Steel card

1.4542/630

VALBRUNA GRADE

V174

STEEL TYPE

Precipitation Hardening

Profile shapes
  • Round EN 10060 / EN 10278
  • Flat EN 10058 / EN 10278
  • Square EN 10059 / EN 10278
  • Hexagonal EN 10278
  • Angle EN 10056
  • Bar steel, bright steel, wire, wire rod, billets, ingots, semi-finished products
Description of material

It is a martensitic precipitation hardening stainless steel with high strength and hardness. The mechanical properties are obtained by a solution treatment (Cond. A) that brings the Cu in solution in the Austenitic matrix followed by a rapid cooling obtaining a super-saturated Cu martensitic structure. A re-heating ( ageing ) at t° = 480°C gives a maximum Hardness and resistance Rm, with low Kv impact, due to a precipitation of Cu –rich phase. Ageing at t°= 620°C results in a higher Kv impact, with a reduction of Rp0,2 and Rm, due to a progressive softening of Martensite and the formation of both Cu-globules with loss of coherence within the matrix, and stable Austenite. It is important to know that the transformation of Austenite to Martensite is completed below 30°C and the formation of stable Austenite during aging can start to appear at 550°. This strongly depends on the (Cr/Ni) equivalent balance that, besides, influences the amount of Ferrite in the matrix.

Applications

It can be used in different kind of application as valves, chemical and power productions components, engine parts, fitting, fasteners, shafts and pumps shafts and parts of oil & gas plants.

Designations
RCCM-M MATERIAL REF.X6CrNiCu17-04
AISI630
W.N.1.4542
UNSS17400
ENX5CrNiCuNb16-4
Chemical composition
Chemical elementCMnSiSPNiCrMoCuTa+NbNb
Minimum value %-----3%15%-3%0,15%5*C
Maximum value %0,07%1%0,7%0,03%0,04%5%17%0,5%5%0,45%0,45%
Mechanical properties
ConditionSubtypeRm [N/mm²]Rm [Ksi]HBWRp0,2% [N/mm²]Rp0,2% [Ksi]E4d [%]
Solution AnnealedAT1200 max174 max360 max---
Solution Annealed-AgedH9001310 min190 min388 min1170 min170 min10 min
Solution Annealed-AgedH9251170 min170 min375 min1070 min155 min10 min
Solution Annealed-AgedH1025 (P1070)1070 min155 min331 min1000 min145 min12 min
Solution Annealed-AgedH10751000 min145 min311 min860 min125 min13 min
Solution Annealed-AgedH1100 (P960)965 min140 min302 min795 min115 min14 min
Solution Annealed-AgedH1150 (P930)930 min135 min277 min725 min105 min16 min
Solution Annealed-Double AgedH1150M (P800)795 min115 min255 min520 min75 min18 min
Solution Annealed-Double AgedH1150D860 min125 min255 - 311725 min105 min16 min
You can request the complete data sheet at the following email address:
[email protected]
Language
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