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:

Harga Plat Bisalloy 400

Harga Plat Bisalloy 400

Characteristic

Bisalloy400 is a through hardened, abrasion resistant steel plate , offering long life expectancy in high impact abrasion applications.

Chemical Composition (%)

Thickness C P Mn Si S Cr Mo B CE
(IIW)*
CET*
5 – < 16 Maximum 0.18 0.025 1.5 0.25 0.008 0.25 0.25 0.002 0.40 0.29
>= 16 – 80 Maximum 0.20 0.025 1.5 0.25 0.008 0.30 0.25 0.002 0.50 0.35
> 80 – 100 Maximum 0.18 0.025 1.5 0.25 0.008 1.20 0.25 0.002 0.58 0.34

Fabrication

Bisalloy400 is high hardness, abra sion resistant steel offering very good impact toughness properties.

Bisalloy400 provides an optimum combination of abrasion resistant, toughness and weldability. Due to its low alloy content, Bisalloy400 can be readily welded using conventional welding processes and low hydrogen consumables.

Cold forming of Bisalloy400 is achievable on all thicknesses although an allowance for the higher strength should be taken into account. Bending machine capabilities should also be taken into consideration prior to any forming operation. Heating above 250ºC should be avoided, otherwise mechanical properties may be affected.

Mechanical Properties

Properties Specification Typical
0,2% Proof Stress - 1070 MPa
Tensile Strength - 1320 MPa
Elongation in 50mm G.L - 14%
Charpy Impact (longitudinal) +20ºC (10mm x 10mm) - 55 J
Hardness 370 – 430 HB 400 HB

Application

Bisalloy400 offers excellent wear and abrasion resistant and impact toughness in applications which include:

• Dump Truck Wear Liners
• Screw Conveyors
• Chutes
• Storage Bins
• Earth Moving Buckets
• Cyclones
• Deflector Plates
• Ground Engaging Tools
• Cutting Edges

Product Wear Plates:

Harga Baja VCN

Steel VCN 150

Characteristics
It has high hardenability and is capable of giving good properties in large sections. It is relatively free from temper brittleness and retains useful machinability at relatively high hardness.

Equivalent VCN 150

Thyssen 6582, DIN 34NiCrMo6, ASSAB 705, JIS SMCM 431, AISI 4340

Availability
Round bar

Chemical Composition (%)

C Si Mn P S Ni Cr Mo
0.38–0.43 0.20–0.35 0.60–0.80 0.40 Max 0.040 Max 1.65–2.00 0.70–0.90 0.20-0.30

Mechanical Properties
Hardening Temp : 820 – 850 C
Ouenching Medium : Oil
Hardness as Supplied : 220 – 250 BHN,
Sizes Available : 20mm – 300mm

Applications
Automotive crankshafts and rear axle shafts, aircrafts crankshafts, Connecting Rods, Propeller Hubs, Gears, Drive shafts, Landing gear parts and heavy duty parts of rock drill

Related Machinery Steel:

Harga Baja VCL

VCL 140 Steel Roundbar

Characteristics

Very common Quenched & Tempered alloyed engineering steel grade With high intensity, high hardenability. It has a small distortion afer quenching, a ghigh creep strength and lasting intensity afer processing of high tempreature.

Equivalent VCL 140

Thyssen 7225, DIN 42CrMo4, ASSAB 709, VCL140, JIS SCM 440, AISI 4140

Availability

Round bar
Sizes: 10mm – 400mm
Supplied Condition: Quenched & Tempered
Features
It’s one kinds of high quality alloy structural steel.
Chemical composition: ( % )
C : 0.38-0.45,
Si: 0.15-0.40,
Mn: 0.60-0.90,
Cr: 0.90-1.20,
Mo: 0.15-0.30
S\P=0.035,
Ni\Cu=0.030
Mechanical Properties
Hardening Temp : 820 – 850 C
Ouenching Medium : Oil
Hardness as Supplied :
Application
It’s mainly used for making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the abckshaft, the conncetingrob and the pinchock under the high pressure. Parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.

Product Machinery Steel:

Harga AISI 1045 Steel

AISI 1045 Steel Roundbar

Characteristic
AISI 1045 Steel is a medium strength steel. Suitable for shafts studs, keys etc. Available as rolled or normalised. Supplied as square bar, or round bar or flat. They are excelling in weldability & machinability , and they can be subjected to various heat treatments. Based on JIS G 4051-2009
AISI 1045 Steel Standard and Grade: JIS S45C DIN1.1151 is typical for flame hardening, and can produce a surface hardness of 500 BHN to a depth of 0.10 in this applies particularly to shafts and gears

Availability
Round bar, Flat

Size

Round Bar: Φ 3.2 – 400mm

Flat: 10 – 90 mm & 205 – 305mm or

Mechanical Properties
* Density (kg/m3) 7700-8030
* Young’s Modulus (GPa) 190-210
* Tensile Strength (Mpa) 569 (Standard) 686 (Quenching, Tempering)
* Yield Strength (Mpa) 343 (Standard) 490 (Quenching, Tempering)
* Poisson’s ratio 0.27-0.30

Hardness
Brinell Hardness (HB) 160-220 (Annealed)

Equivalents
DIN Equivalents for JIS S45C
C45, CK45, CF45, CQ45

ASTM Equivalents for JIS S45C
ASTM A29 , ASTM A510 , ASTM A519 , ASTM A576 , ASTM A682

SAE Equivalents for JIS S45C
SAE J403 , SAE J412 , SAE J414

AISI Equivalents for JIS S45C
AISI 1045, AISI 1046

EN Equivalents for JIS S45C
EN-8 / BS 970 080M40,Thyssen 1191, ASSAB 760

Chemical Composition

C Si Mn P S
0.42–0.48 0.15–0.35 0.6–0.9 0.030 Max 0.035 Max

Heat Treatment
The following temperature ranges are applicable for the respective heat treatment operations.
Full Annealing 800 – 850°C
Normalising 840 – 880°C
Hardening 820 – 860°C
Quenching medium Water or Oil
Tempering 550 – 660°C

Melting Point
Melting point: 1520 Degree Celsius

Applications

Standard punch head, special punch head and thread rolling tool requiring high precision, long service and abrasion resistance. Various machining tools, e. G. Lathe bit, milling cutter, drill bit, screw tap, round saw and other metal machining tools and wood machining tools. Also suitable for manufacture of forming tools, e. G. Cold extrusion head, extrusion die, punch dies of long service life, and plastic molds of high precision and long service life.

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Related Machinery Steel:

Jual AISI 4140 Steel Round Bar

Product : Steel AISI 4140
Kategori: Machinery Steel
Grades : Quenched & Tempered Alloyed Engineering Steel

Characteristics
AISI 4140 is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties
Very common Quenched & Tempered alloyed engineering steel grade With high intensity, high hardenability. It has a small distortion afer quenching, a high creep strength and lasting intensity afer processing of high tempreature.

Equivalent
Thyssen 7225, DIN 42CrMo4, ASSAB 709, VCL140, JIS SCM 440

Availability
Round bar
Sizes: 10mm – 400mm

Chemical composition: ( % )

C Si Mn Cr Mo S\P Ni\Cu
0.38-0.45 0.15-0.40 0.60-0.90 0.90-1.20 0.15-0.30 0.035 0.03

Features
AISI 4140 is supplied in the hardened and tempered condition. The level of hardness is selected to give useful strength while still maintaining the ability to machine the material into finished components.
AISI 4140 can be re-heat-treated to higher strength or tempered back to lower strength levels than those supplied as standard. Assistance with heat treatment should be sought from reputable heat treatment companies.

Mechanical Properties
Hardening Temp : 820 – 850 C
Ouenching Medium : Oil
Hardness as Supplied :
Supplied Condition: Quenched & Tempered

Application
It’s mainly used for making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the abckshaft, the conncetingrob and the pinchock under the high pressure. Parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.

Product Machinery Steel:


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