King Cross Steel

Product: King Cross
Kategori: Structural Steel
Standard: JIS, SNI

Availability
Size range : K 150 x 75 to K 800 x 300
Web Thickness Range : 5mm to 14mm
Flange Thickness Range : 7mm to 26mm
Length Standard : 12M

Note: non standard sizes are also available upon request and subject to minimum quantity.

Tabel Ukuran dan Berat Steel King Cross

Sectional Depth Width Web Flange Corner Sectional Area Unit Weight
H x B H B t1 t2 r
mm mm mm mm mm mm mm2 kg/m
150 x 75 150 75 5 7 8 35.7 28
198 x 99 198 99 4.5 7 11 46.36 36.4
200 x 100 200 100 5.5 8 11 54.32 42.6
248 x 124 248 124 5 8 12 65.36 51.4
250 x 125 250 125 6 9 12 75.32 59.2
298 x 149 298 149 5.5 8 13 81.6 64
300 x 150 300 150 6.5 9 13 93.56 73.4
346 x 174 346 174 6 9 14 105.36 82.8
350 x 175 350 175 7 11 14 126.28 99.2
396 x 199 396 199 7 11 16 144.32 113.2
400 x 200 400 200 8 13 16 168.24 132
450 x 200 450 200 9 14 18 193.52 152
500 x 200 500 200 10 16 20 228.4 179.2
588 x 300 588 300 12 20 28 385 302
600 x 200 600 200 11 17 22 268.8 212
700 x 300 700 300 13 24 28 471 369.7
800 x 300 800 300 14 26 28 534 419.8

NOTE :
– H = H/2 = Height of T-Beam
– Material specification refer to Wide Flange (IWF)
– Tolerance H= ±2mm
– Welded specification as per AWS E-6013
– Non standard sizes are available upon request and subject to minimum quantity

Related Structural Steel:

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Harga Plat SM490 YB

Harga Plat SM490 YB

Kategori: Welded Structural Steel Plates
Material: SM490
Standard: JIS G3106
Grades: SM490 YA, SM490 YB

Characteristic:
Steel grade SM490 is a low carbon, high strength for weld structural steel. Easy for weld and good cold forming properties.

Availability:
Thickness: 6 – 60 mm
Size: 5′ x 20′ , 1524 x 6096mm

Chemical Composition: (%)

C Si Mn P S
0.18 Max 0.55 Max 1.60 Max 0.035 Max 0.035 Max

Note: other alloy elements may be added as necessary (Ni, Cr and Cu)

Equivalent Steel Grade
S 355 JR, AE 355 B, E 36-2, Fe 510 B, SS21,32,01, IS 961, A633 Gr.A,C,D, 50 B

Mechanical Properties:
Yield Strength      t≦16    (Min Mpa) :  365
Yield Strength 16≦t≦25 (Min Mpa) :  325-355
Tensile Strength (Mpa)      :   490-610
Elongation t≦16          (Min %) :   15
Elongation 16≦t≦25 (Min %)  :  21

Application:
Machinery parts, mobile equipment, crane, boom, chassis, buildings, bridges and most structural activities.

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Jual Plat Corten Steel

Kategori: Corrosion Resistant / Weather Resistant Steel
Grades: Corten A,  Corten B
Standard: ASTM A 588

Characteristic

Corten steel (often referred to as Cor–Ten) is a weather resistant steel grade which could more accurately be termed as an “Atmospheric Corrosion Resistant Steel”. Weathering means that due to their chemical compositions COR-TEN A and COR-TEN B steels, when utilised unprotected, exhibits increased resistance to atmospheric corrosion compared to unalloyed steels. This is because it forms a protective layer on its surface under the influence of the weather.

Corten steel is a copper chromium alloy steel – this alloy displays a greater level of resistance to atmospheric weathering when compared to other unalloyed steels. It’s chemical composition promotes the early formation of an adhering protective layer of rust when exposed to the elements.

The corrosion retarding effect of the protective layer is produced by the nature of its structure components and the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and generates continuously when subjected to the influence of the weather.

Formation, duration of development and protective effect of the covering layer on weathering steels depend largely upon the corrosive character of the atmosphere. Its influence varies and depends mainly upon general weather condition (e.g. continental) macroclimate (e.g. industrial, urban, maritime or countryside climate) and the orientation of the structure components (e.g. exposed to or shaded from the weather, vertical or horizontal position). The amount of aggressive agents in the air has to be taken into account . In general the covering layer offers protection against atmospheric corrosion in industrial, urban and countryside climate.

Availability

COR-TEN A applies to plates up to 12.5mm in thickness,
COR-TEN B applies to plates up to 50mm in thickness.

Basic guidles for the use of this steel in the unprotected condition are described in EN 10025-5 and DASt rule 007.

The entire application technology is of fundamental importance for the performance of the products made from this steel. It must be taken into account that not only general climate conditions but also specific unfavourable local climate conditions in the broadcast sense as well as details of a construction may affect the corrosion behaviour of unprotected weathering steel. The dependency on these facts makes it understandable that no warranty can be given. It is recommended to control the corrosion progress of protected parts out of weathering steel exposed to the influence of weather in reasonable time intervals. A minimum thickness of 5mm is recommended when exposed to the weather in the unprotected condition.

To use the benefits of the higher atmospheric corrosion resistance of COR-TEN in comparison to unalloyed steel it is necessary that design and execution of structures as well as the performance of maintenance works allow an impeded formation and regeneration of the protective rust layer. The methods must meet the latest requirements of technical progress and must be suited for the proposed application. Due consideration must be given to relevant construction specifications.

Chemical Composition (heat analysis, %)

Grade C Si Mn P S Cr Cu V Ni
 COR-TEN A 0.12 0.25-0.75 0.20-0.50 0.07-0.15 0.030 0.50-1.25 0.25-0.55 0.65
 COR-TEN B 0.16 0.30-0.50 0.80-1.25 0.030 0.030 0.40-0.65 0.25-0.40 0.02-0.10 0.40

In order to obtain fine grain structure a sufficient amount of nitrogen absorbing elements is added (e.g. ≥0.02% Al).

Mechanical Properties

At room temperature for plates ≥3mm in thickness (transverse test specimans, according to EN 10002). Requirements to hot rolled plates ≤3mm in thickness according to EN 10025-5.

Grade Minimum yield point (ReH Mpa *) Tensile strengthRm MPa Minimum elongation A (Lo=5.65 √So) %
COR-TEN A 355 470-630 20
COR-TEN B ≤16 355 470-630 20
COR-TEN B > 16 ≤50 345 470-630 20

*) 1 Mpa = 1N/mm2

In case of cold rolled material the yield point is min. 310 Mpa and the tensile strength min. 445 MPa. Furthermore cold rolled sheets ≤3mm in thickness made of steel grade COR-TEN A-F for increased demand to the cold formability is available. Mechanical properties: Yield point min. 275 Mpa; Tensile strength min. 410 Mpa; elongation min. 25%. Tolerances on dimensions and shape according to EN 10131.

The notched-bar impact energy is determined on ISO-V longitudinal test specimans at a temperature of – 20°C as an average of three tests. For product thicknesses ≥10mm the average value is at least 27 J. For thicknesses between 10mm and 6mm, the minimum impact value is reduced proportionally to the speciman width (product thickness).

No impact test is performed on products below 6mm in thickness.

Number of Tests

1 tensile test

 1 test specimen per 40 t from eachheat*)

1 notched bar impact test  (3 specimens)

1 set specimens per 40 t from each heat *)

(at test temperature -20°C)

*) as referenced in EN  10025-5

Forming

The conditions for hot forming are in accordance with those stated in EN 10025-5. For cold forming the statements according to table 6 of EN 10025-5 are valid. If the mechanical properties have undergone changes due to cold forming, the properties indicated in the table can be substantially restores by stress relieving – at least 30 minutes at 530°C – 580°C. For higher degrees of cold forming subsequent normalising is recommended.

Flame Cutting

COR-TEN is suitable for flame cutting provided proper operating methods are used. At temperatures below 5°C a sufficiently wide zone on either side of the intended cut should be preheated. If flame cut edges are to undergo cold forming, the hardening effect should be prevented by preheating – as in the case of S355J2 or the hardened zones must be worked off e.g. by appropriate grinding.

Welding

COR-TEN can be welded both manually and mechanically, provided the general rules of welding practices are observed. A prerequisite for obtaining identical mechanical properties in the weld and in the base material is the application of suitable welding consumables and the choice of appropraite welding conditions. To consider are EN 10025-5 – Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

Recommendations
for welding are also given in EN 1011 part 1 and part 2 – Welding, Recommendations for welding of metallic materials-.

Lime basic electrodes, inert-gas welding wire, and wire/power combinations equivalent to the tensile strength of S355 are used as welding consumables

For unprotected use care must be taken that the welded joint is also weather resistant. This is possible by using welding consumables matching the base material.

If due to design or building specification stress relieving is required, it should be performed in the range temperature from about 530°C to 580°C.

Bolting and Riveting

Joining elements such as bolts, rivets and their accessories (nuts and washers) must be so selected that the formation of local electro-chemical cells are avoided. The joining elements should preferably consist of weathering steel.

At these joints capillary action can lead to permanent moisture resulting in increased corrosion. Critical zones should therefore be protected by painting, sealing or other protective measures.

In the case of high-strength connections (HV) the conditions for non-weathering structural steels as given in DIN 18800 part 1 apply.

Applications

The steel is used for various types of welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions.

Product Wear Plates:

Jual Plat Bisclad600, Bisclad650 & 700

Description
Bisclad is a chromium carbide clad mild steel plate offering outstanding wear life for areas subject to sliding abrasion wear.

Chemical Composition

Grade C
%
PCM
(IIW)
600 4.2 36
650 3.5 – 4.2 20 – 25
750 4.8 – 5.5 29 – 32

Fabrication

Bisclad can be rolled, bent, weld use low hydrogen 7018 electrode and cut with plasma arc. All cutting should be from the mild steel side, otherwise chromium and carbon will contaminate mild steel base and cause a brittle weld.

Bisclad can be supplied with the following means of attachment:

• Plug weld holes
• Stud welded studs to mild steel
• Countersunk holes

Mechanical Properties

Properties Grade Typical
Hardness 600
650
750
600 BHN (57 HRc)
650 HV
750 HV

Application

• Wear plates for draglines
• Shovel
• Hopper
• Skid Plates
• Chutes
• Deflector
• Slurry Pipes
• Dust Pipes

Product Carbon Steel:

Jual Quend 700

Description
Quend 700 is extra high strength structural steel produced as quenched and tempered with a minimum yield strength of 700 MPa. Quend 700 complies with the requirements corresponding to the S690QL given in the EN 10025-6 standard, where impact toughness is guaranteed at -40 °C.

Availability
Quend 700 is currently supplied in the following range:
• thickness: 8 – 25 mm
• width: 1500 – 3000 mm

Chemical Composition (%)

C Si Mn Cr Mo P Ni S B Nb V Ti Al N
 0.20 0.60 1.50 0.60 0.50 0.020 1.00 0.010 0.005 0.040 0.070 0.040 0.070 0.014

Mechanical Properties
Hardness (HBW) : 370 – 430
Charpy-V notch : 35 J
impact test (longitudinal at -40 °C)
Yield Strength (MPa): 700 Min
Tensile Strength (MPa): 780 – 930
Elongation (%): 14

Cutting
Quend 700 may be cut either by oxygen fuel, plasma and laser cutting without any restrictions

Welding
Welding of Quend 700 can be performed using any of the conventional welding methods available both as manual or automatic.

Application
Quend 700 is recommended for the following applications:
• truck chassis
• lifting and hoisting equipment
• handling equipment
• trailers

Related Carbon Steel:

Jual Quard Abrasion Resistant Steel

Description
Quard is a martesitic abrasion resistant steel, with an average hardness of 370 – 550 HBW. The steel offers very high resistance to abrasive wear and impact granting a longer service life. The combination of very good cold forming properties and excellent weldability makes Quard an optimal choice for most wear applications.

Range 
Quard 400 Viewmore »
Quard 450 Viewmore »
Quard 500 and 550 Viewmore »

Availability
Thickness: 8 – 20 mm
Width: 1500 – 2500 mm
Length: maximum 13 m

Welding
Welding Quard is easy and produces outstanding results.
Quard can be welded using any conventional welding method, both manually and automatically.
Due to the low carbon equivalents of Quard, preheating prior to welding is unnecessary in a thickness up to 20 mm.
On account of the tight thickness and flatness tolerances, Quard is well suited for automatic welding.
Quard can also be welded to any other weldable steel.

Bending

Quard has excellent cold forming properties, promoting new innovative solutions for lightweight design.

The excellent bending performance of Quard is achieved by:

  • low levels of non metallic inclusions
  • consistent mechanical properties
  • high crack resistance
  • tight thickness tolerances
  • excellent surface finish
  • consistent spring back
  • Numerous welding operations can be replaced by bending, resulting in a further reduction of production costs.

Cutting

Thermal or cold cutting methods can be used for Quard steel.
Thermal cutting, using either oxygen fuel, plasma or laser cutting is as easy as cutting mild steel.
Quard does not require preheating prior to thermal cutting.
Cold cutting methods, such as abrasive water jet cutting, shearing or sawing have the advantages of not thermally affecting the part being cut, thus avoiding the softening of small parts being produced.

Machining
Quard can be machined in the same way as for any martensitic wear plates of the same hardness.
For drilling, either HSS (8%Co) or indexable cemented carbide drills can be used.
Face milling and countersinking best takes place using tools with replaceable cemented carbide inserts.
For all machining operations performed on Quard, stable machines should be used in order to keep tool set-up vibrations to a minimum.

Application
Dumper bodies, crushers, impact hammers, buckets, feeders, conveyors, bulldozers, compactors, cutters in shredders, etc.

Product Wear Plates:

Jual Plat Quard 500 and Quard 550

Jual Plat Quard 500 and Quard 550

Description
Quard 500 and Quard 550 are intended for use in harsh applications where very high abrasion resistance is essential.
As these products will be produced in the same high standard of quality, like all other Quard wear plates, they will offer the same advantages such as superior surface quality, perfect flatness and tight thickness tolerances.

Availability
Thickness: 8 – 20 mm
Width: 1500 – 2500 mm
Length: maximum 13 m

Application
Dumper bodies, crushers, impact hammers, buckets, feeders, conveyors, bulldozers,  compactors, cutters in shredders, etc.

Product Wear Plates: