CONQUEST STEEL & ALLOYS

Girgaon, Mumbai, Maharashtra

Boiler & Pressure Vessel Steel Plates covers carbon steel plates intended primarily for service in welded pressure vessels where improved notch toughness is important. According to different strength levels, the plates are available in four grades: Grades 55, 60, 65, and 70. The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements. The steel shall be killed and shall conform to fine austenitic grain size requirements. The mechanical properties such as tensile strength, yield strength, and elongation shall be determined by a tension test for the plates.

It is primarily intended for use in welded pressure vessels where notch toughness is important.These grades cover a range of tensile strengths from 55 - 90 MPa and this versatility explains much of the specifications popularity. For plates thinner than 40mm normally supply as rolled. Plates above 40mm thick are normalised. For A 516 grade 70, which is one of most popular steels, the ASME standard composition is as follows (dependent on grade).

Weathering steel, best-known under the trademark CORTEN A steel and sometimes written without the hyphen as "CORTEN A steel", is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. United States Steel Corporation (USS) holds the registered trademark on the name CORTEN A. Although USS sold its discrete plate business to International Steel Group (now Arcelor-Mittal) in 2003, it still sells CORTEN A branded material in strip-mill plate and sheet forms. The original CORTEN A received the standard designation ASTM A 242 TYPE-1("COR-TEN A") from the ASTM International standards group. Newer ASTM grades are A 588 ("CORTEN A") and A 606 for thin sheet. All alloys are in common production and use. JIS G 3125:2004: Japanese grade for weather resistant steel plates: Superior atmospheric corrosion resisting rolled steels This Standard specifies the rolled steel having high atmospheric corrosion resistance, to be used for vehicle, building, steel tower and other structure. IRSM 41-97 Corrosion Resistance steel INDIAN grade for weather resistant steel plates: IRSM 41-97 standard of Indian railways specifically formed for wagon body due to it high resistance to corrosion, Major wagon builder being Rail Coach Factory.

APPLICATIONS: Chimneys, Bridges, Tubular bridges, Facades, Containers, Tanks, Corten Facades

Duplex steel plates A category of stainless steel with high amounts of chromium and moderate nickel content. The duplex class is so named because it is a mixture of austenitic (chromium-nickel stainless class) and ferritic (plain chromium stainless category) structures. This combination was originated to offer more strength than either of those stainless steels.

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.

High Tensile Steel Plates

A high strength structural steel supplied in quenched and tempered condition. The steel is designed to provide excellent welding and bending properties and it offers substantial possibilities for savings in material costs, processing and handing. Due to its high strength, it enables design of lighter, more durable and efficient products and structures.

Applications

- Machine building Lifting and mobile equipment - Vehicles and transport equipment - Steel constructions- Framework structures - Construction of bridges Containers - Pylons and other architectural structures

Abrasion Resistant Steel plates 400 BHN Hardness Plates

Wear Resitant Steel Pates is used in areas where there is likely to be a high degree of abrasion or wear of the steel plate. Steels with a high HB rating (Brinel Hardness) are intended for applications where wear or abrasion resistance is important. The benefit of using an abrasion resistant steel is that that the plant, machinery or constructions working life can be extended considerably. This can significantly improve the reliability, durability and safety of structures and equipment. It also helps to reduce the maintenance costs associated with wear and breakdown of plant. 400 HB steel is over 3 times harder than mild steel (120HB), but only a third as hard as stainless steel (1250HB). Abrasion & mechanical wear-resistant steel plates for quarries & construction machinery: gravel & stone conveying plants (routes, chutes, hoppers) & crushing plants. Shovels, diggers, graders, bulldozers, dumpers, dredging machines, crushers, grinders, screens, hoppers, mixers, moulds for concrete aggregates. Wear resistance plates for mining machinery. Extractors, unloaders, spiral chutes, crushers, grinders, screens, conveyors. Abrasion-resistant steel plates for Cement Plants & Refractory Product Plants: hoppers, crushers, chutes, cyclones, excavator bucket.

Hardness	HBW
	370 - 430
Mechanical Properties	Yield strength	Tensile strength	Elongation
Typical values for	Re	Rm	A5
20 mm plate thickness	MPa	MPa
	1000	1250	10 (transverse)
Impact Properties
Charpy V-notch	Test	Impact energy
Test according to EN 10045-1	temperature	Charpy-V,
Typical values for	C	J
20 mm plate thickness
	-40 (-40 F)	45 (longitudinal)
Delivery Condition	Quenched
Surface Conditions	Hardox 400 can be delivered in short blasted and primer coated surface conditions.
Dimension	Hardox 400 is supplied in thickness of 3 to 130mm
Surface Properties	According to EN10163-2
	- Requirements according to Class A.
	- Repair conditions according to Subclass 1.
Heat Treatment and Fabrication	Hardox 400 has obtained its mechanical properties by quenching and when necessary by means of subsequent tempering. The properties of the delivery condition can not be retained after exposure to service or preheating temperatures in excess of 250C (480 F). Hardox 400 is not intended for further heat treatment. Hardox 400 is not suited for pickling.

This specification covers chromium-molybdenum alloy steel plates for welded boilers and pressure vessels designed for elevated temperature service. Materials considered under this specification are available in grades 2, 12, 11, 22, 22L, 5, 9 and 91. The steel materials shall be killed and shall be thermally treated. The steel specimens shall undergo heat analysis and product analysis and shall conform to the chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, nickel, vanadium, columbium, boron, nitrogen, aluminum, titanium, and zirconium. The steel specimens shall also undergo tension tests and shall conform to the required values of tensile strength, yield strength, and elongation. This specification covers molybdenum alloy steel plates, intended particularly for welded boilers and other pressure vessels. Plates under this specification are available in three grades having different strength levels: Grade A; Grade B; and Grade C. The steel shall be killed. The steel shall conform to the chemical requirements specified. Tension tests on plates shall conform to the requirements specified.Plates under this specification are available in three grades having different strength levels as follows:

Grade Tensile Strength, ksi [MPa] A 6585 [450585] B 7090 [485620] C 7595 [515655]

This specification covers high-strength, low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction with atmospheric corrosion resistance. Heat analysis shall be performed wherein the low-alloy structural steel materials shall conform to the required chemical composition for carbon, manganese, phosphorous, sulfur, silicon, nickel, chromium, molybdenum, copper, vanadium, and columbium. Steel samples shall also undergo the tensile test and conform to required values of tensile strength, yield point, and elongation.

Grade

CORTEN A HSLA CORTEN A.

CORTEN B .,

ASTM 588 GR.A

JIS 3125 SPA-H

IRSM-41-97

SAILCOR

S355 J0WP,

S355 J0W

S355 J2W,