Skip to content

PH 13-8 Mo Stainless Steel

1.4534 (PH 13-8 Mo)

  • EN1.4534
  • ENX3CrNiMoAl13-8-2
  • UNSS13800
  • TicariPH 13-8 Mo

Special precipitation-hardening stainless steel developed for aerospace. PH 13-8 Mo offers better corrosion resistance than 17-4 PH and 15-5 PH. Magnetic.

01Applications

  • Defense industry
  • Aerospace components
  • Nuclear industry
  • Petrochemical sector

02Delivery Condition

  • Max. 43 HRC

03Heat Treatment

Typical values

Solution treatment
925–940 °C, rapid cooling (air/oil)
Hardness, solution treated (A)
≈ 30–35 HRC
H900 / H950
482 / 510 °C, 1–4 h → maximum hardness
H1025 / H1075
552 / 580 °C, 4 h → strength + toughness
H1100 / H1150
593 / 621 °C, 4 h → maximum toughness and corrosion resistance
Dimensional change
≈ −0.05…−0.1 % on ageing

Heat treatment cycle (schematic)

02004006008001000Solution treat930°1. Solution treat — 930 °C2. Quench — 25 °CAge538°3. Age — 538 °C4. Cool — 25 °CTime (schematic, not to scale)°C
Stages and temperatures are typical values; soaking times depend on section size.

Ageing diagram (approximate)

203040506001002003004005006007000 °C → 33 HRC510 °C → 46 HRC538 °C → 43 HRC565 °C → 40 HRC593 °C → 36 HRC621 °C → 33 HRC650 °C → 30 HRC46 HRCAgeing temperature (°C)Hardness (HRC)
Approximate hardness versus ageing temperature after solution treatment (0 °C = solution-treated condition).

Values are approximate and for information only; they vary with section size, heat and furnace conditions. Binding values are determined from the manufacturer’s data under laboratory conditions.

Have a material requirement?

Send us your specification, drawing or RFQ. Our team will review the requirement and identify a suitable supply option.

Request a Quote