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.
Specifications � grade: alloy steel � standard: aisi, astm, bs, din, gb, jis � od:10-500mm � thickness: max:800mm � width: 205mm~2300mm � length: 1000mm~6000mm � place of origin: china (mainland) � model number: 1.7220 / scm430 / 30crmo4 / 4130 ; 4140/42crmo4/1.7225; en24 34crnimo6 1.6582 4340. � application: mould steel � technique: forged � special use: mold steel , statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. � shape: round bars/flat bar/plate � technology: hot rolled/forged/clod d raw � heat treatment: annealing/q+t � surface treatment:black/peeling/polishing/machined � delivery condition: hot rolled or forged/ peeled or black surface/annealed or qt � customer's logo: available � test: sgs/ut100%/elements testing � certificate: iso/mill certificate � experience: ten years manufacturer experience
Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD:10-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340. · Application: Mould steel · Technique: Forged · Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. · Shape: Round bars/Flat bar/Plate · Technology: Hot Rolled/Forged/Clod Draw · Heat treatment: Annealing/Q+T · Surface treatment:Black/Peeling/Polishing/Machined · Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT · Customer's logo: Available · Test: SGS/UT100%/Elements testing · Certificate: ISO/Mill certificate · Experience: Ten years manufacturer experience
ASTM/AISI Standard Alloy Round Bar AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldability standpoint. Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD:10-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340. · Application: Mould steel · Technique: Forged · Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. · Shape: Round bars/Flat bar/Plate · Technology: Hot Rolled/Forged/Clod Draw · Heat treatment: Annealing/Q+T · Surface treatment:Black/Peeling/Polishing/Machined · Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT · Customer's logo: Available · Test: SGS/UT100%/Elements testing · Certificate: ISO/Mill certificate · Experience: Ten years manufacturer experience General Scope This grade is similar to 4140 in scope which has a higher carbon level giving 4130 an advantage when it comes to weldability, this weldability is achieved at the cost of through section hardenability. AISI 4130 steel is a low alloy steel that is used in structural designs that may be found in applications such as aircraft engine mounts or welded tubing. It is well known for its ease of welding and ability to harden in commercial applications. It is commonly referred to as chromium-molybdenum steel.
Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD:10-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340. · Application: Mould steel · Technique: Forged · Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. · Shape: Round bars/Flat bar/Plate · Technology: Hot Rolled/Forged/Clod Draw · Heat treatment: Annealing/Q+T · Surface treatment:Black/Peeling/Polishing/Machined · Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT · Customer's logo: Available · Test: SGS/UT100%/Elements testing · Certificate: ISO/Mill certificate · Experience: Ten years manufacturer experience
Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD:10-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340. · Application: Mould steel · Technique: Forged · Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. · Shape: Round bars/Flat bar/Plate · Technology: Hot Rolled/Forged/Clod Draw · Heat treatment: Annealing/Q+T · Surface treatment:Black/Peeling/Polishing/Machined · Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT · Customer's logo: Available · Test: SGS/UT100%/Elements testing · Certificate: ISO/Mill certificate · Experience: Ten years manufacturer experience Chemical composition Standard Number C Mn Si Cr Mo P S Ni GB 42CrMo 0.38~0.45 0.50~0.8 0.17~0.37 0.9~1.2 0.15~0.25 =0.035 =0.035 =0.3 AISI 4140 0.40~0.45 0.75~1.0 0.15~0.35 0.8~1.1 0.15~0.25 =0.035 =0.040 GB 40CrNiMoA 0.37~0.44 0.17~0.37 0.50~0.80 0.6~0.9 0.15~0.25 =0.035 =0.035 1.25~1.65 AISI 4340 0.38~0.43 0.15~0.35 0.60~0.80 0.7~0.9 0.20~0.30 =0.035 =0.040 1.65~2.00
Cold Rolled Steel Bar Cold rolled steel is produced by a rolling metal forming process where the metal stock passes through one or more pairs of rolls to provide uniformity and reduce the thickness of the metal. If the temperature of the metal being rolled is below its recrystallization temperature, the process is called cold rolling.
Rebar coupler, steel bar mechaanical splicing couplers, rebar thread rolling machine, steel rod cold forged upsetting machine, rebar coupler swaged grip machine and couplers.Export
steel products like steel bars.
Steels.
ERW pipes, structural square & rectangular tubes , galvanized pipes, casing tube, spiral welded pipes, hollow bar, round bar, smls, etc.
Features: 1) diameter:12-75mm, 9m, q215, q235 2) q215: A) c: 015 (max.) B) si: 0.60 (max.) C) mn: 0.30 (max.) D) p: 0.045 (max.) 3) q235 (jis g3101 ss400): A) c: 0.12-0.22 B) si: 0.30-0.70 C) mn: 0.30 (max.) D) p: 0.045 (max.)
Steel material like billet, wire rod, angle bar, channel bar, h-beams, HRC, GI, PPGI.Transportation and shipment
Steel products like hot rolled steel coil and plate, H-beam/angel/channel/pipe /flat bar etc., PPGL/GL, HR strip/GI strip.
Steel channel bars, flat bars, angles, steel sheets, steel pipe.
Alloy steel pipe, 4140 seamless pipe, 4130 seamless tube, 4140 round bar, 4130 round bar, chromoly steel tube, chromoly alloy pipes, chromoly tube.
ERW pipes, structural square & rectangular tubes, galvanized pipes, casing tube, spiral welded pipes, hollow bar, round bar, SMLS.Exporting
Steel pipes, coils, bars.
Structure steel, section steel, sheets, wire rod, like channel bar, angle bar, flat bar, coil.
