steel MIll supplY eXperts

www.Api-engineering.com Steel mills around the world run smoothly thanks to the tooling, on i capital equipment and technical expertise which API Engineering provides. Our cost effective solutions increase your efficiency Introduct and productivity without compromising on quality.

We cater to a wide range of product types including long and flat products as well as hot and cold rolling mills and

seamless tube mills. Capabilities Overview Our focus is on improving your

reliability and efficiency whilst delivering We have the capability to supply cost benefits. This is achieved through a range of tooling and capital equipment which is backed up by our application our continuous improvement philosophy engineering and design services.

coupled with decades of experience. Supply The tooling supplied for long products and centrifugal casting includes mandrel Our quality management system is bars and pipe moulds. These are produced from integral forgings using ISO 9001:2008 certified. specialist steels and are finished to tight tolerances.

Rolls are supplied to a range of steel mill types, from large depth-hardened piercer rolls through to stretch reducing and backup rolls. Capital equipment available includes cooling beds, rolling mill stands and continuous casting machines. This custom-built specialist equipment is designed to cater to the individual needs of each steel mill.

Technical Services Technical services include CAD designs, FEA, in-depth failure analysis, application engineering and reverse engineering of replacements for obsolete products. We work closely with our customers to assess their needs and ensure the most appropriate solution is offered. Introduction industry. engineering heavy the in customers our for projects managing and runs manufacturing volume high delivering to solutions one-off bespoke designing from everything in experience extensive have engineers skilled Our ABOUT customers’ requests. customers’ and standards international with line in are requirements process and specifications material that ensure to and queries design any to respond to hand at always therefore are engineers Our suppliers. and customers between relationships working close as well as times lead flexible and prices competitive for need the Weunderstand customers. our to shipped being before tested and inspected fully and standards international latest the to manufactured are products our of All Shanghai. also and Henan Hebei, of Provinces Chinese the in located staff qualified permanent, and offices subsidiary owned fully have API castings. and forgings large very to components steel pressed from range and sectors Automotive and Generation Power Handling, Material Mill, Steel the in are activities main Our industry. engineering heavy the in customers our for projects managing and runs manufacturing volume high delivering to solutions one-off bespoke of design the from everything in experience extensive have engineers skilled Our decades. two for base customer global a to equipment and components cost low quality, high of range diverse a delivering been have and UK the in Webased are

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PRODUCTS Long Product Operations

Billets and Blooms Mandrel Bars

Steel Billets and Blooms are produced by Mandrel Bars are one of the key pieces Chemical Composition continuous casting through ceramic tubes and of tooling required during the production water-cooled copper moulds before being rolled of Seamless Tubes and Pipes. Once the For the production of mandrel bars the material most commonly requested is AISI to smaller cross-sectional areas. API Engineering billet has been pierced, the Mandrel Bar H13. Since we control the material production process almost any desirable chemical supply a range of equipment used in the continuous supports the tube shell internally during composition can be accommodated. The specification for AISI H13 is: casting and rolling process. elongation and wall thickness reduction. C Si MN S P CR MO MI V H O Equipment we supply includes: Over the last two decades API AISI H13 0.32 0.80 0.20 < < 4.75 1.10 < 0.80 < < Engineering has supplied thousands (4Cr5MoSiV1) Ladles of mandrel bars to steel mills across 0.45 1.20 0.50 0.008 0.012 5.50 1.75 0.25 1.20 2PPm 20PPm Ingot Casting moulds the world, built great partnerships and Continuous Casting Tundish - and associated developed a reputation as a trustworthy, Tensile Yield Elongation Reduction Impact Hardness spare parts including gates and nozzles high quality supplier. Strength Strength (%) of Area Value (J) (HRC) SIZE Continuous Casting Rolls (Mpa) (Mpa) (%) Typical base materials include S355J2+N, Our Mandrel Bar capabilities include, <200mm 1127-1274 >931 >8 >25 >20 60-62 21CrMoV5 and 42CrMo4 but are not limited to: Typical cladding materials include AISI 430 >200mm 1078-1274 >882 >8 >25 >20 60-62 and AISI 414 Diameters up to 500mm Straightening Rolls Lengths up to 25,000mm Typical materials include X153CrMoV12 A variety of seamless tube mill Manufacturing Process 7. Ultrasonic testing Non-magnetic Rolls types including 8. Finish machining including MPM, PQF and FQM mills Our mandrel bars are manufactured threading if required Assel Mills – both floating and using the following processes: 9. Chrome plating retained 10. Thread phosphating Plug and Pilger mills 1. Steel making (EBT + LF (VD) + ESR) Material specification as required, 2. Forged using both hydraulic Once the mandrel bars have passed including AISI H13, X35CrMo V51 press and rotary forging inspection they are suitably packaged and 4CrMoSi V1 3. Annealing and shipped directly to the steel mill. Threading available to API, ACME 4. Rough machining or metric standards 5. Magnetic testing Full documentation is provided with Chrome plating 6. Heat treatment – either vertical every bar and third party inspection is Both solid and hollow bars or horizontal available if required.

www.Api-engineering.com Steel Mill Supply Experts PRODUCTS Long Product Operations

Rolling Mill Stands Seamless Tubular Rolls and Spare Parts

Rolling Mill Stands are used to control Our Mill Stand sizes vary in accordance API Engineering supply rolls for almost are produced from a speciality hot work the outer diameter of the pipe during with the required dimensions of rolls any application in a modern seamless tool steel and heat treated to obtain the the elongation and diameter finishing and necks, the groove design and the tube mill. Examples of rolls and spare required surface hardness and depth. processes. Mill Stands in rolling mills transmission and drive characteristics. parts typically supplied include: consist of several components and Our engineers have the expertise and Stretch-reducing / systems, all of which are subject to high experience to develop and design Mill Cross-roll piercers rolls sizing mill rolls temperatures, high loads and extreme Stands to suit any steel mill’s specific conditions. needs and requirements. These are the large shaped rolls used Downstream from the mandrel mill is the in the initial piercing of the billet. Two stretch-reducing mill which reduces the API Engineering has been involved Both 2-roll and 3-roll configurations rolls are positioned at an angle to the outer diameter and increases the length in the design and supply of a variety are available and existing stands can normal with guides or discs supporting of the product. of custom built rolling mill stands for be reverse engineered to ensure the the hollow between the rolls. The rolls Seamless Tube Mills around the world. new stands will fit with customers’ are rotated in the same direction and API Engineering supplies both the rolls We supply everything from whole existing equipment. the billet is forced between them with a and the rolling mill stands themselves. sets of stands to individual stands as piercer mandrel forming a hollow in the well as replacement components for We also supply spare components rotating billet. Piercer Plugs various processes including flat-rolling for rolling mills including rolls, and shape-rolling. Our Mill Stands are roller bearings and other consumables, Guides and Diescher Discs Piercer plugs are the first point of currently in use in a number of mills compatible with most international impact onto the furnace-hot-billet manufacturing high quality Seamless manufacturing standards. Guide shoes and Diescher Discs are during the piercing process. As such Tubes. used to support the hollow during the they are a consumable item which piercing process. These wear parts sees incredibly high temperatures Previous projects include; need replacing at regular intervals and forces. API Engineering supplies and API Engineering supply custom- custom-designed forged piercer plugs Stretch-Reducing / Sizing Mills for made replacements to the customers with improved cooling characteristics. both single drive per stand and single requirements. drive per roller configurations Multi-stand mill rolls Elongation Mills including adjustable 3-roll stands The rolls used on the mandrel stands are subjected to high forces and temperatures as the hollow and mandrel bar pass through. For this reason, they

www.Api-engineering.com Steel Mill Supply Experts PRODUCTS Flat Product Operations

Slabs Coils

API Engineering supply components to slabbing API Engineering offer a range of Coil The tolerances on the length are often a large bath of hydrochloric acid. mills for both continuously cast and rolled slabs. Processing systems and equipment. very precise. The equipment API The factors governing the bath Key items include copper mould plates and These systems are built to the highest Engineering supplies is suitable for temperature, length of bath and acidic continuous casting machines. performance and safety standards width of up to 3000 mm, thicknesses of concentration are largely dependent on in order to maximise your yield and up to 25 mm and speeds of up to 150 the chemical composition of Copper Mould Plates productivity. We can cater to confined m/min. the material. spaces and unusual plant layout. Copper moulds are used in continuous casting Shears types we offer include high- Safety is the foremost consideration machines to solidify the material into the desired Our equipment is suitable for a range speed swinging shears, start-stop with all our equipment and our Pickling shape as it passes through the mould. The size and of materials including: shears, flying shears or rotating shears. Lines are no exception. All the lines we shape of the mould is dependent on the casting A variety of stackers are available. supply comply with all applicable local machine and product shape required. All Ferrous Steels and international regulations. Aluminium Slitting The mould must be capable of rapidly cooling the Brass material as is passes through and must therefore Copper Slitting lines are used to cut narrow exhibit excellent thermal conductivity. In addition Stainless Steel coils from main coils. The main coil it must be strong enough to withstand the high is uncoiled before being cut into thermal and mechanical stresses involved. All our equipment is totally computer strips which are then recoiled into controlled. narrow coils. Copper is the most economical choice for meeting these requirements and API Engineering Blanking Lines We offer a complete slitting line solution offers a selection of copper and copper alloys: for light, medium and heavy gauge coils. Blanking Lines are used to convert a coil Each solution is designed specifically for Deoxidized Phosphorus Copper of material into flat sheets. This is done our customers’ requirements. CrZrCu by uncoiling the material so that it is flat, CuAg cutting it to the required length and then Pickling stacking it. The blank which is produced Moulds are typically plated to avoid sticking and can be a variety of shapes including Pickling is a process which uses strong we offer all standard coatings including Cr, Ni, Ni-Fe rectangular, parallelogram or trapezoid acids to remove impurities from metal. and Ni-Co. depending on the way it is cut. This is done by moving the strip through

www.Api-engineering.com Steel Mill Supply Experts PRODUCTS Cooling Beds

Cooling beds are crucial Over the past decade, API Engineering The hot side of the bed will begin Fabrications to the steel manufacturing has been heavily involved in the with grid castings to absorb much Structural fabrications are used successful design and manufacture of the initial heat from the product to support the castings and rakes; process, carefully moving and of cooling beds and cooling bed whilst offering additional support as Other fabrications are used in the cooling the hot steel after the components for Steel Mills in the U.S the product is still malleable. Moving walking mechanism and auxiliary rolling process. Since this and Canada. rakes then lift the product from the grid systems. castings and carry it across the cooling is an integral part of a Steel API Engineering supplies all the bed to the cool side. Additional Items Mill’s manufacturing process, components necessary for cooling any mechanical problems or bed overhauls, upgrades and Aligning Rolls are used close to the cool Each type of cooling bed requires an renovations. Components are cast, side of the bed to align the product with entry and exit solution which ensures failures to the cooling bed forged or fabricated to the end users’ the yard end of the rake setup. minimal damage to the product. Some will have huge consequences requirements and electrical components cooling beds are more complex than for the mill. The cooling bed are supplied through our sister company Rakes others, integrating advanced arranging PPI Engineering. Moving and fixed; and cooling equipment. Safety systems and components therefore Machined or water cut; including cobble protection systems are need to be manufactured to The three most common designs of Including stainless steel welded of particular importance. the highest quality standards cooling bed are Walking Beam, Disc additions; Type and Chain Type. Materials include ASTM A516 Wear items and spare parts supplied and thoroughly tested before Grade 70, BS1501-224-490A/B, by API Engineering include: installation. Disc Type cooling beds carry sheet EN10028 P355GH or equivalent. products using series of discs fixed to Wear plates; rotating shafts. Castings Roller sleeves; Including: Aprons, Grid Castings Rakes; Hot pipes and tubes are cooled on and Rolls; Discs. Chain Type cooling beds using raised Materials include grey iron and steel links to keep each product separate. with heat treatment to customer’s These beds tend to be longer than requirements; they are wide; a result of the product Available casting methods include dimensions they typically cool. aluminium patterns and lost foam casting. Walking Beam cooling beds utilise two sets of rakes, one moving and one fixed, to carry long bars and structural steel components across the bed.

www.Api-engineering.com Steel Mill Supply Experts PRODUCTS ROLLS

Ductile Iron Electrical Pipe Molds Equipment

As an integral part of the workings of and all our components are therefore Ductile Iron Pipe is produced by Extra control for Pb, As, Sn, Sb and Bi Through our sister company Steel Mills, API Engineering supply high carefully inspected and supplied with centrifugal casting. Pipe Moulds made may be implemented if required. PPI Engineering we offer a range of quality forged and cast ferrous and non- full inspection reports. from tool steel are rotated at high speed electrical machines and equipment. ferrous rolls for a variety of hot and cold before molten ductile iron is poured in, Since we are in full control of material In addition, our team of highly qualified rolling applications. Backup rolls are supplied either cast such that centrifugal action forces the production, other grades and personnel are on hand to install, or forged in different material grades material to line the inside evenly. Once compositions are available. commission and repair equipment Rolls supplied include: and chemical contents to meet the the ductile iron has cooled sufficiently at customers premises world-wide. customer’s specific hardness and wear the pipe can then be removed from the Inspection of the Taper Forged Steel Rolls; resistance requirements. mould for further processing. Rotating electrical machines and their Nodular Cast Iron Rolls; The internal diameter of a pipe mould associated equipment are a vital part Grey Iron Rolls. Our engineering department is able Pipe Molds has a shallow taper along its length to of virtually every modern steel mill. to advise customers in selecting grades allow for easy removal of the product PPI Engineering can specify, design Our work rolls can be supplied fully and parameters to achieve optimal API Engineering supply the world’s after casting. This taper is vital to ensure and supply machines from the small finished and hardened in a wide range performance. most discerning Ductile Iron Pipe fast continuous production and under no motors seen in long product run-in of international standard material grades manufacturers. Our pipe moulds are circumstances can there be a reversal in troughs to large piercing roll motors and dimensions to suit the required Seamless Tube mill rolls can be either available in the full range of sizes from the taper direction. and multi-megawatt generators. application. Quality parameters such finish machined on the working surface DN 80 up to DN 1000. as straightness, concentricity and or left rough machined for the customer API Engineering use a variety of PPI Engineering also provide a range of dimensional tolerances are critical to finish. Material inspection techniques to ensure that this transformers and switchgear, including is the case. This includes dimensional those which are used to supply Pipe moulds are produced from a inspection by laser. the very high secondary currents hot work tool steel such as 21CrMo10. required for melt shop furnaces. These A typical chemical composition transformers are designed for use in would be: the challenging environment of steel Type Typical Material Typical Surface Types Treatment mill conditions and are suitable for use at very high ambient temperatures. Cold Mill Rolls 2% Cr, 3% Cr, 5% Cr Steel Deep Hardness Penetration Work Rolls, Intermediate Rolls, Backup Rolls C Si MN P Max. S MAX. CR MO CU MAX. All modern steel mills require control Piercing Rolls Cr, Mn, Mo Tool Steel 240 – 280 HB Forged or cast 0.16 - 0.16 - 0.16 - 0.16 - 0.16 - 0.16 - 0.16 - 0.16 - 0.23 0.23 0.23 0.23 0.23 0.23 0.23 0.23 and automation systems for almost every operation in the production and Straightening Rolls Ductile Iron or High Chromium 65 – 85 HSd Forged or cast inspection process. Our team Cast Iron of engineers can design, supply Stretch Reducing Ductile Cast Iron, Chill Casting 52 – 75 HSd Static or Centrifugal casting and install all necessary field sensors, and Sizing Rolls actuators, instrumentation and

MPM Rolls Ductile Cast Iron, Chill Casting 270 – 330 HB Static or Centrifugal casting control panels.

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