High toughness martensitic stainless steel and reciprocating pump manufactured therewith
A reciprocating pump is disclosed. The reciprocating pump may comprise a power end, and a fluid end operatively connected to the power end. The fluid end may include a plunger, a cylinder configured to operatively engage the plunger, and an end block. The plunger, the cylinder, and the end block of the fluid end may each be fabricated from a high toughness martensitic stainless steel composition comprising between 11.50% and 17.00% by weight chromium, between 3.50% and 6.00% by weight nickel, between 0.30% and 1.50% by weight molybdenum, between 0.01% and 0.20% by weight vanadium, and iron.
1. A reciprocating pump, comprising:
a power end having a motor, a crankshaft rotationally engaged with the motor, and a crank arm rotationally engaged with the crankshaft; and
a fluid end operatively connected to the power end and including a plunger, a cylinder configured to operatively engage the plunger, and an end block, the plunger, the cylinder, and the end block each being fabricated from a high toughness martensitic stainless steel composition comprising between 11.50% and 17.00% by weight chromium, between 3.50% and 6.00% by weight nickel, between 0.30% and 1.50% by weight molybdenum, between 0.01% and 0.20% by weight vanadium, and iron.
2. The reciprocating pump of claim 1 , wherein the high toughness martensitic stainless steel composition further comprises between 0.00% and 0.20% by weight niobium.
3. The reciprocating pump of claim 2 , wherein the high toughness martensitic stainless steel composition further comprises between 0.00% and 0.06% by weight carbon.
4. The reciprocating pump of claim 3 , wherein a ratio of niobium to carbon in the high toughness martensitic stainless steel composition is 6 or less.
5. The reciprocating pump of claim 4 , wherein the high toughness martensitic stainless steel composition further comprises:
between 0.00% and 1.50% by weight manganese;
between 0.00% and 0.040% by weight phosphorus,
between 0.00% and 0.030% by weight sulfur;
between 0.00% and 0.70% by weight silicon; and
between 0.000% and 0.060% by weight aluminum.
6. The reciprocating pump of claim 5 , wherein the high toughness martensitic stainless steel composition comprises between 12.00% and 14.00% by weight chromium, between 3.50% and 5.50% by weight nickel, between 0.50% and 1.00% by weight molybdenum, and between 0.01% and 0.15% by weight vanadium.
7. The reciprocating pump of claim 6 , wherein the high toughness martensitic stainless steel composition comprises between 0.00% and 0.15% by weight niobium.
8. The reciprocating pump of claim 7 , wherein the ratio of niobium to carbon in the high toughness martensitic stainless steel composition is 4 or less.
9. The reciprocating pump of claim 8 , wherein the high toughness martensitic stainless steel composition comprises:
between 0.50% to less than 1.00% by weight manganese;
between 0.00% to 0.030% by weight phosphorus;
between 0.00% to 0.60% by weight silicon; and
between 0.000% and 0.060% by weight aluminum.
10. An end block of a reciprocating pump, comprising:
a body;
a first bore extending through the body between an inlet port and an outlet port;
a cylinder bore extending through the body between a cylinder port and the first bore, the body of the end block being fabricated from a high toughness martensitic stainless steel composition comprising between 0.00% and 0.06% by weight carbon, between 11.50% and 17.00% by weight chromium, between 3.50% and 6.00% by weight nickel, between 0.30% and 1.50% by weight molybdenum, between 0.01% and 0.20% by weight vanadium, and iron.
11. The end block of claim 10 , wherein the high toughness martensitic stainless steel composition further comprises:
between 0.00% and 1.50% by weight manganese;
between 0.00% and 0.040% by weight phosphorus;
between 0.00% and 0.030% by weight sulfur;
between 0.00% and 0.70% by weight silicon; and
between 0.000% and 0.060% by weight aluminum.
12. The end block of claim 11 , wherein the high toughness martensitic stainless steel composition further comprises up to 0.20% by weight niobium.
13. The end block of claim 12 , wherein the high toughness martensitic stainless steel composition comprises between 12.00% and 14.00% by weight chromium, between 3.50% and 5.50% by weight nickel, between 0.50% and 1.00% by weight molybdenum, and between 0.01% and 0.15% by weight vanadium.
14. The end block of claim 13 , wherein the high toughness martensitic stainless steel composition comprises:
between 0.50% and 1.00% by weight manganese;
between 0.00% and 0.030% by weight phosphorus;
between 0.00% and 0.60% by weight silicon; and
between 0.000% and 0.060% by weight aluminum.
15. The end block of claim 14 , wherein the high toughness martensitic stainless steel comprises up to 0.15% by weight niobium.
16. A high toughness martensitic stainless steel composition, comprising:
between 0.00% and 0.06% by weight carbon;
between 0.00% and 1.50% by weight manganese;
between 0.00% and 0.040% by weight phosphorus;
between 0.00% and 0.030% by weight sulfur;
between 0.00% and 0.70% by weight silicon;
between 11.50% and 17.00% by weight chromium;
between 3.50% and 6.00% by weight nickel;
between 0.30% and 1.50% by weight molybdenum;
between 0.01% and 0.20% by weight vanadium;
between 0.000% and 0.060% by weight aluminum;
between 0.00% and 0.20% by weight niobium,
a ratio of niobium to carbon being 6 or less; and
iron.
17. The high toughness martensitic stainless steel composition of claim 16 , wherein the high toughness martensitic stainless steel composition comprises:
between 0.50% and 1.00% by weight manganese;
between 0.00% and 0.030% by weight phosphorous;
between 0.00% and 0.60% by weight silicon;
between 12.00% and 14.00% by weight chromium;
between 3.50% and 5.50% by weight nickel;
between 0.50% and 1.00% by weight molybdenum;
between 0.01% and 0.15% by weight vanadium; and
between 0.00% and 0.15% by weight niobium,
the ratio of niobium to carbon being 4 or less.