Product Introduction Prestressed threaded bar (or PT bars) are high-strength, high-precision, straight-line steel bars with external threads on the entire steel bar. The steel bar can be screwed onto the connector with internal threads at any section or screwed with a threaded nut with internal threads for anchoring. The utility model has the advantages of simple connection and anchorage, strong adhesion, safe and reliable tension and anchorage and the like, and is a novel material for developing prestressed concrete component. PT Bars are currently used to anchor and support the dam body form of the dam foundation. In the cable-stayed bridge, fully threaded bars are used as the main ribs and bridge foundations of the main tower. The use of fully threaded steel bars saves steel, reduces component area and reduces component weight. The continuous external thread is hot rolled. The shape of thread bar is shown as following figure. The main dimension ranges from 15Â mm-50Â mm and the grade ranges from 500/630Mpa to 1200/1330Mpa.
Mo-Re Alloy Bar Main Types: Mo-20%R Mo-41%R Mo-44.5%Re;Mo-47.5%Re Common Uses: Mo-Re alloy bar is mainly used as components,structural materials,electron probe materials in aerospace and other high-temp fields. Specification(mm): 1.017 L Note: Other types of Mo-Re alloy bar are available through consultation between supplier and buyer.
1. The standard: GB/T-42CrMo AISI-4140 DIN-42CrMo4 JIS ¡§CSCM440 2. Length: 3000mm-6000mm 3. Dia: 80mm-800mm 4. Process: EAF+LF+VOD+Forged+Heat Treatment(optional) 5. Delivery condition: Hot forged +Rough machined(black surface after Q/T); Hot forged + Rough machined + Turned 6. Test: Ultrasonic test according to SEP C/c` 7. Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing 8. Material details will be as per agreed technical specifications specification: 120mm,140mm,160mm,180mm(diameter) the length can meet demand of client,the weight is up to the diameter and the length.
Material:45# carbon steel/45Cr Thread angel: 60°/75° Thread Pitch: 2.0P 2.5P, 3.0P, 3.5P Fit For Rebar Diameter: 16-40mm
Material:45# carbon steel/45Cr Thread angel: 60°/75° Thread Pitch: 2.0P 2.5P, 3.0P, 3.5P Fit For Rebar Diameter: 16-40mm
Size:D15 D20 or as your customer request Surface: black or galvanized MOQ:5000pcs Payment: TT or LC at sight Packing: T bag Length : cut as your per request
1. Use solid 45# carbon or 40Cr steel as raw material. 2. Tensile Strenth is more than 540MPa, 630MPa and 720MPa. The standard rebar threaded coupler is suitable for connecting two bars of the same diameter, where one bar can be rotated. It comprises an internally threaded sleeve with two right hand threads which are tapered towards the middle of the coupler. The bar ends are square cut and thread is onto the bar. A nominal allowance of +25mm should be allowed per threaded bar end for square cutting the bar end. The couplers are generally torqued onto the reinforcing bar in the bar threading shop, the internal threads protected by plastic end caps. The threaded ends of the continuation bar are protected by plastic thread protectors.
The hardenability, hardening and tempering hardness, wear resistance and strength of Cr12MoV die steel are higher than Cr12. Used in the manufacture of various cold-punching dies and tools with large cross-sections, complex shapes and heavy working conditions, such as punching die, trimming die, piping die, steel plate Cr12Mov thick plate deep drawing die, circular saw, standard tool And gauges, thread rolling molds, etc.
Used as important tempering parts requiring good toughness, high strength, and large size, such as heavy machinery high-load shafts, turbine shafts larger than 250mm, helicopter rotor shafts, turbojet turbine shafts, blades, high Load transmission parts, crankshaft fasteners. Gears, etc.; can also be used to operate rotor shafts and blades with temperatures exceeding 400 °C; it can also be used to make important parts of special performance requirements after nitriding treatment. It can be used after low temperature tempering or after isothermal quenching. Use for strength steel.
It is mainly used for the production of instruments, watch parts, automobiles, machine tools and other various machines with small force and strict requirements on size and finish. It requires strict dimensional accuracy and smoothness, and relatively low mechanical performance. Standard parts such as gears, shafts, bolts, valves, bushings, pins, fittings, spring seat cushions and machine screws, plastic molding dies, surgical and dental surgical instruments.
Manual steel rod bender, reasonable design, simple structure and can be bend steel rod diameter with 4-20mm to any required shape applying to bridge, tunnel and small, medium as well as large construction projects. The bending machine mainly bends the main rib, and the general steel bar diameter more than 20mm. Mainly divided into manual control angle and computer panel input angle automatic bending, generally bending 60 degrees, 90 degrees, 135 degrees more.
Glass fiber rebar or GFRP is a new kind of composite material which is used as reinforcement materials that combines with epoxy resin and curing agent then through pultrusion molding process. Products Feature: 1. High Corrosion Resistance:The base materials used by the bolt are durable materials, and they are molded through the composite process. The life span is up to 100 years. They can be used as permanent support materials; 2. High Tensile Strength:The load is approximately double that of a steel bar with the same diameter; 3. Low weight-The weight is only 1/4 that of a steel bar with the same diameter, therefore, the labor intensity is greatly reduced, and the transportation cost is reduced at the same time 5. Anti-static-It has no electrical conductivity, and no sparks will be produced when being cut, it's particularly suitable for high gas zones; 6. Non-flammable-It's non-flammable and has high thermal isolation; 7. Culpability-It avoids damages to cutter heads, and does not delay excavation 8. Save cost-Use this material as reinforcing bars for road and bridge, could reduce secondary repair cost. Material: 100% glass fiber and epoxy Surface: all thread Diameter: 3-40 mm Tensile strength: 780-1200Mpa Density: 1.9-2.1 g/cm3 E-Modulus: >45 gpa
Alloy Steel plates and round bars hot rolled and forged cold work tool steel machined and peeled and grinded alloy steel round bar Grade: 4130 4140 4145 4150 5140 8620 4340 52100 SCM420 42CrMo4 Standard: AISI, ASTM, BS, DIN, GB, JIS Technique: Forged Process: EAF+LF+VD Delivery time: 60~70 days Packing: Standard export packing
We sell F51 bars,billets, UNS S31803 duplex stainless steel seamless pipes,tubes,and we also produce F60,S2205,SAF2205,F61,S32500,F53,S32750,F55,S32760 pipes,tubes
We supply UNS N06250 forged,forging steel round bars,slabs and forming products seamless pipes,tubes,welded tubings,plates,forged flanges,butt welded fittings from china ASTM,ASME standards UNS N06250 forged,forging steel round bars,slabs and forming products seamless pipes,tubes,welded tubings,plates,forged flanges,butt welded fittings from china
Section steel: 1. Hot rolled i-beam Size: 8#-63# ( japan, europe standard ) Material: q235, q345 2. Hot rolled channel steel Size: 5#-40# ( japan, europe standard ) Material: q235, q345 3. Hot rolled angle bar Size: 20*20mm-200*200mm, 45*30-200*125 Material: q235, q345 4. Hot rolled h-beam Size: 100*50-800*300m Material: q235, q345 5. Hot rolled flat bar, chord plate, galvanized flat bar Size: 12mm-300mm Material: q235, q345, 60simn, 65mn 6. Ledge steel Specification: d15, m15, m18, e19, m22 Material: m540 7. Mining i-beam Specification: 9#, 10#, 11# 8. U-blacket steel Specification: 25u, 29u, 36u Material: 20mnk 9. Hot rolled square steel Size: 10*10mm-80*80mm Material: q235, q345, 10-45# as well as various alloy steel Standard export seaworthy packing
china coal 0001 Introduction of GB Standard Steel H Beam Hot rolled H-beam, h beam Grade: Q235B, SS400, Q235, Q345, Q345B, ST37-2, A36, S235JRG1 Technique: Hot Rolled, Welded We supply high quality H-beam steel with reasonable price. Including Chinese standard, Japanese standard and so on. Material: SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc. Length: 6meter, 9meter, 12meter Parameter of GB Standard Steel H Beam Hot Rolled H-beam GB/T11263-1998 SIZE SECTION DIMENSIONS (MM) KG/M H B t1 t2 r 100X100 100 100 6 8 10 17.2 125X125 125 125 6.5 9 10 23.8 150X100 148 100 6 9 8 21.4 150X150 150 150 7 10 11 31.9 175X175 175 175 7.5 11 13 40.2 200X150 194 150 6 9 13 31.2 200X100 198 99 4.5 7 8 18.5 200X100 200 100 5.5 8 11 21.7 200X200 200 200 8 12 13 50.5 250X175 244 175 7 11 16 44.1 250X125 248 124 5 8 8 25.8 250X125 250 125 6 9 12 29.7 250X250 250 250 9 14 16 72.4 250X250 250 255 14 14 16 82.2 300X200 294 200 8 12 18 57.3
china coal 0001 Introduction of 50kg Railway Heavy Steel Rail U71Mn Steel Rail for Raileay Nominal weight per meter rail is greater than 30 kg, are heavy rail, heavy rail is divided into two general rail and crane rails. General rail means laying railway lines, dedicated lines, curves and tunnels by rail. Among them, the standard gauge length of 12.50 m and 25.00 m are two, laying rails bend curve, shorter length, there are 12.46 m, 12.42 m and 24.96 m, 24.92 m, are generally rail specifications for 38,43,45,50 , 60 (kg / m). Parameter of 50kg Railway Heavy Steel Rail U71Mn Steel Rail for Railway Model Head width Rail height Web Thickness Bottom Width Weight Material Rail length 38kg/m 68mm 134mm 13mm 114mm 38.733 kg/m U71Mn/U71 /45Mn 12,12.5m 43kg/m 70mm 140mm 14.5mm 114mm 44.653 kg/m U71Mn/U71 /45Mn 12,12.5m 50kg/m 70mm 152mm 15.5mm 132mm 51.514 kg/m U71Mn/U71 /45Mn 12,12.5m
china coal 0001 Introduction of 43kg Railway Heavy Steel Rail Normally, steel rail is devide into light rail heavy rail and crane rail . The nominal weight of light rails is 30kg or less. Our light rails are available in various specs. and are mainly used for laying temporary hauling tracks in forested areas, factories, mines, and construction areas. Heavy steel rail is the main component of railroad track.Heavy steel rail's function is to lead the locomotive wheels go forward, bear huge pressure of the wheels, and transfer to the sleeper. Heavy steel rail must provide wheels with continuous and smooth and the least resistance of the rolling surface. Besides all kinds of international standard steel and iron products, we also can develop and manufacture various non-standard products. Here are the types of steel rails: It is including light rails, heavy rails, crane rails and rail fittings. 1)Light rails: 9kg, 12kg, 15kg, 18kg, 22kg, 24kg, 30kg Steel grade: 55Q / Q235 Length: 6m~12m Executive standard: refer to GB11264-89?¦ 2)Heavy rails: 38kg, 43kg, 50kg, 60kg Steel grade: U71Mn / 50Mn and so on Length: 12.5m Executive standard: refer to GB2585-81/QB In order to ensure better quality, our steel rails have to undergo many tests, including chemical composition test, tensile strength test, hardness test and the drop weight test. According to clients' demands, we can provid various specification rails with different materail/steel grade . Parameter of 43kg Railway Heavy Steel Rail Name of Commodity Specificaton Materials Standard of Products Theory Weight Length of Dimension(m) Packed in bundle with iron wire (pcs/bundle) Heavy Rail 38kg/m U71Mn/U71/45Mn GB2585-2007 Q/YYG002-2008 38.733 12,12.5 10 43kg/m U71Mn/U71/45Mn GB2585-2007 Q/YYG002-2008 44.653 10 50kg/m U71Mn/U71/45Mn GB2585-2007 Q/YYG002-2008 51.514 10
china coal 0001 38kg Heavy Railway Steel Rail Keywords:Heavy Rail, 60 Kg Rail. Standard Steel Rail, Railway Steel Rail, Railway Track, Railroad Track, Railroad Track For Sale, Railroad Rail Introduction of 38kg 43kg 50kg Heavy Railway Steel Rail Nominal weight per meter rail is greater than 30 kg, are heavy rail, heavy rail is divided into two general rail and crane rails. General rail means laying railway lines, dedicated lines, curves and tunnels by rail. Among them, the standard gauge length of 12.50 m and 25.00 m are two, laying rails bend curve, shorter length, there are 12.46 m, 12.42 m and 24.96 m, 24.92 m, are generally rail specifications for 38,43, 45, 50,60 (kg/m). Parameter of 38kg 43kg 50kg Heavy Railway Steel Rail Model Head width Rail height Web Thickness Bottom Width Weight Material Rail length 38kg/m 68mm 134mm 13mm 114mm 38.733 kg/m U71Mn/U71 /45Mn 12,12.5m 43kg/m 70mm 140mm 14.5mm 114mm 44.653 kg/m U71Mn/U71 /45Mn 12,12.5m 50kg/m 70mm 152mm 15.5mm 132mm 51.514 kg/m U71Mn/U71 /45Mn 12,12.5m
