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Property Class A4L-70 Material Datasheet

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Material Description

Material Number Standard Scope Standard Status Country Predecessor Application temperature [°C]
A4L-70 (DIN EN ISO 3506-1 : 2020-08) DIN EN ISO 3506-1 : 2020-08 Supersedes DIN EN ISO 3506-1 : 2010-04 Valid Germany Property Class A4L-70 -60 - 150 1)
1) Remark: Non-stabilized austenitic steels of grade A4 are "acid proof steels", which are Mo alloyed and give a considerably better resistance to corrosion (boiling sulfuric acid, to a certain extent to chloride containing environment). Lower limit of operational temperature for headless screws: -200 °C Application: cellulose industry, food industry, shipbuilding, bolts and nuts acc. to DIN 267-13

Chemical Composition

C [%] Cr [%] Cu [%] Mn [%] Mo [%] Ni [%] P [%] S [%] Si [%]
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Mechanical Properties

Condition Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa]
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Cross Reference

Material Name Country Standard
A4L-70 Europe EN ISO 3506-1
A4L-70 International ISO 3506-1
A4L-70 Germany DIN 267-13
X2CrNiMo17-12-2 1)
1.4404 1)
X2CrNiMoN17-11-2 1)
1.4406 1)
X2CrNiMo17-12-3 1)
1.4432 1)
X2CrNiMo18-14-3 1)
1.4435 1)
X2CrNiMoN17-13-5 1)
1.4439 1)
X2CrNiMoN17-13-3 1)
1.4429 1)
1) Source: AD 2000 W 7/2 : 2022-03

Producer/Supplier/Trade names

Tradename Supplier
A4L-70 Bossard Deutschland GmbH, Illerrieden
A4L-70 BUMAX AB, Åshammar
A4L-70 KAMAX Automotive GmbH, Homberg (Ohm)
A4L-70 Nedschroef Fasteners B.V, Helmond
A4L-70 Johann Maier GmbH & Co. KG, Stuttgart

Material Compliance

REACh RoHS
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