US 2025/0154634 A1 · STAINLESS STEEL FORMULATION FOR PUMP COMPONENTS

Abstract

A stainless steel formulation and fabrication of various hydraulic fracturing pump components using the stainless steel formulation is disclosed. The stainless steel formulation provides for a relatively high martensitic grain structure, which provides for high strength and durability, high wear tolerance, high chemical tolerance, and high hardness. Thus, pumps and/or pump components fabricated with the stainless steel formulation may have greater lifetimes than pumps and/or pump components fabricated from conventional materials. The stainless steel formulation also includes relatively wide ranges and tolerances of constituent elements. The wide tolerances enable and/or ease the use of scrap metals in formulating the stainless steel formulation, which provides for cost and environmental benefits. Pump components, such as a fluid end assembly, may be fabricated using the stainless steel formulation to realize usable lifetime, cost, and/or environmental advantages.

Claims20

Dependent claims

A stainless steel formulation, comprising:

a nickel (Ni) content in a range of about 3.5% to about 4.5% by weight;
a chromium (Cr) content in a range of about 12% to about 13.5% by weight;
a manganese (Mn) content in a range of about 0.5% to about 1.5% by weight;
a molybdenum (Mo) content up to about 0.7%;
a copper (Cu) content up to about 0.5% by weight;
a titanium (Ti) content in a range of about 0.005% to about 0.05% by weight;
a cobalt (Co) content in a range of about 0.04% to about 0.2% by weight;
and
a vanadium (V) content in a range of about 0.03% to about 0.2% by weight.

6 more elements

Dependencies are inferred from the claim text.

Stainless steel formulation for pump components

Life of this patent

Stainless steel formulation for pump components

Life of this patent

Abstract

Claims20