NEWS

  • Development Trend of High Strength Bolting Steels – China manufacturer

    Development Trend of High Strength Bolting Steels – China manufacturer

        As everyone knows, strength property class for stud bolts are 8.8, 9.8, 10.9 and 12.9. And the main materials are mostly Quenched and tempered mid-carbon steel or mid-carbon alloy steel.     As the development of automobile, machinery, construction, renewable energy industries,  Fasteners, in...
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  • Perform Indicator for Steel Grade 42CrMo, Chemical and Mechanical Properties and performance

    Perform Indicator for Steel Grade 42CrMo, Chemical and Mechanical Properties and performance

    This article is to give brief introduction for grade 42CrMo, which is one of the most important alloy steel grade for high strength huge bolt in Chinese market, and which is the most common grade in our LT factory. If still more questions, welcome to contact us [email protected] Alloy Steel   Chi...
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  • SELF DRILLING HOLLOW GROUTING BOLT

    SELF DRILLING HOLLOW GROUTING BOLT

    Self-Drilling Anchors The self-drilling Hollow bar anchor system is comprised of a hollow threaded bar with an attached drill bit that can perform drilling, anchoring and grouting in a single operation. The hollow bar allows air and water to freely pass through the bar during drilling to remove d...
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  • Partial Standard for high strength fasteners

    Partial Standard for high strength fasteners

    70.1-2008 GB/T six angle cylinder head screws GB/T 70.2-2008 in the six corners of flat head screws 70.3-2008 GB/T six angle head screws GB/T 825-1988 screw ring 889.1-2000 GB/T type 1 non metallic insert six angle lock nut 889.2-2000 GB/T 1 non metallic insert six angle locking nut fine teeth 89...
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  • Wind Turbine Foundation feet, Anchor Bolt ‘s Surface Quality Acceptance

      The surface quality of steel round bar shall conform to GB/T3077-2015 “ALLOY STRUCTURE STEEL”-6.10.1 The surface of steel materials used for pressure processing    The surface of steel materials used for pressure processing shall be free of crack, scar, folding or sundry matters. In...
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  • Customer Award us “Green Supplier”“Honest Supplier”

    Customer Award us “Green Supplier”“Honest Supplier”

    In the year 2018, we supply around 900 foundations for wind turbines. One of our customer invited us to attend their annual meeting, and awarded us the  “GREEN SUPPLIER” and “HONEST SUPPLIER”. The first left one is our general manager Mr. FengBo.       In our pl...
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  • PSB400 PSB500 PSB785 PSB830 PSB930 PSB1080 Steel Rebars

    PSB400 PSB500 PSB785 PSB830 PSB930 PSB1080 Steel Rebars

                    P – Prestressing S – Screw-thread B – Bars Screw-thread steel bars for the prestressing of concrete (also known as the finishing rolling rebar or reinforcing rebar) is reinforced straight steel rebar of large diameter with...
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  • How to simulate real tension condition at sight – Anchor Bolt Test During Production

    How to simulate real tension condition at sight – Anchor Bolt Test During Production

    Anyang Longteng Heat Treatment Co.,Ltd are professional high duty steel anchor bolt manufacture and exporter. We got the advanced technology to produce anchor bolt, high strength fastener, rock bolt, hold down bolt, threaded rods, anchor cages, etc. Below is the main process to produce the anchor...
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  • Private-Owned Companies Now Earn Government Support – Anyang Longteng Heat Treatment Material Co.,Ltd

    Private-Owned Companies Now Earn Government Support – Anyang Longteng Heat Treatment Material Co.,Ltd

    Recently, Chinese central government has continuously held many meetings discussing about the development difficulties and economic pressures, especially for those private enterprises. Many new polices to help private enterprises are soon coming out, some of which are even unprecedented. To help ...
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  • Full Threaded Rock Bolt, Mining Tunnel Application, anchor bolt, FULLY RIBBED BAR

    Full Threaded Rock Bolt, Mining Tunnel Application, anchor bolt, FULLY RIBBED BAR

    Rock bolts are widely used for rock reinforcement in mining and tunneling. Our heat-treated rebars have big advantage on yield strength, tensile strength and pre-stress, which could help to support underground tunnels, roof support. Steel grade:  20MnSi Dia Yield strength MPa Tensile streng...
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  • Chemical Composition of Steel rebars for Resin Rock Bolt

    Chemical Composition of Steel rebars for Resin Rock Bolt

    1. Chemical composition of resin rock bolt rebar shall conform to Table 1. Table 1 Chemical Composition  Element 20MnSi 30MnSi Percentage, % Tolerance Percentage, % Tolerance + - + - C 0.17-0.23 0.02 0.02 0.27-0.34 0.02 0.02 Si 0.40-0.70 0.03 0.03 0.60-0.90 0.03 0.03 Mn 1.30-...
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  • Winter Solstice Day in Anyang Longteng Heat Treatment Material Co.,Ltd

    Winter Solstice Day in Anyang Longteng Heat Treatment Material Co.,Ltd

    On December 22th, it’s the WINTER SOLSTICE in Chinese lunar calendar. There is a saying that if you eat dumplings at the winter solstice day, it won’t freeze your ears off.  It has been a tradition for our company to have a warm dumpling day with every employees. So from the early mor...
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  • Quality Control System for Resin Rock Bolt

    Quality Control System for Resin Rock Bolt

    1. Definition of Procedure Test: is a Quality test on specific procedures of resin rock bolt production except the procedures after packaging steps.   2. Quality tester should perform first inspection on below procedures. Production will continue only with first inspection pass. 2.1 Heat-treatmen...
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  • How do we inspect Rock Bolt Raw Material ?

    How do we inspect Rock Bolt Raw Material ?

    We’re Anyang Longteng Heat Treatment Material Co.,Ltd, a professional high duty rock bolt manufacturer. Here, we present our raw materials rules. Sharing this is because raw materials are one of the most importance part that catch client’s attention. Besides production process, raw ma...
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  • LT Production Key Process for Rock bolt manufacturing

    LT Production Key Process for Rock bolt manufacturing

    Anyang Longteng Heat Treatment Material Co.,Ltd is a professional manufacture and trading combo for yielding bolt, anchor bolt, rock bolt support system, ductile rock bolt for rock burst applications.   We would like to share the most common production procedure. Please well noted that this is ju...
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  • LT Employees Take Examination Regularly

    LT Employees Take Examination Regularly

    Anyang Longteng Heat Treatment Material Co.,Ltd always pays its attention on its employees’ working ability. Since human resources are always the core reason for a enterprise developing . We know that only we can keep the employees high skilled and trained, our factory could be creative, an...
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  • UK Customer Visited Anyang Longteng in December

    UK Customer Visited Anyang Longteng in December

    On 5th, Dec. 2018, UK customer, Mr. Christ visited us for mine rock bolt. Our General Manager Mr. Feng Bo, Vice General Manager Mr. Fu Guangqing, exporting managers Mr. Leo Sun, Ms. Cora Tsao, technicians Mr. Fu Zhixin attended this meeting. Both parties make presentations, asked questions, put f...
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  • QT Quanlity testers in Longteng

    QT Quanlity testers in Longteng

    Longteng’s seamless production line has a special group – a group of QC Ladies. Working environment is tough and difficult. Steel pipes are around 40-50 degree on the inspection stand, but these ladies have to do test and stoop down hundreds of times every day. With their dedication, ...
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  • Anchor Bolt grouting procedures

    Anchor Bolt grouting procedures

    This guide addresses proper procedures for the anchoring of embedments (bolts,threaded rod, rebar) into concrete. Typically, a structural engineer evaluates several factors before proceeding with an anchor bolt grout project. Anchor strength and long term performance are dependent on a variety of...
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  • LT’s Willing to Help More Students to Have Better Study Environment

    LT’s Willing to Help More Students to Have Better Study Environment

    At this autumn, LT attend to the charity activity, helping students to college. Hope more students who lives in poor families could better educated. This charity activity is on the target of helping more poor students before they attend to school in September. Mostly students are just graduate fr...
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  • New hot-rolled continuous pipe rolling mill bought by LT

    New hot-rolled continuous pipe rolling mill bought by LT

      On 2018-08-08, Our company Anyang Longteng Heat Treatment Material Co.,Ltd and Taiyuan Heavy Industry Co.,Ltd sign a contract for purchasing φ114 hot-rolled continuous tube rolling mill, including design, manufacture, delivery and services to out company. Our chairman Mr. Feng Dibao, ge...
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  • Production Security Trainning and Examination Activity

    Production Security Trainning and Examination Activity

    Nobody wants to see any security accident to happen, then how do we prevent them? The key is to improve workers’ sense of responsibility and security awareness. But security awareness should be improved step by step, in stead of complete within one day. What’s more, To obtain securit...
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  • Global Wind Day

    Global Wind Day

    We love the wind!  Because it’s free… Because it’s good to the environment… Because it provides jobs… Because it will never run out… On June 15, 2009, the world’s first celebrated Global Wind Day. Global Wind Day recognizes the clean, renewable energy pro...
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  • Quality Management System Courses Held in Anyang Longteng

    Quality Management System Courses Held in Anyang Longteng

    Recently, our company invited a senior Trainer of quality management system to give us courses of ISO9000:2015 “The Basis and Terminology of the Quality Management System”, ISO9001:2015 “Quality Management System Requirements”. Our general manger Feng Bo, together with all...
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