,52 1,36 1,64 1,61 2,36 2,34
May 1,44 1,53 1,41 1,28 1,53 1,49 2,22 2,19
Apr 1,46 1,56 1,46 1,30 1,56 1,55 2,32 2,34
March 1,53 1,66 1,57 1,37 1,64 1,66 2,49 2,53
Feb 1,62 1,72 1,67 1,45 1,74 1,78 2,54 2,59
Jan 1,61 1,70 1,65 1,44 1,72 1,76 2,51 2,55
2019
Dec 1,79 1,87 1,82 1,61 1,93 1,95 2,78 2,81
Nov 1,92 2,04 1,95 1,73 2,08 2,10 3,10 3,14
Oct 1,92 2,05 1,98 1,73 2,07 2,13 3,11 3,19
Sept 1,74 1,87 1,78 1,56 1,87 1,90 2,83 2,88
Aug 1,55 1,69 1,57 1,38 1,66 1,67 2,55 2,57
July 1,54 1,68 1,55 1,36 1,63 1,64 2,51 2,53
june 1,56 1,70 1,59 1,38 1,66 1,68 2,55 2,58
May 1,63 1,78 1,67 1,45 1,74 1,77 2,66 2,71
Apr 1,61 1,75 1,63 1,43 1,72 1,73 2,64 2,66
March 1,52 1,65 1,55 1,35 1,62 1,64 2,46 2,48
Feb 1,39 1,53 1,42 1,23 1,47 1,50 2,28 2,31
Jan 1,45 1,59 1,48 1,28 1,53 1,56 2,37 2,41
2018
Dec 1,55 1,69 1,57 1,37 1,64 1,66 2,51 2,53
Nov 1,60 1,73 1,66 1,41 1,69 1,76 2,57 2,64
Oct 1,63 1,77 1,70 1,44 1,73 1,79 2,62 2,69
Sept 1,72 1,86 1,79 1,52 1,83 1,90 2,74 2,83
Aug 1,79 1,90 1,85 1,58 1,90 1,96 2,77 2,84
July 1,86 1,98 1,93 1,65 1,98 2,05 2,90 2,98
june 1,73 1,86 1,79 1,53 1,83 1,89 2,73 2,80
May 1,62 1,75 1,65 1,43 1,72 1,74 2,58 2,61
Apr 1,59 1,73 1,58 1,41 1,69 1,67 2,57 2,57
March 1,53 1,66 1,54 1,35 1,62 1,63 2,5 2,49
Feb 1,49 1,61 1,54 1,32 1,58 1,62 2,39 2,35
Jan 1,47 1,55 1,52 1,29 1,55 1,59 2,24 2,21
2017
Dec 1,54 1,62 1,59 1,36 1,64 1,67 2,32 2,3
Nov 1,44 1,52 1,41 1,26 1,51 1,48 2,14 2,08
Oct 1,42 1,50 1,37 1,25 1,50 1,45 2,14 2,07
Sept 1,26 1,34 1,26 1,11 1,33 1,32 1,92 1,88
Aug 1,26 1,33 1,25 1,11 1,33 1,32 1,87 1,82
July 1,36 1,44 1,38 1,19 1,43 1,45 2,00 1,97
june 1,42 1,52 1,46 1,24 1,49 1,53 2,14 2,14
May 1,54 1,64 1,59 1,35 1,62 1,67 2,32 2,35
Apr 1,66 1,74 1,70 1,46 1,75 1,79 2,43 2,45
March 1,60 1,67 1,64 1,40 1,69 1,72 2,31 2,32
Feb 1,64 1,70 1,57 1,43 1,72 1,65 2,34 2,23
Jan 1,51 1,58 1,45 1,34 1,61 1,54 2,25 2,15
2016
Dec 1,35 1,41 1,31 1,20 1,44 1,39 2,02 1,95
Nov 1,24 1,31 1,19 1,10 1,32 1,27 1,89 1,80
Oct 1,16 1,22 1,10 1,03 1,23 1,17 1,77 1,71
Sept 1,23 1,29 1,14 1,09 1,31 1,22 1,86 1,78
Aug 1,14 1,20 1,03 1,01 1,22 1,10 1,74 1,62
July 1,02 1,10 0,88 0,90 1,08 0,93 1,60 1,45
june 1,03 1,09 0,95 0,91 1,10 1,01 1,55 1,45
May 0,97 1,00 0,89 0,85 1,02 0,94 1,41 1,31
Apr 0,98 1,01 0,93 0,87 1,04 0,99 1,43 1,37
March 0,94 0,97 0,88 0,83 0,99 0,93 1,36 1,30
Feb 0,99 1,02 0,93 0,87 1,05 0,99 1,43 1,39
Jan 1,05 1,07 1,00 0,93 1,11 1,07 1,48 1,44
2015
Dec 1,13 1,15 1,11 1,00 1,20 1,18 1,60 1,58
Nov 1,12 1,15 1,11 1,00 1,20 1,18 1,62 1,61
Oct 1,11 1,14 1,12 0,99 1,18 1,19 1,61 1,63
Sept 1,22 1,25 1,27 1,08 1,30 1,35 1,78 1,85
Aug 1,31 1,35 1,37 1,17 1,40 1,45 1,93 2,01
July 1,39 1,56 1,47 1,24 1,49 1,57 2,11 2,24
june 1,43 1,49 1,55 1,28 1,53 1,65 2,19 2,36
May 1,42 1,50 1,54 1,27 1,53 1,64 2,22 2,39
Apr 1,47 1,54 1,62 1,32 1,58 1,73 2,28 2,49
March 1,47 1,55 1,61 1,32 1,59 1,73 2,31 2,51
Feb 1,44 1,52 1,56 1,29 1,55 1,67 2,27 2,45
Jan 1,47 1,55 1,64 1,33 1,59 1,75 2,31 2,56
2014
Dec 1,39 1,48 1,54 1,25 1,50 1,65 2,22 2,44
Nov 1,47 1,56 1,63 1,32 1,58 1,75 2,35 2,59
Oct 1,60 1,72 1,78 1,44 1,73 1,91 2,63 2,91
Sept 1,55 1,67 1,73 1,40 1,68 1,58 2,56 2,84
Aug 1,55 1,67 1,74 1,40 1,67 1,86 2,59 2,84
July 1,55 1,69 1,73 1,39 1,67 1,85 2,62 2,90
june 1,51 1,62 1,71 1,36 1,63 1,83 2,50 2,80
May 1,32 1,41 1,50 1,19 1,42 1,60 2,13 2,39
Apr 1,20 1,27 1,38 1,07 1,29 1,47 1,90 2,14
March 1,18 1,25 1,33 1,05 1,26 1,41 1,86 2,07
Feb 1,16 1,24 1,30 1,03 1,24 1,38 1,83 2,03
Jan 1,12 1,20 1,26 1,00 1,20 1,34 1,77 1,98
2013
Dec 1,16 1,24 1,30 1,03 1,24 1,38 1,83 2,04
Nov 1,12 1,20 1,27 1,00 1,20 1,35 1,76 1,98
Oct 1,17 1,25 1,32 1,05 1,26 1,40 1,84 2,05
Sept 1,20 1,27 1,34 1,07 1,28 1,42 1,87 2,07
Aug 1,19 1,27 1,36 1,06 1,27 1,44 1,89 2,14
July 1,27 1,36 1,47 1,14 1,36 1,56 2,04 2,32
june 1,34 1,44 1,54 1,20 1,44 1,63 2,16 2,44
May 1,43 1,52 1,62,1 28 1,54 1,72 2,27 2,54
Apr 1,42 1,52 1,62 1,28 1,53 1,73 2,29 2,57
March 1,47 1,56 1,67 1,32 1,58 1,78 2,36 2,65
Feb 1,45 1,55 1,65 1,30 1,56 1,76 2,36 2,64
Jan 1,64 1,56 1,66 1,31 1,57 1,78 2,36 2,64
2012
Dec 1,39 1,48 1,58 1,25 1,50 1,69
Nov 1,51 1,61 1,76 1,36 1,63 1,88
Oct 1,50 1,62 1,72 1,34 1,61 1,83
Sept 1,48 1,58 1,70 1,32 1,58 1,81
Aug 1,54 1,66 1,78 1,38 1,65 1,90
July 1,58 1,71 1,82 1,41 1,70 1,94
june 1,58 1,71 1,82 1,42 1,70 1,93
May 1,58 1,71 1,78 1,42 1,70 1,90
Apr 1,63 1,77 1,87 1,47 1,76 2,00
March 1,73 1,86 2,00 1,57 1,88 2,14
Feb 1,65 1,78 1,91 1,49 1,79 2,04
Jan 1,50 1,62 1,72 1,34 1,61 1,84
2011
Dec 1,50 1,63 1,73 1,35 1,62 1,85
Nov 1,56 1,69 1,79 1,40 1,68 1,91
Oct 1,68 1,81 1,94 1,51 1,81 2,07
Sept 1,75 1,88 2,04 1,58 1,90 2,18
Aug 1,80 1,93 2,11 1,62 1,95 2,26
July 1,78 1,92 2,07 1,60 1,92 2,21
june 1,93 2,07 2,23 1,74 2,09 2,39
May 2,03 2,19 2,36 1,84 2,21 2,53
Apr 2,14 2,30 2,49 1,94 2,33 2,67
March 2,23 2,40 2,55 2,02 2,41 2,74
Feb 2,12 2,29 2,43 1,92 2,30 2,61
Jan 1,96 2,12 2,28 1,77 2,12 2,44
2010
Dec 1,83 1,99 2,13 1,66 1,99 2,28
Nov 1,89 2,05 2,17 1,71 2,05 2,33
Oct 1,91 20,8 2,22 1,72 2,07 2,38
Sept 1,81 1,96 2,12 1,63 1,96 2,27
Aug 1,74 1,91 20,4 1,57 1,88 2,18
July 1,85 2,02 2,18 1,67 2,00 2,37
june 2,05 2,24 2,41 1,86 2,23 2,58
May 1,98 2,16 2,31 1,80 2,15 2,48
Apr 1,60 1,78 1,86 1,44 1,74 2,00
March 1,32 1,48 1,54 1,20 1,44 1,65
Feb 1,25 1,38 1,46 1,13 1,36 1,57
Jan 1,06 1,14 1,24 0,95 1,15 1,33
2009
Dec 1,13 1,21 1,31 1,02 1,23 1,41
Nov 1,17 1,28 1,32 1,06 1,27 1,43
Oct 1,18 1,31 1,38 1,07 1,29 1,48
Sept 1,20 1,36 1,40 1,09 1,31 1,51
Aug 0,99 1,08 1,11 0,89 1,07 1,20
July 0,86 0,95 0,99 0,78 0,94 1,07
june 0,74 0,82 0,89 0,67 0,80 0,95
May 0,67 0,74 0,85 0,60 0,72 0,91
Apr 0,72 0,80 0,93 0,64 0,76 0,99
March 0,83 0,92 1,15 0,74 0,89 1,22
Feb
Jan
All values are €/Kg
Information about alloy surcharges

The alloy surcharge is a price component for alloyed stainless steels which is charged in addition to the basic price by steel producers. The alloy surcharge is updated monthly. The alloy surcharge depends on the price development of the alloying elements, the exchange rates and the product type. Thus, a separate alloy surcharge is shown for wire, cold wide strip and the more expensive cold strip (precision strip). Spring steel strip is generally referred to as precision strip. In the case of spring steel strip with the material number 1.4310, a further distinction is made between normal strip and strip with an increased molybdenum content.

Spring Bar Steel, Hot Rolled (56Si7)

The advantage of our hot rolled spring steel is that there are high thicknesses possible. As the tensile strength of the bars is 900-1100 N/mm² it may be necessary to do a heat treatment after fabrication of your parts an before using them. 

The bars can be cut in length according to your wishes.

Material Material Number
56Si7 1.5026
Material Standard

DIN EN 10089
Dimension standard

DIN EN 10092-1
Replaced dimension standard

DIN 4620
Supplied Conditions Standard: + AR (as rolled), on request: +S (treated for shearability), +A (soft annealed), +AC (annealed to achieve spherical carbides)
Products

Flat

Dimensions

Thickness: 4-25 mm
Width: 20-150 mm
Edges EN 10092-1-F-A (semicircular) | EN 10092-1-F-B (semi-rounded side) | EN 10092-1-F-C (rounded edges)
Tensile strength (Rm)

Approx. 900-1100 N/mm² in +AR condition, can be subsequently hardened to higher strengths
Surface

hot rolled, untreated
Information
  • the capacity to spring derives from the elastic formability
  • the required properties are reached through higher ratios of carbon and other alloying additions as silicon, manganese, chrome, molybdenum and vanadium as well as through heat treatment
Heat Treatment
  • appropriate to be tempered in oil

Chemical analysis (in %) according to EN 10089, Table 3

Material Code 56Si7
C 0,52 - 0,60
Si 1,60 - 2,00
Mn 0,60 - 0,90
P ≤ 0,025
S ≤ 0,025
Cu+Sn Cu+10Sn± 0,60

Additional Informtion

MECHANICAL PROPERTIES

Reference values for mechanical properties of tempered samples acc. EN 10089, Annex D

DIMENSIONS

Available dimensions in material 56Si7
Show Data Sheet
erstelle PDF...

Stahl-Becker GmbH

Ottostraße 9-11
63150 HEUSENSTAMM
DEUTSCHLAND

 

Tel.: +49 6104 4059 - 60
Fax: +49 6104 4059 - 70
info@stahlbecker.de

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