ERGSTE® 1.4305 UA
Stainless austenitic freecutting steel - Stock standard
Product standard:
EN 10088-3
Material standard:
W.Nr.1.4305
DIN EN X8CrNiS18-9
AISI 303
SS.2346
Material description:
ERGSTE® 1.4305 UA is a stainless austenitic chrome-nickel steel with excellent machining properties. The material is characterized by tight tolerances, excellent straightness and the fine tuned works analysis ensures consistent high quality.
Chemical analysis (%):
| Element: | ERGSTE® 1.4305 UA |
| C max. | 0,10 |
| Si max. | 1,00 |
| Mn max. | 2,00 |
| P max. | 0,045 |
| S | 0,15 – 0,35 |
| Cr | 17,00 – 19,00 |
| Mo max. | 0,70 |
| Ni | 8,00 – 10,00 |
| Cu max. | 1,00 |
| N max. | 0,11 |
| Fe | Rest |
Mechanical properties:
Tensile strength, Rm: 750 – 1000 MPa. (deviations see stock table)
Condition:
Drawn, ground, polished
Technical properties:
Straightness: ≤ 0,5 mm / 1000 mm
Surface roughness: Rmax ≤ 5µm / Rz ≤ 3µm / Ra ≤ 0,5µm
Delivery form:
Lengths of 3000 mm (±50 mm)
Tolerances:
According to DIN EN 10278 – ISO h07 / h08
| Diameter: | ISO h08 [mm] | ISO h07 [mm] |
| >1 to 3 | +0/-0,014 | +0/-0,010 |
| >3 to 6 | +0/-0,018 | +0/-0,012 |
| >6 to 10 | +0/-0,022 | +0/-0,015 |
| >10 to 18 | +0/-0,027 | +0/-0,018 |
Stock dimensions:
| Dia. [mm] | Tol. EN ISO | Rm [MPa] | Ends |
| 3,00 | h7 | 750 – 1000 | Chamfered / pointed |
| 4,00 | h7 | 750 – 1000 | Both chamfered |
| 5,00 | h7 | 750 – 1000 | Chamfered / pointed |
| 6,00 | h8 | 700 – 850 | Both cut |
| 7,00 | h7 | 750 – 1000 | Chamfered / pointed |
| 8,00 | h7 | 700 – 1000 | Chamfered / pointed |
| 10,0 | h8 | 650 – 850 | Chamfered / pointed |
| 12,0 | h8 | 700 – 1000 | Both chamfered |
| 14,0 | h8 | 750 – 1000 | Chamfered / pointed |
Dimensions in range ø 0,70-28 are offered on request.
Typical applications:
Machined precision parts such as fittings, spacers, nozzles, screws and nuts, for use in slightly corrosive environments.
Tests and certificates:
The material is supplied 100% crack tested.
Certificate according to EN 10204/3.1.
ERGSTE is a Zapp® brand name.
Zapp® is a registered trademark of Zapp AG.
Zapp holds the following certificates and approvals: ISO 9001, ISO TS 16949 for automotive applications, AS 9100 for aeronautical applications, Pressurized Container Directives 97/23/EC and AD2000-W0.
Zapp-group representatives in Scandinavia: B.B.S. i Halmstad AB.
Subject to typing errors.