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  • 42CrMo VS 42CrMoA differences

    42CrMo VS 42CrMoA differences

    Both 42CrMo and 42CrMoA are Chinese GB standard high strength alloy steels, 42CrMoA is the main material for threaded bar and bolt Anyang Longteng Heat Treatment Material Co.,Ltd. Please noted, Anyang Longteng’s 42CrMoA is special ordered with our own technical requirements, short for ̶...
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  • New Hex bolt production line facilities are now arriving, CE certified, standard EN14399  EN15048

    New Hex bolt production line facilities are now arriving, CE certified, standard EN14399 EN15048

        Anyang Longteng Heat Treatment Material Co.,Ltd is a professional high strength bolt manufacturer based in China, providing heat-treated high strength Post tension threaded rod, wind turbine foundation cage, ground anchor bolt, rock bolt, tie rod, seamless pipes.  This year, the bo...
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  • Post Tension pre-stressing Bolt system for Bridge structures

    Post Tension pre-stressing Bolt system for Bridge structures

      Diameters: M64 M56 M48 M42 M39 M36, customers’ technical requirements Length: 1~11.8 meters Property Class: 8.8  9.8 10.9 12.9 Accessories: Nut, plain washer, dome/spherical nut, dome/spherical washer, coupler Thread: cut thread, rolled thread Thread length: Acc. to customers’ techn...
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  • Production process- Anchor plate for wind turbine foundation cage system

    Production process- Anchor plate for wind turbine foundation cage system

    Wind turbine anchor plate for foundation has 2 parts: upper and lower anchor plate (embeded and template ring), which are connected by splice plates and high strength anchor bolts.  Splice plate is a kind of rectangle plate which has the same mechanical properties of anchor plate, usually wind tu...
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  • LT Tension Structures – Tension Rods, Widely applied for prestressed parts and large-span steel structure buildings.

    LT Tension Structures – Tension Rods, Widely applied for prestressed parts and large-span steel structure buildings.

    Anyang Longteng Heat Treatment Material Co., Ltd. (formerly Anyang Longteng Special Steel Manufacturing Co., Ltd.) was established on January 19, 2005, with a registered capital of 147.89 million yuan, covering an area of more than 300 acres, a building area of 100,000 square meters, and employee...
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  • Good News, Anyang Longteng obtain CE certificate !

    Good News, Anyang Longteng obtain CE certificate !

    Our products have been tested and on-site audited by CE certification body – Lloyd’s Register. All of our indicators and systems are in compliance with relevant required standards, hence, we obtained the CE certification issed by Lloyd’s Register and sales pass to enter the Euro...
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  • Install process of anchoor bolt cage

    Install process of anchoor bolt cage

      According to supply list, check the numbers and dimensions of each components. Check whether the anchor plates are deformed, whether the anchor bolts are damaged. Unqualified products should be removed.   Lift lower template to a flat area and install lower template with splice plates.  ...
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  • M56 Grade 10.9 full threaded bar sulotions

    M56 Grade 10.9 full threaded bar sulotions

                                          Material:  ASTM A193 B7, 4140, 42CrMoA  STANDARDS: GB/T 3098.1  ISO 898-1  OR AS CUSTOMER’S REQUIREMENTS   Mechanical Properties of Class 10.9 Bolt BOLT 10.9 D Nom Diameter at smooth part Pitch Cross Section Yield force Ultimate force mm mm mm ...
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  • Chinese standard V.S. International standards – Anchor bolt products

    Chinese standard V.S. International standards – Anchor bolt products

    No. Title of standard ISO/EN standard GB/JB standard Correspondence 1 Lubricating Grease for Unbonded Tendons JG/T 430 2 Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens ASTM E1077 GB/T 224 MOD 3 Hot Rolled Products of Structural Steels EN ...
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  • Yulong Group internal meeting – Exchange, study and expand ideas, learn from each other to promote improvement

    Yulong Group internal meeting – Exchange, study and expand ideas, learn from each other to promote improvement

    In the morning of 29th Auguest, Anyang Longteng Heat Treatment Material Co.,Ltd attended internal meeting to Anyang Yulong Group, accompanied by heads of production, marketing,  accounting, administration departments.  Yulong Group is consist of Anyang Yulong Coke Co.,Ltd, Anyang Longteng Heat Tr...
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  • Anchor Bolt Steel Grades GB standard  TECHNICAL REQUIREMENTS  1 Environmental requirements

    Anchor Bolt Steel Grades GB standard TECHNICAL REQUIREMENTS 1 Environmental requirements

    ANCHOR BOLTS TECHNICAL REQUIREMENTS 1 Environmental requirements The anchor bolts for wind turbine foundation have an operating temperature range of -40℃~50℃, and relative humidity ≤ 95%. Outdoor climatic conditions for wind turbine foundation anchor bolrs, include areas with high air humidity, ...
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  • Anchor Plate Ring Packing Factory Standard – Anyang Longteng Heat Treatment Co.,Ltd

    Anchor Plate Ring Packing Factory Standard – Anyang Longteng Heat Treatment Co.,Ltd

    ANCHOR RING PACKING STANDARD 1. TARGET We establish this factory standard to regularize packing operation for anchor ring products; to ensure products are able to meet the requirements of environmental inspection; To protect products from damaging during transportation. 2. SCOPE This standard  sp...
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  • CE certificate under audition EN1090  EN14399 EN15048

    CE certificate under audition EN1090 EN14399 EN15048

    From 2th – 4th, Anyang Longteng Heat Treatment Material Co.,Ltd is under audition of CE certificate. In order to chase more orders overseas. Our board decided to pass CE certificates as soon as possible. Now auditors from Lloyd’s Register of Shipping are under inspection in our factor...
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  • Anchor Bolt Raw Material Billets Surface quality – 42CrMo

    Anchor Bolt Raw Material Billets Surface quality – 42CrMo

    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 ca...
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  • Linzhang Wind Farm Pro-tension inspection on site

    Linzhang Wind Farm Pro-tension inspection on site

    Linzhang Project required us supply wind turbine foundation anchor bolt cage assemblies for GOLDWIND turbines. The bolt length is one of the longest ones in the past projects – 6275mm M48 grade 8.8 anchor bolt rod should be yield strength ≥ 660 Mpa, tensile strength ≥ 830Mpa, Elongation ra...
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  • Foundation Rock Bolt Set

    Foundation Rock Bolt Set

    Rock bolt assemblies are widely applied for WTG foundation system, contraction steel strecuture, pre-stress, post-tension applications. STANDARD: ISO 898-1 ; GB/T 3098-1; associated COMPONENTS: anchor rod, anchor ring assembly, nut, washer, PVC protective pipe, thread protective cap, heat-shrink ...
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  • Bird View of Anyang Longteng factory, with vedios

    Bird View of Anyang Longteng factory, with vedios

            Longteng established in 19th Jan. 2005, with more than 147,890,000 (147 million 890 thousand) registered capital, building area 100,000 square meters, is a diversified developing operational entity, combining research and development, manufacturing, application and expor...
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  • 42CrMo QT replace ASTM A193 B7, round bar, fully threaded bar, stud bolt

    42CrMo QT replace ASTM A193 B7, round bar, fully threaded bar, stud bolt

    ASTM A193 Grade B7/B7M is alloy steel, GB 42CrMo AISI 4040/4142 quenched and tempered.   Chemical composition: C: 0.37 ~0.49; Si: 0.15~0.35; Mn:0.65~1.10; S: ≤0.035; P: ≤0.035; Cr:0.75~1.20; Mo: 0.15~0.25 Thread sizes:  M16~M56 Thread screw: Cold thread Surface Treatment: Oil, Grease, Dacrom...
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  • CPPCC Visit Yulong Group’s New Plant- Anyang Longteng φ114 seamless pipe production line114

    CPPCC Visit Yulong Group’s New Plant- Anyang Longteng φ114 seamless pipe production line114

    On 28th July 2020, representatives of the Chinese people’s political consaltative conference(CPPCC) visited Anyang Longteng φ114 seamless pipe new production line.  Mr. Bob Feng, General Manager of Anyang Longteng Heat Treatment Material Co.,Ltd gave a brif introduction to our visitors.  YU...
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  • District Mayor of Yindu District Visit Anyang Longteng’s New Plant

    District Mayor of Yindu District Visit Anyang Longteng’s New Plant

    On 17th July, 2020, Indu District Mayor Mr. Lei Ming visit our new plant - φ114 seamless pipe hot continuouss rolling production line project. Mr. Lei Ming cares about construction condition, and production line ability.  Mr. Bob Feng, General Manager of Anyang Longteng Heat Treatment Material Co...
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  • Alloy steel round bar and full threaded bar, ISO 898-2 fastener supplier

    Alloy steel round bar and full threaded bar, ISO 898-2 fastener supplier

    PERFORMANCE: WEAR RESISTANCE           ——         Medium TOUGHNESS                        ——         Very High RESISTANCE TO SOFTENING EFFECT OF ELEVATED TEPERATURE ——  Low DEPTH OF HARDENING  ——-     Medium MACHINABILITY               ——-      Medium GRINDABILITY                  ——-       High ...
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  • During Pedemic, JINHU Wind Farm Project was delayed but constructions resumed soon

    During Pedemic, JINHU Wind Farm Project was delayed but constructions resumed soon

      JINHU Wind Farm Project schedule was delayed because of pedemic in 2020, another posponed reason is JINHU Project have 2 kinds wind turbines, so that engineers would have to provide two foundation designs.  However, Anyang Longteng Heat Treatment Material Co.,Ltd, the subcontractor for wi...
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  • MALIANG WIND FARM – ANYANG LONGTENG SUPPLY foundation anchor bolt system

    MALIANG WIND FARM – ANYANG LONGTENG SUPPLY foundation anchor bolt system

    MALIANG WIND FARM 2nd stage were approved by Hubei Province Development and Reform Commission., located in SHAYANG TOWN, JINGMEN CITY, HUBEI PROVINCE,  with aiming capacity 100000 KW,  2.5KW  turbines. ANYANG lONGTENG HEAT TREATMENT MATERIAL CO.,LTD provides M48 grade 8.8 anchor bolt cages for MA...
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  • Magnetic Particle Examination for Anchor Bolt

    Magnetic Particle Examination for Anchor Bolt

    Magnetic particle inspection, also called MPI , or MT is a non-destructive test(NDT) process for detecting surface and shallow subsurface discontinuities in our heat treatment steel round bar materials. In order to improve our produce quantity, our wind turbine foundation system anchor bolt, roof...
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