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Special Steels


304H || 316H || 317L || 321H || 347H || S31803 || S32750 || S32760 || S31254 || S32550 || 410 ||


We are your one-stop shop for special steels & modified steel grades.

With our special steels we support Customers engaged in several market fields, such as Energy, Aerospace, Oil & Gas, Chemical, Petrochemical, Water Treatment, Pulp & Paper, General Engineering,...

We supply BARS, SHEETS, PLATES, PIPING & TUBING, FASTENERS in various hard to find steels.


1.4948 || 1.4919 / 1.4401 || 1.4438 || 1.4878 || 1.4961 / 1.4550 || 1.4462 || 1.4410 || 1.4501 || 1.4547 || 1.4507 || 1.4006 ||



- stock  - fasteners stock   - production
    - sales@af-trading.it


317L || UNS S31703 - 1.4438, AISI 317L, X2CrNiMo18-15-4, Tp 317L, Type 317L

UNS S31703 - 1.4438,
AISI 317L, X2CrNiMo18-15-4, Tp 317L, Type 317L

This special steel with carbon high Molybdenum value guarantees an increased resistance to chemical attack, creep deformation characteristics and mechanical resistance to high temperatures.

Main fields of application:

Chemical, Pulp & Paper, Water Treatment, Energy, Petrochemical   


Our products in UNS S31703 - 1.4438, AISI 317L, X2CrNiMo18-15-4, Tp 317L, Type 317L are:

  • Bars
  • Fasteners

Main specifications / standards usually required on 317L : ASTM A182, ASTM A479, ASTM A276, ASME SA182, ASME SA479, ASME SA276,...


torna a: Acciai Speciali


317L barre tonde, 317L barre trafilate, 317L barre laminate, 317L barre forgiate, 317L barre esagonali, 317L bulloneria, 317L viteria, 317L bulloni, 317L viti, 317L dadi, 317L rondelle, 317L tiranti