Alleima® 3X1R63 Billets

Datasheet updated

2022-06-29 13:45
(supersedes all previous editions)

Alleima® 3X1R63 is an austenitic stainless steel with a high molybdenum content. Significant properties, such as general and pitting corrosion resistance, are improved in comparison with ASTM 316L.

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Standards

  • ASTM: 317L
  • UNS: S31703
  • EN Number: 1.4438
  • W.Nr.: 1.4438
  • SS: 2367
  • BS: 317S16

Product standards

  • EN 10088-3
  • ASTM A-314

Suitable for production of flanges etc. according to ASTM A-182

Certificates

Status according to EN 10 204 3.1

Chemical composition (nominal) %

C Si Mn P S Cr Ni Mo Others
≤0.030 0.4 1.8 ≤0.030 ≤0.010 18.5 13.5 3.1 -

Forms of supply

Sizes 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.

Square billets
Size Tolerance Length
mm mm m
80 +/-2 4 - 6.3
100, 114, 126, 140, 150 +/-3 4 - 6.3
160, 180, 195, 200 +/-4 4 - 6.3
>200 - 350 +/-5 3 - 5.3

Sizes and tolerances apply to the rolled/forged condition.

Peel turned round billets
Size Tolerance Length
mm mm m
75 - 200 (5 mm interval) +/-1 max 10
>200 - 450 +/-3 3 - 8
Unground round billets
Size Tolerance Length
mm mm m
77 - 112 (5 mm interval) +/-2 max 10
124, 134 +/-2 max 10
127, 147, 157 +/-2 max 10
142, 152, 163 +/-2 max 10
168, 178, 188 +/-2 max 10
183, 193 +/-2 max 10

Other products

  • Hollow bar

Mechanical properties

At 20°C (68°F)

Metric units
Proof strength Tensile strength Elong. Hardness
Rp0.2a Rp1.0a Rm Ab Vickers
MPa MPa MPa %
approx.
≥220 ≥250 515-690 ≥35 155
Imperial units
Proof strength Tensile strength Elong. Hardness
Rp0.2a Rp1.0a Rm Ab Vickers
ksi ksi ksi %
approx.
≥32 ≥36 75-100 ≥35 155

1 MPa = 1 N/mm2
a) Rp0.2 and Rp1.0 correspond to 0.2% offset and 1.0% offset yield strength, respectively.
b) Based on L0 = 5.65 ÖS0 where L0 is the original gauge length and S0 the original cross-section area.

Impact strength

Due to its austenitic microstructure, Alleima® 3R64 has very good impact strength both at room temperature and at cryogenic temperatures.

Tests have demonstrated that the steel fulfils the requirements according to the European standards prEN 13445-2 (UFPV-2) ( (min. 60 J (44 ft-lb) at -270 oC (-455 oF)) and prEN 10216-5 (min. 60 J (44 ft-lb) at -196 oC (-320oF).

At high temperatures

Metric units
Temperature Proof strength
°C Rp0.2a Rp1.0a
MPa MPa
min. min.
 50 196  221 
 100  172  197
 150  155  180
 200  144  169
 250  136  161
 300  129  154
 350  123  148
 400  119  144
 450  115  140
500 110 135
Imperial units
Temperature Proof strength
°F Rp0.2a Rp1.0a
ksi ksi
min. min.
200 25.4 29.0
400 20.8 24.4
600 18.4 22.1
800 17.0 20.6
1000 15.4 19.0

Disclaimer: 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.