Originally Posted by walkerrosewood View Post
What have you used? What works what well and what completely failed? Side by side pics with actual Walnut would be excellent.
I don't substitute so failing is held to an absolute minimum....
a sub for walnut may be okay come molding/trim, furniture, cabinets and the like...
for a cutting board.. not so well unless it's ornamental and not functional....
Since you didn't specify which subspecies of walnut just tried for an average..
Alder is very soft and not like walnut in molecular structure at all...
Red Gum is often sap wood and porous..
Walnut and Maple are similar... where as Alder and gum are similar..
Neither group is like or similar to the other... Maple... Workability:
Fairly easy to work with both hand and machine tools, though slightly more difficult than Soft Maple due to Hard Maple’s higher density. Maple has a tendency to burn when being machined with high-speed cutters such as in a router. Turns, glues, and finishes well, though blotches can occur when staining, and a pre-conditioner, gel stain, or toner may be necessary to get an even color.
Average Dried Weight: 44 lbs/ft3 (705 kg/m3)
Specific Gravity (Basic, 12% MC): .56, .71
Janka Hardness: 1,450 lbf (6,450 N)
Modulus of Rupture: 15,800 lbf/in2 (109.0 MPa)
Elastic Modulus: 1,830,000 lbf/in2 (12.62 GPa)
Crushing Strength: 7,830 lbf/in2 (54.0 MPa)
Shrinkage: Radial: 4.8%, Tangential: 9.9%, Volumetric: 14.7%, T/R Ratio: 2.1 Walnut... Workability:
Typically easy to work provided the grain is straight and regular. Planer tearout can sometimes be a problem when surfacing pieces with irregular or figured grain. Glues, stains, and finishes well, (though walnut is rarely stained). Responds well to steam bending.
Average Dried Weight: 38 lbs/ft3 (610 kg/m3)
Specific Gravity (Basic, 12% MC): .51, .61
Janka Hardness: 1,010 lbf (4,490 N)
Modulus of Rupture: 14,600 lbf/in2 (100.7 MPa)
Elastic Modulus: 1,680,000 lbf/in2 (11.59 GPa)
Crushing Strength: 7,580 lbf/in2 (52.3 MPa)
Shrinkage: Radial: 5.5%, Tangential: 7.8%, Volumetric: 12.8%, T/R Ratio: 1.4 Alder... Workability:
Red Alder is very easy to work with both hand and machine tools; it sands especially easy. The wood is rather soft, however, and care must be taken to avoid denting it in some applications. Red Alder has excellent gluing, staining, and finishing properties; it also turns well and behaves similar to Black Cherry.
Average Dried Weight: 28 lbs/ft3 (450 kg/m3)
Specific Gravity (Basic, 12% MC): .37, .45
Janka Hardness: 590 lbf (2,620 N)
Modulus of Rupture: 9,800 lbf/in2 (67.6 MPa)
Elastic Modulus: 1,380,000 lbf/in2 (9.52 GPa)
Crushing Strength: 5,820 lbf/in2 (40.1 MPa)
Shrinkage: Radial: 4.4%, Tangential: 7.3%, Volumetric: 12.6%, T/R Ratio: 1.7 Red Gum... Workability:
Red Gum Generally easy to work, though planing can produce tearout due to interlocked grain. Sweetgum is known to warp and distort badly during initial drying. (After initial drying, distortion is significantly less, but the wood still experiences an appreciable amount of movement in service.) Turns, glues, stains, and finishes well. Responds moderately well to steam bending.
Average Dried Weight: 34 lbs/ft3 (545 kg/m3)
Specific Gravity (Basic, 12% MC): .46, .55
Janka Hardness: 850 lbf (3,780 N)
Modulus of Rupture: 12,500 lbf/in2 (86.2 MPa)
Elastic Modulus: 1,640,000 lbf/in2 (11.31 GPa)
Crushing Strength: 6,320 lbf/in2 (43.6 MPa)
Shrinkage: Radial: 5.3%, Tangential: 10.2%, Volumetric: 15.8%, T/R Ratio: 1.9