Weighted iron set

1. A set of golf clubs comprising at least a first club head having a loft between about 15 and 25 degrees, a first club head mass, a y-axis extending vertically through a face center of the first club head and a first Moment of Inertia about the y-axis, a second club head having a loft of between about 26 and 35 degrees, a second club head mass, a second y-axis extending vertically through a face center of the second club head and a second Moment of Inertia about the second y-axis, and a third club head having a loft of about 36 degrees or greater, a third club head mass, a third y-axis extending vertically through a face center of the third club head and a third Moment of Inertia about the third y-axis,

the first club head comprising:

a first body made of steel comprising a first heel, a first toe, a first topline, a first sole, a first hosel, and a first back wall,

a first face insert made of steel and having a first face insert mass that is welded to the first body to form a first hollow cavity between the first face insert and the first back wall;

a first toe weight member formed of tungsten and coupled in a lower toe portion of the first hollow cavity that has a first toe weight member mass that comprises greater than 25% of the first club head mass; and

a first heel weight member formed of tungsten and coupled in a first hosel cavity of the first body such that a shaft axis intersects the first heel weight member below the first hosel, the first heel weight member comprising between 5% and 10% of the first club head mass;

wherein the first face insert mass is less than first toe weight member mass and a Moment of Inertia about the y-axis to blade length ratio is greater than about 3 kg-mm, and

wherein the first sole has a first sole width and the first face insert includes a first face insert sole portion that extends from a leading edge of the first face insert toward the first back wall a distance in front-to-back direction that is at least 25% of the first sole width.

2. The set of golf clubs of claim 1 , wherein the second club head comprises:

a second body made of steel comprising a second heel, a second toe, a second topline, a second sole, a second hosel, and a second back wall,

a second face insert made of steel and having a second face insert mass, the second face insert being welded to the body to form a second hollow cavity between the second face insert and the second back wall;

a second toe weight member formed of tungsten and coupled in a lower toe portion of the second hollow cavity that has a second toe weight member mass that comprises greater than 25% of the second club head mass; and

a second heel weight member formed of tungsten and coupled in a second hosel cavity of the second body such that a second shaft axis intersects the second heel weight member below the second hosel, the second heel weight member comprising between 8% and 15% of the second club head mass;

wherein the second face insert mass is less than second toe weight member mass and a second Moment of Inertia about the second y-axis to blade length ratio is greater than about 3 kg-mm.

3. The set of golf clubs of claim 2 , wherein the first face insert and the second face insert have Ultimate Tensile Strengths of greater than 2000 MPa.

4. The set of golf clubs of claim 3 , wherein the first face insert and the second face insert have thicknesses of 1.8 mm or less.

5. The set of golf clubs of claim 1 , wherein the first Moment of Inertia about the y-axis is less than both the second Moment of Inertia about the second y-axis and the third Moment of Inertia about the third y-axis.

6. The set of golf clubs of claim 1 , wherein the first club has a first Moment of Inertia about the shaft axis that is between 650 kg-mm 2 and 700 kg-mm 2 , the second club has a second Moment of Inertia about the shaft axis that is between 650 kg-mm 2 and 700 kg-mm 2 and the third club has a third Moment of Inertia about the shaft axis that is between 650 kg-mm 2 and 700 kg-mm 2 .

7. The set of golf clubs of claim 6 , wherein the first Moment of Inertia about the shaft axis is within 10% of the second Moment of Inertia about the shaft axis and the second Moment of Inertia about the shaft axis is within 10% of the third Moment of Inertia about the shaft axis.

8. The set of golf clubs of claim 1 , wherein the first club has a first Moment of Inertia about the shaft axis, the second club has a second Moment of Inertia about the shaft axis and the third club has a third Moment of Inertia about the shaft axis, wherein the first Moment of Inertia about the shaft axis is within 5% of the second Moment of Inertia about the shaft axis and the second Moment of Inertia about the shaft axis is within 5% of the third Moment of Inertia about the shaft axis.

9. The set of golf clubs of claim 1 , wherein the first iron has a first blade length and the first face insert sole portion extends from a heel-side front wall toward the toe a length in the heel-to-toe direction that is between 50% and 80% of the first blade length.

10. The set of golf clubs of claim 9 , wherein the first face insert has a thickness of 1.8 mm or less and has an Ultimate Tensile Strength of 2300 MPa or greater.

11. The set of golf clubs of claim 10 , wherein the first face insert has a Fatigue Strength of greater than 800 MPa.

12. The set of golf clubs of claim 1 , wherein the first heel weight member is arcuate and has an arc angle of 5 to 60 degrees.

13. The set of golf, clubs of claim 12 , wherein the first heel weight member has an arc radius of between 10 mm and 50 mm.

14. The set of golf clubs of claim 12 , wherein the first club has a first blade length and the first heel weight member has an arc radius that is less than ½ the first blade length.

15. The set of golf clubs of claim 1 , wherein the first heel weight member is arcuate and has an arc angle of 20 to 45 degrees.