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Home  ꄲ  Products  ꄲ  ALTA 1.2083 Stainless Steel Specification

Martensitic Stainless Steel

ALTA 1.2083 Stainless Steel Specification

Steel properties

ALTA 1.2083/40Cr13 is a high Chromium martensitic stainless steel. Its strength and hardness are similar to 30Cr13/1.4028 steel, but its toughness and corrosion resistance are slightly lower, and its weldability is poor. Other properties are similar to 30Cr13/1.4028 material.

Applications

² Molds for pressing of chemically-aggressive plastic substances etc

² Production of optical product parts, such as cameras and sun lenses

² Medical device

Chemical composition

Chemical Composition per %

 

C

Si

Mn

P

S

Cr

Ni

Cu

Min.

0.36

 

 

 

 

12.5

 

 

Max.

0.45

1.00

1.00

0.030

0.030

14.5

0.25

0.30

Basic melting process :

IM/EAF + LF + VD + (ESR)

 

Hardness :

Max 235 HB (annealed)

Reduction ratio :

5 : 1 minimum or required

Grain size :

≥ 5.0 per ASTM E112

Non-metallic inclusion :

≤ 1.0 (thick), ≤ 1.5 (thin) per ASTM E45 method A (more pure by ESR route)

Ultrasonic Test

SEP1921, EN 10308, ASTM A388 or agreed methods

Macro-structure

As per ASTM E381

Straightness / flatness

≤ 1.5 mm / m (machined), ≤ 2.5 mm / m (black)

Tolerance

Per discussed

Size range (round bars)

Ø 12 - 600 mm

Size range (flats, plates)

8 - 450 mm in thickness

max. 1100 mm in width

Heat treatment

Annealing

Temperature(°C)

Hardness

750 - 850

max. 235 HB

 

Hot-forming

Temperature(°C)

850 - 1100

 

Hardening and tempering

Quenching temperature(°C)

Quenching medium

Frequently-used tempering temperature(°C)

1020 - 1050

Oil

150 - 300

 

Ac1 Ac3 Ar1 Ms
800 1000 780 270

 

Coefficient of thermal conductivity : λ W/(m·K)

Temperature °C 20 100 200 300 400 500 600 700
λ 28.9 28.1 29.3 29.3 29.3 28.9 28.5 28.1

 

Coefficient of linear expansion : α(mm/(mm·°C))

Temperature °C 20~100 20~200 20~300 20~400 20~500
Αx 10-6 10.50 11.00 11.00 1.50 12.00

 

Resistivity : ρ(Ω·m)

Temperature °C 20 100 200 300 400 500 600 700
P x 10-6 0.59 0.65 0.71 0.79 0.86 0.94 1.00 1.08

 

Downloads

  • 2024-06-14 Alta 1.2083 SPEC (011 - S6 - T1 ).pdf

    끂56 264.85 KB

Product images

넳 넲

Features

² Good corrosion resistance

² Good wear resistance

² Good hardenability and dimensional stability

² Good machinability

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Contact

  • Huangshi Alta Special Steel Co.,Ltd
  • No.86 Road Hexi, Xisaishan Industrial park, Huangshi, China
  • +86 714 6318 297
  • sales@altaspecialsteel.com

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