*myaeroexpo

Alleima® 6RA11

Product catalog summary

Introduction
Alleima® 6RA11 is an austenitic stainless free-machining steel with added sulphur, conforming to standards such as ASTM 303, UNS S30300, EN Number 1.4305, and W.Nr. 1.4305. It is produced under product standards EN 10088-3 and ASTM A-314, with certification status according to EN 10 204 3.1.

Chemical Composition
The nominal chemical composition includes 0.05% Carbon, 0.4% Silicon, 1.8% Manganese, ≤0.045% Phosphorus, 0.3% Sulphur, 18% Chromium, and 9% Nickel.

Forms of Supply
Alleima® 6RA11 is available in round-cornered square and round billets, with various sizes and tolerances. Surface conditions for square billets include unground, spot ground, or fully ground, while round billets can be peel turned or in black condition.

Sizes and Tolerances
Square billets range from 80 mm to over 200 mm with tolerances from +/-2 mm to +/-5 mm, and lengths from 3 to 6.3 meters. Peel turned round billets range from 75 mm to 450 mm with tolerances from +/-1 mm to +/-3 mm, and lengths up to 10 meters. Unground round billets have specific size intervals with a tolerance of +/-2 mm.

Mechanical Properties
Testing is conducted on solution annealed and quenched test pieces. At 20°C (68°F), the material exhibits a proof strength of ≥205 MPa (≥29.5 ksi), tensile strength of 515-690 MPa (74.5-100 ksi), elongation of ≥35%, and hardness of approximately 170 HB.

Disclaimer
Recommendations are for guidance only. The suitability of the material for specific applications should be confirmed based on actual service conditions. Technical data may change without notice, and this datasheet is valid only for Alleima materials.

Catalog excerpts

Alleima® 6RA11 is an austenitic stainless free-machining steel with addition of sulphur. Certificates Status according to EN 10 204 3.1 Chemical composition (nominal) % C Si Mn P S Cr Ni Forms of supplySizes and tolerances Round-cornered square, as well as round billets, are produced in a wide range of sizes according to the following tables. Larger sizes offered on request. Surface conditions Square billets Unground, spot ground or fully ground condition. Round billets Peel turned or black condition. Datasheet last updated 5/9/2025 6:38:05 AM (supersedes all previous editions)

Open the catalog to page 1

Square billets Size Tolerance Sizes and tolerances apply to the rolled/forged condition. Peel turned round billets Size Tolerance Unground round billets Size Tolerance Length Testing is performed on separately solution annealed and quenched test piece. The following figures apply on material in the solution annealed and quenched condition. Metric units Datasheet last updated 5/9/2025 6:38:05 AM (supersedes all previous editions)

Open the catalog to page 2

Tensile strength Elong Contr. HB Imperial units a) Rp0.2 and Rp1.0 corresponds to 0.2% offset and 1.0% offset yield strength, respectively. b) Based on L0 = 5.65/S0 , where L0 is the original gauge length and S0 the original cross-section area. Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Alleima materials. Datasheet last updated 5/9/2025 6:38:05 AM (supersedes...

Open the catalog to page 3