385 Brass

Overview

385 Brass is a free-machining brass that was developed with maximised output rates and long tooling life in mind.

The exceptional machining characteristics of this material mean that a good surface finish is easily achievable on any finished component. The processes used to manufacture 385 Brass are strictly controlled to ensure that the material is uniform and within specification.

Dimensional Tolerance

Round
Size Range Tolerance (mm) Tolerance (inch)
up to 5/16 0.08 0.003
1″ to 1-3/8″ 0.10 0.004
1-1/2″ to 1-3/4″ 0.13 0.005
2″ to 2-3/4″ 0.15 0.006
3″ + 0.30 0.012
Hex
Size Range Tolerance (mm) Tolerance (inch)
up to 7/8 0.00/0.13 0.000/0.005
15/16″ to 1-1/4″ 0.00/0.20 0.000/0.008
1-3/8″ to 1-1/2″ 0.00/0.30 0.000/0.012
1-3/4″ 0.00/0.38 0.000/0.014

Chemical Composition

Element Symbol Range (%) Nominal (%)
Copper Cu 56.0-60.0 58
Lead Pb 2.5-4.5 3.5
Zinc Zn Balance Balance

Kormax Size Range

Kormax can also cut any size or shape to length at no extra cost

Round Bar
Round Bar (Diameter) KG/Mtr
1/8″ 0.07
3/16″ 0.15
5mm 0.17
1/4″ 0.27
5/16″ 0.42
3/8″ 0.60
10mm 0.67
7/16″ 0.82
12mm 0.96
1/2″ 1.07
9/16″ 1.36
5/8″ 1.68
11/16″ 2.03
3/4″ 2.41
13/16″ 2.83
7/8″ 3.29
15/16″ 3.77
1″ 4.29
1-1/8″ 5.43
1-3/16″ 6.05
1-1/4″ 6.71
1-3/8″ 8.11
1-1/2″ 9.66
1-5/8″ 11.33
1-3/4″ 13.17
2″ 17.17
2-1/4″ 21.73
2-1/2″ 26.85
3″ 38.66
3-1/2″ 52.62
4″ 68.72
6″ 159.53
Hex Bar
Hex Bar (A/F) KG/Mtr
5/16″ 0.46
3/8″ 0.67
7/16″ 0.91
1/2″ 1.18
5/8″ 1.85
3/4″ 2.66
7/8″ 3.62
1″ 4.73
1-1/8″ 5.99
1-1/4″ 7.42
1-3/8″ 8.95
1-1/2″ 10.65
1-3/4″ 14.52
2″ 18.93
2-1/2″ 10.65
Square Bar
Square Bar (A/F) KG/Mtr
1/4″ 0.34
5/16″ 0.53
3/8″ 0.77
1/2″ 1.37
5/8″ 2.13
3/4″ 3.07
1″ 5.46
1-1/4″ 8.54
1-1/2″ 12.29
2″ 21.86
Flat Bar
Flat Bar (T x W) KG/Mtr
1/8″ x 1/2″ 0.34
1/8″ x 3/4″ 0.51
1/8″ x 1″ 0.68
1/8″ x 1-1/4″ 0.85
1/8″ x 1-1/2″ 1.02
1/8″ x 2″ 1.37
1/8″ x 4″ 2.73
3/16″ x 1/2″ 0.51
3/16″ x 3/4″ 0.77
3/16″ x 1″ 1.02
3/16″ x 1-1/4″ 1.28
3/16″ x 1-1/2″ 1.54
3/16″ x 2″ 2.05
1/4″ x 1/2″ 0.68
1/4″ x 3/4″ 1.02
1/4″ x 1″ 1.36
1/4″ x 1-1/4″ 1.70
1/4″ x 1-1/2″ 2.04
1/4″ x 2″ 2.72
1/4″ x 2-1/2″ 3.40
1/4″ x 3″ 4.09
1/4″ x 4″ 5.45
1/4″ x 6″ 8.18
3/8″ x 3/4″ 1.54
3/8″ x 1″ 2.05
3/8″ x 1-1/2″ 3.07
3/8″ x 2″ 4.10
3/8″ x 3″ 6.15
3/8″ x 6″ 12.30
1/2″ x 1″ 2.73
1/2″ x 1-1/2″ 4.10
1/2″ x 2″ 5.46
1/2″ x 2-1/2″ 6.83
1/2″ x 3″ 8.19
1/2″ x 4″ 10.92
1/2″ x 6″ 16.38
5/8″ x 1-1/4″ 4.27
5/8″ x 2″ 6.83
3/4″ x 3″ 12.30
1″ x 3″ 16.38
1″ x 4″ 21.84
Half Round
Half Round (T x W) KG/Mtr
3/16″ x 1/2″ 0.34
3/16″ x 1″ 0.75
3/16″ x 1-1/4″ 0.90
1/4″ x 1-1/4″ 1.18
5/16″ x 2″ 2.40
Angle Bar
Angle Bar (T x W x W) KG/Mtr
1/16″ x 1/2″ x 1/2″ 0.32
1/16″ x 1″ x 1″ 0.65
1/8″ X 3/4″ X 3/4″ 0.94
1/8″ X 1″ X 1″ 1.28
1/8″ X 1-1/4″ X 1-1/4″ 1.63
1/8″ X 1-1/2″ X 1-1/2″ 1.97
1/4″ X 2″ X 2″ 5.12
Tube
Tube (OD x WT) KG/Mtr
1″ x 1/16″ 1.04
1-1/8″ x 1/16″ 1.18
1-1/4″ x 1/16″ 1.31
1-1/2″ x 1/16″ 1.59
2″ x 1/16″ 2.42

Use the Product Finder for product recommendations, based on the dimension of your finished size.


Submit Enquiry