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Stainless Steel

CHEMICAL COMPOSITION. HEAT ANALYSIS (MASS %) EN 10270-3

STAINLESS STEEL SPRING C Max. Si Max. Mn Max. P Max. S Cr Mo Ni Other elements
Symbolic designation Numerical designation AISI                  
X10CrNi18-8 (NS / HS) 1.4310 302 0.05 - 0.15 2.00 2.00 0.045 0.015 16.0 - 19.0 ≤ 0.80 6.0 - 9.5 N ≤ 0.11
X5CrNiMo17-12-2 1.4401 316 ≤ 0.07 1.00 2.00 0.045 0.015 16.5 - 18.5 2.00 - 2.50 10.0 - 13.0 N ≤ 0.11
X7CrNiAl17-7 1.4568 631 ≤ 0.09 0.70 1.00 0.040 0.015 16.0 - 18.0 - 6.5 - 7.8 Al: 0.70 - 1.50
X5CrNi18-10 (NS / HS) 1.4301 304 ≤ 0.07 1.00 2.00 0.045 0.015 17.5 - 19.5 - 8.0 - 10.5 N ≤ 0.11
X1NiCrMoCu25-20-5 1.4539 904L ≤ 0.020 0.70 2.00 0.030 0.010 19.0 - 21.0 4.0 - 5.0 24.0 - 26.0 N ≤ 0.15

 

 

CHEMICAL COMPOSITION (HEAT ANALYSIS OF MARTENSITIC AND PRECIPITATION-HARDENED STAINLESS STEEL, FERRITIC STAINLESS STEEL AND AUSTENITIC STAINLESS STEEL) according to EN 10088-3

STAINLESS STEEL FOR GENERAL USE mass %
Symbolic Numerical AISI C Si max. Mn max. P max. S N max. Cr Cu Mo Ni Ti
Martensitic Steel                          
X30Cr13 1.4028 420 0.26 - 0.35 1.00 1.50 0.040 ≤ 0.03 - 12.00- 14.00 - - - -
Ferritic Steel                          
X6Cr17 1.4016 430 ≤ 0.08 1.00 1.00 0.04 ≤ 0.030 - 16.00 - 18.00 - - ≤ 0.75 -
Austenitic Steel                          
X2CrNi18-9 1.4307 304L ≤ 0.03 1.00 2.00 0.045 ≤ 0.030 0.11 17.50 - 19.50 - - 8.00 - 10.00 -
X5CrNi18-10 1.4301 304 ≤ 0.07 1.00 2.00 0.045 ≤ 0.030 0.11 17.00 - 19.50 - - 8.00 - 10.50 -
X8CrNiS18-9 1.4305 303 ≤ 0.10 1.00 2.00 0.045 0.15 - 0.35 0.11 17.00 - 19.00 ≤ 1.00 - 8.00 - 1.00 -
X2CrNiMo17-12-2 1.4401 316L ≤ 0.03 1.00 2.00 0.045 ≤ 0.030 0.11 16.50 - 18.50 - 2.00 - 2.50 10.00 - 13.00 -
X2CrNiMo18-14-3 1.4435 316L ≤ 0.03 1.00 2.00 0.045 ≤ 0.030 0.11 17.00 - 19.00 - 2.50 - 3.00 12.50 - 15.00 -
X5CrNiMo17-12-2 1.4401 316 ≤ 0.07 1.00 2.00 0.045 ≤ 0.030 0.11 16.50 - 18.50 - 2.00 - 2.50 10.00 - 13.00 -
X3CrNiMo17-13-3 1.4436 316 ≤ 0.05 1.00 2.00 0.045 ≤ 0.030 0.11 16.50 - 18.50 - 2.50 - 3.00 10.50 - 13.00 -
X6CrNiMoTi17-12-2 1.4571 316Ti ≤ 0.08 1.00 2.00 0.045 ≤ 0.030 - 16.50 - 18.50 - 2.00 - 2.50 10.50 - 13.50 5 x C - 0.70
X3CrNiCu18-9-4 1.4567 304Cu ≤ 0.04 1.00 2.00 0.045 ≤ 0.030 ³⁾ 0.11 17.00 - 19.00 3.00 - 4.00 - 8.50 - 10.50 -
X8CrMnCuNB17-8-3 1.4597 204Cu ≤ 0.10 ≤ 2.00 6.50 - 8.50 ≤ 0.040 ≤ 0.015 - 16.00 - 18.00 2.00 - 3.50 ≤ 1.00 ≤ 2.00 -
X12CrNi23-13 1.4833 3095 ≤ 0.08 ≤ 0.75 ≤ 2.00 ≤ 0.040 ≤ 0.015 - 22.00-24.00 - - 12.00-14.00 -
X8CrNi25-21 1.4845 310S ≤ 0.08 ≤ 1.50 ≤ 2.00 ≤ 0.040 ≤ 0.015 - 24.00-26.00 - - 19.00-22.00 -
X15CrNiSi25-21 1.4841 314 0.02 1.50-3.00 ≤ 0.02 ≤ 0.045 ≤ 0.015 - 24.00-26.00 - - 19.00-22.00 -
 
STAINLESS STEEL SPRING
Symbolic designation EUROPEA EN 10270-3 AISI EEUU ASTM JAPONESA JIS CHINA
X10CrNi18-8 1.4310 302NS AISI 302 NS SUS 302-WPB -
X10CrNi18-8 1.4310 302HS AISI 302 HLS - -
X5CrNiMo17-12-2 1.4401 316 AISI 316 SUS 316-WPA -
X7CrNiAl17-7 1.4568 631 AISI 631 SUS 631J1-WPC -
X5CrNi18-10 (NS / HS) 1.4301 304 AISI 304 SUS 304-WPB -
X1NiCrMoCu25-20-5 1.4539 904L - - -

 

STAINLESS STEEL FOR GENERAL USE
Symbolic Numerical EN 10088-3 AISI US ASTM JAPANESE JIS CHINESE
Martensitic steel          
X30Cr13 1.4028 420      
Ferritic steel          
X6Cr17 1.4016 430      
Austenitic steel          
X2CrNi18-9 1.4307 304L      
X5CrNi18-10 1.4301 304      
X8CrNiS18-9 1.4305 303      
X2CrNiMo17-12-2 1.4404 316L      
X2CrNiMo18-14-3 1.4435 316L      
X5CrNiMo17-12-2 1.4401 316      
X3CrNiMo17-13-3 1.4436 316      
X6CrNiMoTi17-12-2 1.4571 316Ti      
X3CrNiCu18-9-4 1.4567 304Cu      
X8CrMnCuNB17-8-3 1.4597 204Cu      
X12CrNi23-13 1.4833 3095      
X8CrNi25-21 1.4845 310S      
X15CrNiSi25-21 1.4841 314      
 

TENSILE STRENGTH of Stainless Steel DRAWN WIRE for Springs EN 10270-3

Tensile strength (MPa) for the following types of steel
  1.4310 1.4401 1.4568 1.4301 1.4539
Nominal diameter mm d 302NS 302HS 316 631 304 NS 304 HS 904L
  min. max. min. max. min. max. min. max. min. min. max. min. max.
d ≤ 0.20 2200 2530 2350 2710 1725 1990 1975 2280 2000 2150 2300 1600 1840
0.20 < d ≤ 0.30 2150 2480 2300 2650 1700 1960 1950 2250 1975 2050 2280 1550 1790
0.30 < d ≤ 0.40 2100 2420 2250 2590 1675 1930 1925 2220 1925 2050 2220 1550 1790
0.40 < d ≤ 0.50 2050 2360 2200 2530 1650 1900 1900 2190 1900 1950 2190 1500 1750
0.50 < d ≤ 0.65 2000 2300 2150 2480 1625 1870 1850 2130 1850 1950 2130 1450 1670
0.65 < d ≤ 0.80 1950 2250 2100 2420 1600 1840 1825 2100 1800 1850 2070 1450 1670
0.80 < d ≤ 1.00 1900 2190 2050 2360 1575 1820 1800 2070 1775 1850 2050 1400 1610
1.00 < d ≤ 1.25 1850 2130 2000 2300 1550 1790 1750 2020 1725 1750 1990 1350 1560
1.25 < d ≤ 1.50 1800 2070 1950 2250 1500 1730 1700 1960 1675 1750 1930 1350 1560
1.50 < d ≤ 1.75 1750 2020 1900 2190 1450 1670 1650 1900 1625 1650 1870 1300 1500
1.75 < d ≤ 2.00 1700 1960 1850 2130 1400 1610 1600 1840 1575 1650 1820 1300 1500
2.00 < d ≤ 2.50 1650 1900 1750 2020 1350 1560 1550 1790 1525 1550 1760 1300 1500
2.50 < d ≤ 3.00 1600 1840 1700 1960 1300 1500 1500 1730 1475 1550 1700 1300 1500
3.00 < d ≤ 3.50 1550 1790 1650 1900 1250 1440 1450 1670 1425 1450 1640 1300 1500
3.50 < d ≤ 4.25 1500 1730 1600 1840 1225 1410 1400 1610 1400 1450 1610 1250 1440
4.25 < d ≤ 5.00 1450 1670 1550 1790 1200 1380 1350 1560 1350 1350 1560 1250 1440
5.00 < d ≤ 6.00 1400 1610 1500 1730 1150 1330 1300 1500 1300 1350 1500 1250 1440
6.00 < d ≤ 7.00 1350 1560 1450 1670 1125 1300 1250 1440 1250 1300 1440 1200 1380
7.00 < d ≤ 8.50 1300 1500 1400 1610 1075 1240 1250 1440 1200 1300 1380 1150 1330
8.50 < d ≤ 10.00 1250 1440 1350 1560 1050 1210 1250 1440 1175 1250 1360 - -

NOTE - Can be supplied with d ≥ 14mm not subject to standards, under a commercial agreement. 

 

 

TENSILE STRENGTH RANGE IN EACH UNIT PACKAGE (REEL, COIL, PACKAGE) EN 10270-3

Diameter of the wire d (mm) Maximum range
d ≤ 1.50 100
1.50 < d ≤ 10.00 70

 

STEEL FOR VARIOUS APPLICATIONS

Symbolic Numerical EN 10088-3 AISI Strength [N/mm2]
Annealed State Semi-Hard State
X6Cr17 1.4016 430 ≤ 640 650-900
X2CrNi18-9 1.4307 304L ≤ 640 650-900
X5CrNi18-10 1.4301 304 ≤ 640 650-900
X8CrNiS18-9 1.4305 303 ≤ 590 600-700
X3CrNiCu18-9-4 1.4567 304Cu ≤ 600 600-700
 

SURFACE QUALITY EN 10270-3

The surface of the wire must be smooth and, insofar as is possible, free of scratches, pitting and other surface defects that may make the wire unusable. The alternating torsion test is one method that makes it possible to detect surface discontinuities.
If the wire is to be used for manufacturing springs that are used for high stresses, the special surface quality requirements and tests can be agreed on the customer's instruction when the quote is requested or the order is placed.
Surface Finishes for Wires for Springs:
Soap S-Co Standard coating

Special soap coating SS-Co / S-Co+

Improvement of the spring coiling
Bright Bright surface appearance, although there is a thin layer of soap
Polished Wet drawn
Dulll nickel plating Dry drawn
Bright nickel plating Wet drawn

 

SURFACE QUALITY EN 10088-3

Minor surface irregularities that are inherent to the manufacturing process are permitted. When necessary, it is possible to agree on more specific surface quality requirements when placing the order, based on the EN 10221 Standard.
 

DIAMETER TOLERANCES EN 10270-3

Nominal diameter d (mm) Diameter tolerances (mm)
Reels or coils
T14 T15
d ≤ 0.20 ± 0.005 ± 0.004
0.20 < d ≤ 0.25 ± 0.005 ± 0.004
0.25 < d ≤ 0.40 ± 0.008 ± 0.005
0.40 < d ≤ 0.64 ± 0.008 ± 0.005
0.64 < d ≤ 0.80 ± 0.010 ± 0.008
0.80 < d ≤ 1.00 ± 0.010 ± 0.008
1.00 < d ≤ 1.60 ± 0.015 ± 0.010
1.60 < d ≤ 2.25 ± 0.015 ± 0.010
2.25 < d ≤ 3.19 ± 0.020 ± 0.015
3.19 < d ≤ 4.00 ± 0.020 ± 0.015
4.00 < d ≤ 4.50 ± 0.025 ± 0.020
4.50 < d ≤ 6.00 ± 0.025 ± 0.020
6.00 < d ≤ 6.25 ± 0.025 ± 0.020
6.25 < d ≤ 7.00 ± 0.030 ± 0.025
7.00 < d ≤ 9.00 ± 0.030 ± 0.025
9.00 < d ≤ 10.00 ± 0.035 ± 0.030

NOTE 1 - Can be supplied with d ≥ 14mm not subject to standards, under a commercial agreement.
NOTE 2 - T15 on request

The tolerances of stainless steel wires for general use must be agreed at the time of the order or quote and can be supplied with h6-h9 tolerances.

 

STANDARD LENGTH TOLERANCES

NOMINAL LENGTH TOLERANCE
L < = 1000 mm. +/- 1 mm.
1000 < L < = 4000 - 0mm. / +3 mm.
* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.
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