DHW 75HS

GENERAL INFORMATION

Super austenitic stainless steel with a high content of molybdenum Mo and nitrogen N is used to work in oil and gas wells, with an aggressive environment and high concentrations of CO2, H2S and Chlorides, characterized by very high resistance to pitting and crevice corrosion in H2S containing acidic and excellent resistance to corrosion cracking under the action of chloride ion.

DWH 75HS is resistant to a wide range of chemical environments, including sulfuric acid, sour gas, seawater, salts and organic acids.

MAIN DELIVERY CONDITIONS

The wire is supplied seamless, without welded joints, on metal coils in protective packaging for safe transportation.
The wire is supplied in length, the maximum winding on the drum is 30’000 feet or 9’145 meters.

PHYSICAL PROPERTIES AT 20°С

Density

8.1 g/cm3

Melting range,

1320-1390 оС

Heat conductivity

12 W/(m·K)

TCLE, (from 20 оС to 100 оС)

0,15 mm/m/оС

Specific heat

415 J/kg·K

Modulus of Elasticity

16х10⁴ N/mm2

Magnetical inductive capacity

≥ 1,01µ

Classification

EN 10253-4

Chemical composition, %

C

Mn

Si

S

P

Cu

Cr

Mo

Ni

N

≤0.02

≤0.2

≤0.5

≤0.005

≤0.03

0.7-1.5

19.0-21.0

6.0-7.0

24.0-26.0

0.12-0.2

Mechanical properties at 20°С

Wire DHW 75HS it is made in two options with the standard yield strength and ultimate tensile strength

 

Yield Strength, MPa

Ultimate tensile strength, MPa

≥1440

≥1600

SIZES OF WIRE DHW 75HS

Diameter, mm Rupture load (min.), lbf
2.34 1550
2.74 2100
3.18 2700
3.56 3250
4.06 4250