Microstructure and Properties of Q690D High Strength Low Alloy Steel

2021 ◽  
Vol 1035 ◽  
pp. 418-423
Author(s):  
Fang Po Li ◽  
Ning Li ◽  
Cai Hong Lu ◽  
Ming Hua Liang
Keyword(s):  
Carbon Content ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Steel Plate ◽  
High Strength ◽  
Carbon Equivalent ◽  
Low Alloy Steel ◽  
Gas Drilling ◽  
Drilling Rig ◽  
Drilling Equipment

As one of the core equipment components of oil and gas drilling rig, derrick is also the main heavy-duty component. Working environment of derrick is quite bad, the material for which should have not only high strength, but also good plasticity, toughness and weldability. In this paper, the chemical composition, microstructure, tensile properties, impact properties and hardness of three typical Q690D high strength low alloy steel manufactured from different methods were studied. The application feasibility of Q690 for drilling derrick manufacture was analyzed. The experimental results show that the carbon equivalent, tensile properties and impact absorption energy of Q690D steel with different thickness obtained by TMCP and Q-T process were obviously higher than the requirement of corresponding standard. TMCP Q690D steel had better toughness, lower carbon content and carbon equivalent, and its micro-structure was granular bainite. Carbon content of Q-T Q690D steel plate was relatively higher than that of TMCP Q690D, and the toughness was slightly lower than that of TMCP Q690D. The microstructure Q-T Q690D was tempered sorbite, and there was certain zonal segregation in center part. The thickness of steel plate used in derrick was usually less than 40 mm, whose manufacturing technology of Q690D was mature. There is broad application prospect in the field of drilling equipment. The application of Q690D for drilling equipment not only improve the strength grade of equipment materials, but also help to optimize the design of components and ensure service safety.

TENFORM XF450

Alloy Digest ◽  
2007 ◽  
Vol 56 (1) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
High Strength ◽  
Bend Strength ◽  
Low Alloy Steel ◽  
Hot Rolled

Abstract The high strength of Tenform XF450, a hot-rolled high-strength low-alloy steel, allows the user to increase the strength of a finished component or to reduce the thickness. The steel is used in the construction and the automotive industries. This datasheet provides information on composition, physical properties, tensile properties. and bend strength. It also includes information on forming. Filing Code: CS-148. Producer or source: Hille & Mueller, USA Inc. See also Alloy Digest CS-173, November 2012.

Microstructure and Mechanical Properties of High Strength Low Alloy Steel Q550D

2021 ◽  
Vol 1035 ◽  
pp. 424-429
Author(s):  
Fang Po Li ◽  
Ning Li ◽  
Xian Lin Wang ◽  
Ming Hua Liang
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Oil And Gas ◽  
High Strength ◽  
Service Performance ◽  
Low Alloy Steel ◽  
Micro Structure ◽  
Gas Drilling ◽  
Drilling Equipment ◽  
Equipment Manufacture

Drilling equipment is the key of oil and gas drilling development. Its manufacturing quality and service performance have important influence on oil and gas drilling development safety. The application of high strength grade steel plays an important role in improving drilling equipment manufacturing level and service performance. In this paper, the chemical composition, microstructure, tensile properties, impact properties and hardness of TMCP Q550D and Q-T Q550D high-strength low-alloy steel were tested and compared, and the application feasibility for drilling equipment manufacture was analyzed comprehensively. The experimental results show that the mechanical properties of Q550D by two different methods were obviously higher than the requirement of national standard. Q550D steel had excellent plasticity and toughness, which meets the requirement of drilling equipment manufacture. The main difference between different steel lied in their chemical composition and micro-structure. Carbon content of TMCP Q550D steel plate was lower than that of QT Q550D, and TMCP Q550 was mainly depend on TMCP technology and micro-alloy elements, whose micro-structure was mainly granular bainite. Q-T Q550D was mainly depend on Q-T technology, and its microstructure was tempered sorbite with obvious banded structure and slightly low toughness.

Cyclic behavior and constitutive model of high strength low alloy steel plate

2020 ◽  
Vol 217 ◽  
pp. 110798
Author(s):  
Chen Jia ◽  
Yongsong Shao ◽  
Lanhui Guo ◽  
Hongbo Liu
Keyword(s):  
Constitutive Model ◽  
Alloy Steel ◽  
Steel Plate ◽  
High Strength ◽  
Cyclic Behavior ◽  
Low Alloy Steel

KAISALOY

Alloy Digest ◽  
1957 ◽  
Vol 6 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Weight Reduction ◽  
High Strength ◽  
Low Alloy Steel ◽  
Steel Corporation

Abstract KAISALOY is a high-strength low-alloy steel combining excellent formability and good weldability with desirable corrosion resistance. It is intended primarily for weight reduction. Kaisaloy is furnished in three grades. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SA-53. Producer or source: Kaiser Steel Corporation.

YMPRESS LASER S420MC

Alloy Digest ◽  
2016 ◽  
Vol 65 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Laser Cutting ◽  
High Strength ◽  
Bend Strength ◽  
Low Alloy Steel ◽  
Hot Rolled ◽  
Minimum Yield

Abstract Ympress Laser S420MC (EN 10149-2) is a hot-rolled, high-strength, low-alloy steel with 420 MPa minimum yield strength. It is optimized for efficient laser cutting and post-cut processing. This datasheet provides information on composition, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming. Filing Code: SA-758. Producer or source: Tata Steel.

JALTEN

Alloy Digest ◽  
1953 ◽  
Vol 2 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Tensile Properties ◽  
Alloy Steel ◽  
New Products ◽  
High Strength ◽  
Low Alloy Steel ◽  
Weight Saving ◽  
Steel Corporation

Abstract JALTEN is a high-strength low-alloy steel that is readily welded and easily fabricated. It offers an opportunity to incorporate many weight-saving features in design of new products. It is produced in three grades, namely, JALTEN, #1, JALTEN #2, JALTEN #3. This datasheet provides information on composition and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SA-12. Producer or source: Jones & Laughlin Steel Corporation.

YMPRESS LASER S355MC

Alloy Digest ◽  
2016 ◽  
Vol 65 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Laser Cutting ◽  
High Strength ◽  
Bend Strength ◽  
Low Alloy Steel ◽  
Hot Rolled ◽  
Minimum Yield

Abstract Ympress Laser S355MC (EN 10149-2) is a hot-rolled, high-strength, low-alloy steel with 355 MPa minimum yield strength. It is optimized for efficient laser cutting and post-cut processing. This datasheet provides information on composition, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming. Filing Code: SA-750. Producer or source: Tata Steel.

STROLOY 5C

Alloy Digest ◽  
1985 ◽  
Vol 34 (7) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
High Strength ◽  
Heat Treating ◽  
Stress Relief ◽  
Good Combination ◽  
Low Alloy Steel ◽  
Good Ductility

Abstract STROLOY 5C is a high-strength low-alloy steel developed for seamless hot-or-cold finished tubing and extruded shapes in the water-quenched-and-tempered condition. In this condition the steel exhibits high tensile and yield strengths and good ductility. It can be are welded readily using the procedures prescribed by the manufacturer. Preheat, postheat and stress relief normally are not required. Stroloy 5C tubing is used for applications requiring a good combination of strength, toughness and weldability. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-410. Producer or source: Babcock & Wilcox Company. See also Alloy Digest SA-213, revised December 1976.

ARMCO HIGH STRENGTH No. 2

Alloy Digest ◽  
1962 ◽  
Vol 11 (1) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
High Strength ◽  
Heat Treating ◽  
Low Alloy Steel ◽  
Excellent Corrosion Resistance ◽  
Superior Mechanical Properties

Abstract Armco High Strength No. 2 is a high-strength low-alloy steel designed to give excellent corrosion resistance coupled with superior mechanical properties. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-123. Producer or source: Armco Inc., Eastern Steel Division.

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