" type="text/css" />
Friday 23 October 2020
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet
  • 17-7 PH Stainless Steel Data Sheet

 

Alloy

UNS Number

SAE Number

17-7 PH

UNS S17700

 

 

GENERAL PROPERTIES

Type 17-7 PH Precipitation-Hardening Stainless Steel in sheet and strip forms provide valuable property combinations particularly well suited for aerospace applications. This special alloy also provides benefits for other applications requiring high strength and good corrosion resistance, as well as excellent properties for flat springs up to 316°C (600°F). 17-7PH provides high strength and hardness, excellent fatigue properties, good corrosion resistance and minimum distortion on heat treatment.

RESISTANCE TO CORROSION

Corrosion resistance of Type 17-7PH stainless steel in all heat-treated conditions, like other types of stainless steels – will develop superficial rust in some environments. However, after exposure of one or two years, the amount of rust present is little more than that present at six months. It may be subject to cracking when exposed under stress in environments containing hydrogen sulphide.

PHYSICAL PROPERTIES

Melting Point

Density

Modulus of Elasticity
in Tension

 1404 - 1440 ℃

  7.8g/cm3

204 GPa

MECHANICAL PROPERTIES

Alloy

Tensile Strength
Minimum
(psi)

Yield Strength
Minimum 0.2% offset

(psi)

% Elongation
in 2" Minimum

       

17-7 PH

130,000

40,000

35

 

CHEMICAL PROPERTIES

Alloy

C

Si

Mn

P

Cr

Ni

S

Al

Fe

17-7 PH

0.09

1.0

1.0

0.04

16.0-18.0

6.5-7.75

0.03

0.75-1.5

Bal

 

WELDING

Common arc and resistance methods can be used with stainless steel grade 17-7 PH. It is recommended that during fusion welding inert gas shielding should be performed to reduce the oxidation of aluminium during the process.

HEAT TREATMENT

For heat treating stainless steel grade 17-7 PH, three important steps need to be carried out - austenite conditioning, cooling to transform the austenite to martensite, and precipitation hardening to condition TH 1050 or RH 950.

Contact Us

 

contact phoneT: + 44 (0)1902 409316
Fusion House
The Crescent
Willenhall
West Midlands
WV13 2QR

F: + 44 (0)1902 409304
E: sales@quest4alloys.com