Designing of Steel Type

Designation was hitherto governed by DIN 17006. These norms have been outdated. Until corresponding ISO norms have been fixed, however, sybols for materials will continue to be based on the system specified in DIN 17006.

A complete characterization consists of three parts, specifying method of production, composition and treatment.

Method of production is specified by alphabets alone. These tell us about the method of smelting, as well as about properties resulting from the method in question.

Composition is specified by alphabets and numbers. These tell us about working, characteristics, tensile strength, chemical composition and/or quality class.

Treatment is specified by alphabets and numbers. These tell us about reforming, stats of heat treatment and extent of guarantees.

Materials can be briefly and accurately designated by steel standard symbols

Alloying Element Limiting content in percentage by Weight

Aluminum, Al	0.10
Chromium, Cr	0.30
Cobalt, Co	0.10
Manganese, Mn	0.80
Nickel, Ni	0.30
Silicon, Si	0.50
Titanium, Ti	0.05
Tungsten, W	0.10
Vanadium, V	0.10

Standardisation of Metallic Materials

Classification of Steels:
In the Euronorm, stells are classified according to their chemical composition and their characteristics as working materials.

Classification as per alloying components:
Unalloyed steels: The content of various alloying components specified in the table should be less than the limits specified.

Alloyed Steels. The percentage content of at least one of the elements specified in the table should be equal to or greater than the limit specified.

Classification according to working characteristics
Basic Steels are steels of low purity and uniformity of grain structure. They are unalloyed and not intended for heat treatment (quenching and tempering/surface hardenning).

High grade Steels are purer and of better surface quality than basic steels. They may be alloyed or unalloyed. Unalloyed high grade steels are ordinary structural steels which can be folded and cold formed, steel rods and rod wires which can be drawn and sheets which can be deep drawn. Alloyed high grade steels are fine grain structural steels with high elastic limits. They are used as free cutting steels for sheets, strips, springs and parts subjects to wear.

Superrefined Steels are very low in non-metallic inclusions. Unalloyed superrefined steels are suited to heat treatment. Alloyed superrefined steels are fine grain structural steels with a guaranteed elastic limit of at least 420 N/mm². They are used as structural steels, tool steels and steels with tailor made characteristics.

Price of Stainless Steel Product

To price for stainless product is based or considered by the stainless steel material use, the cost of construction and the difficulties of product build. The difficulties of product to build usually base to the time needed to finish the product. Other factors considerations are accessories use and finishing difficulties to complete the production. Tailor made product usually more expensive that mass production.

Here are some price of product usually to fabricate:

1. Canopy from Stainless Steel: Price from Rp. 395.000 per m2 to Rp. 600.000 per m2.
2. Stainless Steel Door Fence: Price from Rp. 650.000 per m2 to Rp. 1.200.000 per m2.
3. Stainless Steel Fence: Price from Rp. 350.000 per m2 to Rp. 850.000 per m2.
4. Stainless Steel Ladder: Price depend on the design and volume of materials.
5. Stainless Steel Table and Chair: Price depend on the design and volume of materials.
6. Stainless Steel kitchenware: Price depend on the design and volume of materials.
7. Stainless Steel Trash can: Price from Rp. 375.000 per m2 to Rp. 950.000 per m2.
8. Stainless Steel Signage or Letter: Price come from Rp. 17.000 per cm2.

Designating Steel

Classification of Steels:
In the Euronorm, steels are classified according to their chemical composition and their characteristics as working materials.

Classification as per alloying components:
Unalloyed steels.
The content of various alloying components specified in the table should be less than the limits specified.

Alloyed Steels.
The percentage content of at least one of the elements specified, should be equal to or greater than the limit specified.

Classification according to working characteristics:
Basic steels are steel of low purity and uniformity of grain structure. They are unalloyed and not intended for heat treatment (quenching and tempering/surface hardenning).

High grade steels are purer and of better surface quality than basic steels. They may be alloyed or unalloyed. Unalloyed high-grade steels are ordinary structural steels which can be folded and cold formed, steel rods and rod wires which can be drawn and sheets which can be deep-drawn. Alloyed high-grade steels are fine-grain structural steels with high elastic limits. They are used as free cutting steels for sheets, strips, spring and parts subject to wear.

Superrefined Steels are very low in non metallic inclusions. Unalloyed superrefined steels are suited to heat treatment. Alloyed  superrefined steels are fine grain structural steel with a guaranteed elastic limit of at least 420 N/mm2. They are used as structural steels, tool steels and steels with tailor made characteristics.

Designation of steel types
Designation was hitherto government by DIN 17006. These norms have been outdated. Untill corresponding ISO norms have been fixed, however, symbols for materials will continue to be based on the system specified in DIN 17006.

A complete characterisation consist of three parts specifying method of production, composition and treatment.