EN 10270-1:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stahldraht für Federn - Teil 1: Patentiert gezogener unlegierter FederstahldrahtFils en acier pour ressorts mécaniques - Partie 1: Fils pour ressorts en acier non allié, patentés, tréfilés à froidSteel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel wire77.140.65Jeklene žice, jeklene vrvi in verigeSteel wire, wire ropes and link chains77.140.25Vzmetna jeklaSpring steelsICS:Ta slovenski standard je istoveten z:EN 10270-1:2011SIST EN 10270-1:2012en01-januar-2012SIST EN 10270-1:2012SLOVENSKI
STANDARDSIST EN 10270-1:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10270-1
October 2011 ICS 77.140.25 Supersedes EN 10270-1:2001English Version
Steel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel wire
Fils en acier pour ressorts mécaniques - Partie 1 : Fils pour ressorts en acier non allié, patentés, tréfilés à froid
Stahldraht für Federn - Teil 1: Patentiert gezogener unlegierter Federstahldraht This European Standard was approved by CEN on 10 September 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10270-1:2011: ESIST EN 10270-1:2012

Additional information . 23SIST EN 10270-1:2012

For specific applications another tensile strength may be agreed.
5 Information to be supplied by the purchaser The purchaser shall clearly state in his enquiry or order the product and following information:
a) the desired quantity; b) the term spring steel wire or straightened and cut lengths; c) the number of this European standard: EN 10270-1; d) the steel grade (see Tables 1 and 2); e) the nominal wire diameter selected from Table 3 and for cut length the length and the length tolerance class (see Table 7); f) the coating indicated by its abbreviation and surface finish (see 6.3); g) the form of delivery and unit mass (see 6.2); h) the type of inspection document; i) any particular agreement. EXAMPLE 5 t patented cold drawn tempered spring steel wire according to this standard, grade SM, nominal diameter 2,50 mm, phosphate coated on spools of about 300 kg; inspection document 3.1 according to EN 10204:2004: SIST EN 10270-1:2012

max. max. max. SL, SM, SH 0,35 to 1,00 0,10 to 0,30 0,40 to 1,20 0,035 0,035 0,20 DM, DH 0,45 to 1,00 0,10 to 0,30 0,40 to 1,20 0,020 0,025 0,12 a Such a wide range is stipulated to accommodate the whole range of sizes. For individual sizes the carbon range is substantially more restricted. b The range of manganese content in the table is wide to cope with various processing situations and the broad size range. The actual figures per size shall be more restricted. c For the manganese content, a different range from the one indicated in the table may be agreed at the time of ordering, with a maximum not exceeding 1,20 % and with a minimum range of 0,20 %.
The addition of micro-alloying elements may be agreed between the manufacturer and the purchaser. NOTE Some diameter ranges require particular attention for residuals. Therefore no figures are mentioned for chromium, nickel, molybdenum, tin, etc., leaving room for special arrangements between Purchaser and Supplier, dependent on their mutual processing conditions. This is also the case for the aluminium content. 6.2 Form of delivery The wire shall be delivered in unit packages of a coil (singles, carriers or formers), spools, spoolless cores or as straight lengths. Unless otherwise agreed at the time of ordering, the form of delivery will be coils; straight lengths shall be supplied in bundles. 6.3 Coating and surface finish The spring wire may be supplied phosphate coated (ph) either dry drawn or wet drawn, copper coated (cu), zinc (Z) or zinc/aluminium (ZA) coated. Other coatings, considered as special, can be agreed between the purchaser and the supplier (see Annex A). SIST EN 10270-1:2012

For wire grades
Nominal size Permissible deviations SL SM DM SH DH e
mm mm MPa MPa MPa MPa MPa %
mm mm
d = 0,05
2 800 to 3 520
0,015 4 0,05 < d ≤ 0,06
2 800 to 3 520
0,022 2 0,06< d ≤ 0,07 ± 0,003
2 800 to 3 520
0,030 2 0,07< d ≤ 0,08
2 800 to 3 480
0,039 5 0,08< d ≤ 0,09
2 800 to 3 430
0,049 9 0,09 < d ≤ 0,10
2 800 to 3 380
0,061 7 0,10 < d ≤ 0,11
2 800 to 3 350
0,074 6 0,11 < d ≤ 0,12 ± 0,004
2 800 to 3 320
0,088 8 0,12 < d ≤ 0,14
2 800 to 3 250
0,121 0,14 < d ≤ 0,16
2 800 to 3 200
coiling test as - f - f 0,158 0,16 < d ≤ 0,18
2 800 to 3 160
specified in
0,200 0,18 < d ≤ 0,20 ± 0,005
2 800 to 3 110
7.4.3
0,247 0,20 < d ≤ 0,22
2 770 to 3 080
0,298 0,22 < d ≤ 0,25
2 720 to 3 010
0,385 0,25 < d ≤ 0,28
2 680 to 2 970
0,488 0,28 < d ≤ 0,30
2 370 to 2 650 2 370 to 2 650 2 660 to 2 940 2 660 to 2 940
0,555 0,30 < d ≤ 0,32 ± 0,008
2 350 to 2 630 2 350 to 2 630 2 640 to 2 920 2 640 to 2 920
0,631 0,32 < d ≤ 0,34
2 330 to 2 600 2 330 to 2 600 2 610 to 2 890 2 610 to 2 890
0,713 0,34 < d ≤ 0,36
2 310 to 2 580 2 310 to 2 580 2 590 to 2 870 2 590 to 2 870
0,799 0,36 < d ≤ 0,38
2 290 to 2 560 2 290 to 2 560 2 570 to 2 850 2 570 to 2 850
0,890
to be continued SIST EN 10270-1:2012

c Permissible depth of surface defects for wire grades DM, DH Permissible decarburi- zation depth for wire grades DM, DH Mass h kg/ 1 000 m
For wire grades
Nominal size Permissible deviations SL SM DM SH DH e
mm mm MPa MPa MPa MPa MPa %
mm mm
0,38 < d ≤ 0,40
2 270 to 2 550 2 270 to 2 550 2 560 to 2 830 2 560 to 2 830
0,985 0,40 < d ≤ 0,43
2 250 to 2 520 2 250 to 2 520 2 530 to 2 800 2 530 to 2 800
1,14 0,43 < d ≤ 0,45
2 240 to 2 500 2 240 to 2 500 2 510 to 2 780 2 510 to 2 780
1,25 0,45 < d ≤ 0,48
2 220 to 2 480 2 220 to 2 480 2 490 to 2 760 2 490 to 2 760
1,42 0,48 < d ≤ 0,50 ± 0,008
2 200 to 2 470 2 200 to 2 470 2 480 to 2 740 2 480 to 2 740
coiling test
1,54 0,50 < d ≤ 0,53
2 180 to 2 450 2 180 to 2 450 2 460 to 2 720 2 460 to 2 720
as
1,73 0,53 < d ≤ 0,56
2 170 to 2 430 2 170 to 2 430 2 440 to 2 700 2 440 to 2 700
specified in - f - f 1,93 0,58 < d ≤ 0,60
2 140 to 2 400 2 140 to 2 400 2 410 to 2 670 2 410 to 2 670
7.4.3
2,22 0,60 < d ≤ 0,63
2 130 to 2 380 2 130 to 2 380 2 390 to 2 650 2 390 to 2 650
2,45 0,63 < d ≤ 0,65
2 120 to 2 370 2 120 to 2 370 2 380 to 2 640 2 380 to 2 640
2,60 0,65 < d ≤ 0,70 ± 0,010
2 090 to 2 350 2 090 to 2 350 2 360 to 2 610 2 360 to 2 610
3,02 0,70 < d ≤ 0,75
2 070 to 2 320 2 070 to 2 320 2 330 to 2 580 2 330 to 2 580
3,47 0,75 < d ≤ 0,80
2 050 to 2 300 2 050 to 2 300 2 310 to 2 560 2 310 to 2 560
3,95 0,80 < d ≤ 0,85 ± 0,015
2 030 to 2 280 2 030 to 2 280 2 290 to 2 530 2 290 to 2 530
4,45 0,85 < d ≤ 0,90
2 010 to 2 260 2 010 to 2 260 2 270 to 2 510 2 270 to 2 510
4,99 0,90 < d ≤ 0,95
2 000 to 2 240 2 000 to 2 240 2 250 to 2 490 2 250 to 2 490
5,59 0,95 < d ≤ 1,00
1 720 to 1 970 1 980 to 2 220 1 980 to 2 220 2 230 to 2 470 2 230 to 2 470
6,17 1,00 < d ≤ 1,05
1 710 to 1 950 1 960 to 2 200 1 960 to 2 200 2 210 to 2 450 2 210 to 2 450
1 % max. 1.5 % max. 6,80 1,05 < d ≤ 1,10 ± 0,020 1 690 to 1 940 1 950 to 2 190 1 950 to 2 190 2 200 to 2 430 2 200 to 2 430 40
of wire of wire 7,46 1,10 < d ≤ 1,20
1 670 to 1 910 1 920 to 2 160 1 920 to 2 160 2 170 to 2 400 2 170 to 2 400
diameter diameter 8,88 to be continued
c Permissible depth of surface defects for wire grades DM, DH Permissible decarburi- zation depth for wire grades DM, DH Mass h kg/ 1 000 m
For wire grades
Nominal size Permissible deviations SL SM DM SH DH e
mm mm MPa MPa MPa MPa MPa %
mm mm
1,20 < d ≤ 1,25
1 660 to 1 900 1 910 to 2 140 1 910 to 2 140 2 150 to 2 380 2 150 to 2 380
9,63 1,25 < d ≤ 1,30
1 640 to 1 890 1 900 to 2 130 1 900 to 2 130 2 140 to 2 370 2 140 to 2 370
10,42 1,30 < d ≤ 1,40
1 620 to 1 860 1 870 to 2 100 1 870 to 2 100 2 110 to 2 340 2 110 to 2 340
12,08 1,40 < d ≤ 1,50 ± 0,020 1 600 to 1 840 1 850 to 2 080 1 850 to 2 080 2 090 to 2 310 2 090 to 2 310
13,90 1,50 < d ≤ 1,60
1 590 to 1 820 1 830 to 2 050 1 830 to 2 050 2 060 to 2 290 2 060 to 2 290
15,8 1,60 < d ≤ 1,70
1 570 to 1 800 1 810 to 2 030 1 810 to 2 030 2 040 to 2 260 2 040 to 2 260
17,8 1,70 < d ≤ 1,80
1 550 to 1 780 1 790 to 2 010 1 790 to 2 010 2 020 to 2 240 2 020 to 2 240
20,0 1,80 < d ≤ 1,90
1 540 to 1 760 1 770 to 1 990 1 770 to 1 990 2 000 to 2 220 2 000 to 2 220
22,3 1,90 < d ≤ 2,00
1 520 to 1 750 1 760 to 1 970 1 760 to 1 970 1 980 to 2 200 1 980 to 2 200
1 % max. 1.5 % max. 24,7 2,00 < d ≤ 2,10 ± 0,025 1 510 to 1 730 1 740 to 1 960 1 740 to 1 960 1 970 to 2 180 1 970 to 2 180
22 of wire of wire 27,2 2,10 < d ≤ 2,25
1 490 to 1 710 1 720 to 1 930 1 720 to 1 930 1 940 to 2 150 1 940 to 2 150 40
diameter diameter 31,2 2,25< d ≤ 2,40
1 470 to 1 690 1 700 to 1 910 1 700 to 1 910 1 920 to 2 130 1 920 to 2 130
35,5 2,40 < d ≤ 2,50
1 460 to 1 680 1 690 to 1 890 1 690 to 1 890 1 900 to 2 110 1 900 to 2 110
38,5 2,50 < d ≤ 2,60
1 450 to 1 660 1 670 to 1 880 1 670 to 1 880 1 890 to 2 100 1 890 to 2 100
41,7 2,60 < d ≤ 2,80
1 420 to 1 640 1 650 to 1 850 1 650 to 1 850 1 860 to 2 070 1 860 to 2 070
48,3 2,80 < d ≤ 3,00
1 410 to 1 620 1 630 to 1 830 1 630 to 1 830 1 840 to 2 040 1 840 to 2 040
55,5 3,00 < d ≤ 3,20 ± 0,030 1 390 to 1 600 1 610 to 1 810 1 610 to 1 810 1 820 to 2 020 1 820 to 2 020
63,1 3,20 < d ≤ 3,40
1 370 to 1 580 1 590 to 1 780 1 590 to 1 780 1 790 to 1 990 1 790 to 1 990
71,3 3,40 < d ≤ 3,60
1 350 to 1 560 1 570 to 1 760 1 570 to 1 760 1 770 to 1 970 1 770 to 1 970
79,9 3,60 < d ≤ 3,80
1 340 to 1 540 1 550 to 1 740 1 550 to 1 740 1 750 to 1 950 1 750 to 1 950
89,0 to be continued SIST EN 10270-1:2012

For wire grades
Nominal size Permissible deviations SL SM DM SH DHe
mm mm MPa MPa MPa MPa MPa %
mm mm
3,80 < d ≤ 4,00 ± 0,030 1 320 to 1 520 1 530 to 1 730 1 530 to 1 730 1 740 to 1 930 1 740 to 1 930
98,6 4,00 < d ≤ 4,25
1 310 to 1 500 1 510 to 1 700 1 510 to 1 700 1 710 to 1 900 1 710 to 1 900
111 4,25 < d ≤ 4,50
1 290 to 1 490 1 500 to 1 680 1 500 to 1 680 1 690 to 1 880 1 690 to 1 880
125 4,50 < d ≤ 4,75 ± 0,035 1 270 to 1 470 1 480 to 1 670 1 480 to 1 670 1 680 to 1 860 1 680 to 1 860
139 4,75 < d ≤ 5,00
1 260 to 1 450 1 460 to 1 650 1 460 to 1 650 1 660 to 1 840 1 660 to 1 840
154 5,00 < d ≤ 5,30
1 240 to 1 430 1 440 to 1 630 1 440 to 1 630 1 640 to 1
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