Metal finishes for interior hardware

Metal finishes for interior hardware

 

Any shape, size and cost!

Have you ever seen or touched beautiful pieces of hardware?  Have you ever wondered what the best metal for your hardware is?  Have you ever read something with a code that you have no idea what it means? Well, here are a few fun facts for you knowledge library.

  • The material often affects the ability of the product to maintain appearance and durability and can have an important bearing on your selection.
  • Selection of the base metal and finish depend on such factors as “use”, such as:
    1. Exposure to elements
    2. Desired appearance
    3. Hardware in a room should harmonize in design and finish with the entire building
    4. Cost
  • In discussing metals and finishes, we differentiate between:
    1. Metal material out of which the basic portions of the hardware item are manufactured;
    2. The surface characteristics of the product.
      1. This latter may simply be the result of treatment of the basic metal, or it may be applied by the addition of a second metal or other product.
    3. Basic Metals:
      1. Brass, bronze, iron, steel, stainless steel, aluminum and zinc.
      2. Metals may be cast, extruded, forged or wrought
        1.     Here are the definitions straight from the dictionary … yes, some people still use the dictionary:

 “Pouring molten alloy into pre-molded forms produces cast metal.” This method results in a versatile shape that can be machined, etched or carved to yield a great variety of designs. Forcing or drawing semi-molten metal through dies, like a chef uses a pastry bag, produces extruded shapes.. “Forged metal is hammered, pressed or rolled into shape.” A smooth, dense product results from this process, the value of which relates to the thickness of the metal. “Wrought metal is rolled into flat sheets or strips.” The products are formed by punching or die cutting into the desired forms.

      1. Stainless steel is an iron product and there are about 40 standard types.  Below is a listing of all of the type
        1. Because it is highly rust resistant, easily maintained  and comes in so many finishes  this metal is one of the most common.
  1. Finishes:
    1. Finishes that are natural take, the color of the base metal in the product, and may be either high or low luster.
      1. A so-called satin finish is one of low luster.
      2. Finishes for hardware have undergone great changes in recent years. New techniques and finishes have been introduced, changes in popularity have taken place, and some finishes have been dropped.
      3. The preparation given to base metals prior to finishing consists generally of machining, buffing and polishing. Buffing or polishing the metal to a high gloss before applying a synthetic coating produces polished brass and bronze finishes.
    2. Finish Standards
      1. Builders Hardware Manufacturers Association, from whom ANSI/BHMA samples of selected standard finishes now may be obtained. Standard Al56.18 gives details of the equivalents
 

Nearest U.S.

Canadian Equivalent

BHMA Code

Finish Description

Base Metal

USP

CP

600

Primed for painting

Steel

US1B

C1B

601

Bright Japanned

Steel

US2G

C2G

603

Zinc Plated

Steel

US3

C3

605

Bright brass, clear coated

Brass*

US4

C4

606

Satin brass, clear coated

Brass*

US9

C9

611

Bright bronze, clear coated

Bronze*

US10

C10

612

satin bronze, clear coated

Bronze*

US10B

C10B

613

Oxidized satin bronze, oil rubbed

Bronze*

US14

C14

618

Bright nickel plated, clear coated

Brass, Bronze*

US15

C15

619

Satin nickel plated, clear coated

Brass, Bronze*

US19

C19

622

Flat black coated

Brass, Bronze

US20A

C20A

624

Dark oxidized, statuary bronze, clear coated

Bronze*

US26

C26

625

Bright chromium plated

Brass, Bronze*

US26D

C26D

626

Satin chromium plated

Brass, Bronze*

US27

C27

627

Satin aluminum, clear coated

Aluminum

US28

C28

628

Satin aluminum, clear anodized

Aluminum

US32

C32

629

Bright stainless steel

Stainless steel, 300 series

US32D

C32D

630

Satin stainless steel

Stainless steel, 300 series

 
* Also applicable to other base metals under a different BHMA code number.

 

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