x70 rolling thickness

(PDF) Correlation of rolling condition, microstructure

Rolling Conditions and Microstructures of the X70 Steel Specimens Finish Rolling Start Cooling Finish Cooling Cooling Rate Fraction of MA Fraction Specimen Temperature (°C) Temperature (°C) Temperature (°C) (°C/sec) Microstructure* Constituent (Pct) of RA (Pct) A1 830 to 860 780 to 810 100 16.0 AF QPF,BF 3.0 1.7 A2 200 19.0 AF BF


In the present study, API 5L X70 pipeline steel samples were deformed by hot-rolling cooled in air or quenched in water and subsequently tempered at different temperatures. X-ray diffraction (XRD API 5L X70 Pipe suppliersAPI 5L X70 PSL 1 Pipe Seamless and Welded API 5L X70 Grade B CARBON STEEL PIPE Up To 48 available. Dealer price of API 5L X70 Gr. B Seamless, API 5L X70 Welded Pipe Call:+91-22-4343 1313 Send Mail:[email protected] Reliable Pipes & Tubes Ltd is Manufacturer of API 5L X70 Pipe in India, we are producing API 5L X70 Grade B Pipe & API 5L X70 PSL1

Anisotropy and microstructural evolutions of X70 pipeline

The material used was a commercial X70 pipeline steel (Baosteel, Shanghai, China) supplied in a form of hot-rolled plate with a thickness of 9.5 mm. The microstructure is a coexistence of PF and QF. The chemical composition was determined by inductive coupled plasma-optical emission spectrometry, and the chemical composition obtained in this Bending Thick Steel Plate - The Chicago CurveMay 22, 2016 · There are many variables to consider such as thickness, surface and edge condition, as well as the materials chemical composition. Plate bending, also referred to as plate rolling, is a process whereby a force is applied to a plate causing deformation along the bending axis forcing the plate to bend at a desired angle. At that moment of bend

CN104498833A - Low-cost X70 pipeline steel and rolling

The invention belongs to the field of pipeline steel preparation and in particular relates to low-cost X70 pipeline steel free from the element Mo and a rolling process of the steel. The pipeline steel is prepared from the following chemical components in percentage by weight:0.06%-0.08% of C, 0.14-0.25% of Si, 1.7%-1.85% of Mn, less than or equal to 0.015% of P, less than or equal to 0.002% DSAW Pipes - Carbon Steel Plates DSAW Steel PipesJSW Steel USA Plant is Capable of Rolling Pipes from 24 inch to 48 inch OD, with wall thickness up to 1.25 inches. X52, X56, X60, X65, X70, X80, A252-2, A252-3; DIA Range 24" to 48" OD; Wall Thickness.375" min and .75" max for 24" and 26" dia pipes .375" min and 1.25" max for dia greater than 26" Length Double Random Lengths with min. 38

Effect of TMCP rolling schedules on the microstructure and

Laboratory scale rolling was conducted on 120 × 200 × 20 mm sections of API X70 transfer bar. The initial as-received steel had a chemical composition outlined in Table 1 along with two industrially produced API X70 samples (X70, 6.4 and 10 mm thicknesses) used for benchmarking purposes. Effect of temperature for the start of finish rolling on Nov 16, 2012 · A feature of realizing CR + AC technology in continuous broad strip hot rolling mills (CBS HR) during production of thick strip (1216 mm) of steel X70 in the subject in question is limitation with respect to rolled product thickness and temperature for rolling in a group of finish stands in order to prevent equipment overloading.

Fuji X70 Review - Ken Rockwell

Jul 20, 2016 · Fujifilm X70 (comes in black or silver, 11.9 oz./339 g with battery and card, about $699) bigger.I got my X70 at Adorama; I'd also get it at or at B&H.. This ad-free website's biggest source of support is when you use those or any of these links to my personally-approved sources when you get anything, regardless of the country in which you live. Heavy Wall Seamless Line Pipe X70X80 for Sour Service Apr 04, 2011 · The Vallourec&Mannesmann Tubess alloying concept for line pipe steels based on low carbon concept [1] was extended to grades X70 and X80 with wall thicknesses up to 75mm. In this paper the latest results on industrial studies on high strength heavy-wall steels manufactured by seamless hot rolling and subsequent quench and temper treatment

Hot-rolled coil:buy from the manufacturer - Metinvest

Metinvest enterprises produce hot-rolled coils with a thickness of 1.2-25 mm in accordance with the requirements of international standards and customer specifications. Products are available both as hot-rolled and with special in-line treatment (including controlled rolling, thermomechanical rolling and normalised rolling). Investigation of X70 line pipe steel fracture during Fig. 1 Desk-top micro rolling mill with flexible speed ratio. Table 1. Parameter conditions in experimental and analysis. Roll Work roll diameter(mm) Rolling speed(rpm) Roll Youngs modulus(GPa) Passion ratio 27 0-100 580 0.30 Foil Entry foil thickness(µm) Reduction (%) Youngs modulus(GPa) Poisson ratio 50 and 100 0-50 210 0.30

JSW - Hot Rolled

JSW Steel manufactures Hot Rolled (HR) coils at its state-of-the-art Hot Strip Mills (HSM), at Vijayanagar (Karnataka) and Dolvi (Maharashtra). Vijayanagar HSM-I and HSM-2 with commissioned capacities of 3.2 MTPA and 5 MPTA respectively are equipped with sizing presses and an automatic line inspection facility which makes this facility the widest Hot Strip Mill in India. Microstructure and Thickness Effects on Impact Behavior Apr 05, 2021 · In this study, three American Petroleum Institute grade X70 steel plates of similar chemistry, ranging in thickness from 13.5 mm-22 mm, were subjected to drop-weight tear and Charpy V-notch tests to determine the effects of plate thickness and microstructure on the formation of separations and on impact behavior.


TEXTURAL ANALYSIS THROUGH THICKNESS OF API X70 STEEL AFTER HOT ROLLING AND POST HEAT TREATMENT* Mohammad Masoumi1 Hamilton Ferreira Gomes de Abreu1 Abstract In the present study, API 5L X70 pipeline steel samples were deformed by hot-rolling cooled in air or quenched in water and subsequently tempered at different temperatures. TEXTURE INHOMOGENEITIES THROUGH THICKNESS BY texture through thickness of API 5L X70 pipeline steel has been studied by using X-ray diffraction, electron backscattered diffraction (EBSD) and scanning electron microscope (SEM). The samples were hot rolled at 1000 °C to 44% and 67% reduction in thickness and


Masoumi, M.; Abreu, Hamilton Ferreira Gomes de; "TEXTURE INHOMOGENEITIES THROUGH THICKNESS BY HOT ROLLING WITH DIFFERENT HEAT TREATMENT PROCESSES OF API 5L X70", p. 88 . In:Proceedings of the International Symposium on Crystallography [Blucher Physics Proceedings, v.1, n.3]. São Paulo:Blucher, 2015. ISSN 2358-2359, DOI 10.5151/phypro-sic100-088 Toughness and separation improvement of thick plate X70 The effects of plate thickness and separations on impact behavior were also investigated. Tensile, Charpy V-notch (CVN), and drop-weight tear testing (DWTT) were used to evaluate the plates mechanical properties in three orientations:0°, 45°, and 90° from the plates rolling direction.

X70 Steel Scientific.Net

Abstract:The influences of testing specimen thickness (TST) on fracture toughness, including drop weight tear test shear area (DWTT) and crack tip opening distance (CTOD), are studied by experimental method for X70 steel. Results show that DWTT and CTOD reduce gradually with the specimen thickness increasing, showing an apparent TST effect.TEXTURAL ANALYSIS THROUGH THICKNESS OF API X70 Keywords:API-X70 steel, Hot rolling, EBSD. After hot-rolling, at mid-thickness, texture intensities were reduced. The tempering treatment at 350°C of deformed samples (sample c) generated