Structural Items

Steel Sheet, Coil and Plate

Stainless Steel Grade: 304, 304/304L, 316, 316/316L, 2205

Carbon Steel Grade: A36

Thickness (mm): 0.45 to < 25.0

Width (mm): 914, 1219, 1500, 2000, Customer specific strip

Length (mm): 1829, 2438, Customer specific cut-to-length

Finish: 2B, No.4, BA, No.1 (HRAP), Customer specific Polish

Standard coating: Paper interleaf, PE

Optional coating: Laser, Deep drawing PVC

ASTM A240M - Chromium and chromium-nickel stainless steel plate, sheet and strip for pressure vessels and for general applications.
ASTM 480M - General requirements for flat rolled stainless and heat-resisting steel plate sheet and strip.

It is common practice for large stainless steel coils to be imported into Pakistan and processed by a specialty metals service centre into smaller coils, sheet, strip and plate. Product over 12 mm is imported into Pakistan as plate only. The range of stock of stainless steel flat products produced from large coil is limited to mill production constraints in thickness, width and grade and the processing equipment at the coil service centre.

Steel Bar & Wire

Stainless Steel Grades: 303, 304, 304L, 316, 316L, 321, 2205, 630, Improved Machining (303, 304, 316)

Carbon Steel Grades: A36, 4140

Type:

Round Bar: 3.0 to 304.8mm

Wire: 1.0 to 5.5mm

Angle Bar: 20 to 100 mm section; 3.0 mm to 12.0 mm thickness

Flat bar: 12 to 150 mm wide; 3 to 25 mm thickness

Channel Bar: 80 x 40 mm to 150 x 75 mm section; 5.0 to 6.0 mm thickness

Hexagonal Bar: 6.35 to 63.5mm A/F

Hollow Bar: 32 mm OD x 16 mm ID to 250 mm OD x 200 mm ID)

Condition: Hardened & tempered, annealed

Finishes: Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed

Processing: Bar cutting to 650 mm

Stainless steel bar comprises numerous products referred to by the shape, the section dimension, grade, condition and surface finish.

Stainless Steel & Carbon Steel Improved Machining Bar

Murtaza Corporation distributes brands of "Improved Machining" stainless steel bar. Improved machining bar is a result of a controlled melting process, giving high chip-breaking properties and providing a self-lubricating quality through the processing of machining.

The benefits of Improved Machining grade

* Improved machining

* Increased cutting speeds

* Lower unit cost of production

* Increased tool life

* Lower production power requirements

* Consistent machining characteristics

* Improved product surface finish

* Chemical composition within ASTM standards

* Properties the same as commercial grades of steel

- high corrosion resistance

- similar mechanical properties

- easily welded

- good formability

* Improved drilling and tapping characteristics

Improved Machining grade will reduce wear on tools and extend tool life. Highly abrasive inclusions which damage tools are excluded in the IM manufacturing steel melt process. There is a decrease in flank wear and crater wear of carbide tooling which results in:

- less dismounting and reassembling of tools;

- less adjustment time;

- there is a noticeable improvement in the life of cutting tools.

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