Carbon Steel

Features of Carbon Steel

• 1  The carbon steel is defined by its main constituent alloy, carbon, which is found in the range of 0.12 – 0.2%.
   
  The higher the carbon percentage of the carbon steel, the harder and stronger the steel can become through heat treating. However, as the carbon percentage rises, the carbon steel also becomes less ductile. Higher carbon percentages also reduce weld-ability and lower melting temperature.
   
  
  
  
  Low carbon steel is hard but not brittle, and typically used for things like chain link fences, railings and gates. It is hard enough to serve its purpose, but flexible enough to be worked easily.
   
  Steel with medium carbon content is the most commonly used in construction and for structural purposes. It uses in the building of railways and bridges, large automotive parts and ships, as well as home appliances such as washing machines and refrigerators.
   
  High carbon steel is the hardest, but also most brittle. It is mostly often used in manufacturing where strength is the most desirable attribute. Ideal for high tension wires and springs, as well as industrial components such as knives, punches, molds and other cutting tools.
   
  1045 Carbon Steel
  1045 is a medium carbon, medium tensile steel supplied as forged or normalized.
  AISI 1045 CARBON STEEL ROUND BAR
  ASTM AISI 1045 Steel is a medium carbon, medium tensile steel supplied as hot rolled, forged or normalized. Dongguan Teamwise Metal supply 1045 round bar, plate, steel rods, steel bars, hexagonal bar, flat bar, square, block, pipe etc.
   
   
  1020 Mild Steel
  1020 mild steel round bar and steel plate
  AISI 1020 Steel is a mild carbon steel, 1020 steel belongs to the high quality low carbon steel, cold extrusion, carburizing and hardening steel. The low steel strength, toughness, plasticity and weldability are good. Tensile strength of 253-500 Mpa, the elongation is 24% or higher.
  Dongguan Teamwise Metal supply 1020 round bar, plate, steel rods, steel bars, hexagonal bar, flat bar, square, block, pipe etc.
  Contact our experienced sales team to help you with your 1020 Carbon steel questions by Email or Telephone, we will feedback soonest in 24 hours.
   
  S235JR steel
  S235JR steel stockholders and suppliers from China. S235JR steel is a mild steel, its carbon composition below 2%. The S235JR Mild steel have very good welding performance. For S235JR, we supply the steel plate, steel round bar, steel hexagonal bar, flat bar, square bar and pipe.
   
  DIN EN S235JR Mild Steel is European standard of alloy structural steel, It is equivalent with the Chinese standard of GB Q235B.
  Related Specifications DIN EN 10025-1998
  Chemical composition
  C(％) ≤0.20 Si(％) ~      Mn(％) ≤1.40
  P(％) ≤0.045 S(％) ≤0.45  N(%) ≤0.009
  Form of Supply
  DIN EN S235JR Mild steel, we can supply the round bar, flat bar, plate, hexagonal and square block. Round bar can be sawn to your required lengths as one offs or multiple cut pieces. Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.
  Applications
  S235JR mild steel is a low carbon structural steel, it be used for welding, bolt connection, riveting structure. as buildings, bridges, ships, vehicle structure, manufacturing a variety of tools and cutters, mold and measuring tool etc.
  
  ■ CARBON STEEL & OTHERS碳钢及其他模具钢
  
  

  编号 NO:	近似钢号					用途	Application
  	中国GB	美国AISI	德国DIN	日本JIS	外企 Foreign Enterprise
  1	45	1045	1.1191	S45C		普通机械零件	Formachine parts
  2	50	1050	1.1213	S50C		普通机械零件	Formachine parts
  3	5CrW2MoSiV	S1				耐冲击刃具、零件	For impact-resisting tool.part
  4	5Cr3Mo2SiV	S7				耐冲击刃具、零件	For impact-resisting tool.part
  5	Q235B	A36	S235JR	SS400		普通机械零件、建筑、螺栓、螺母等	For various machine parts,construction,bolts,nuts ect
  6	Q345B	—	S355JR	SM490		用于桥梁、建筑、船舶、锅炉、压力容器等	For bridge,construction,ship,boiler,pressure vesse letc.

  
  
  

  编号 NO:	碳钢化学成份(% ) Chemical composition											退火状态 硬度≤ Annealed  Hardness	热处理温度(℃) Heal treatment temp		回火硬度 HRC Secondary hardness
  	C	Si	Mn	P≤	S≤	Cr	W	Mo	V				淬火  Hardening	回火 Tempering
  1	0.45	0.25	0.80	0.030	0.030	0.02	—	—	—			215	840	600	56
  2	0.50	0.25	0.80	0.030	0.030	0.02	—	—	—			215	840	600	56
  3	0.48	0.45	0.30	0.030	0.030	1.40	1.90	0.20	0.20			229	950	200	56
  4	0.50	0.65	0.60	0.030	0.030	3.20	—	1.50	1.50			229	950	200	56-58
  5	0.18	0.30	1.20	0.035	0.030	0.80	—	—	—			150	—	—	—
  6	0.20	0.50	1.30	0.030	0.030	0.80	—	—	—			150	—	—	—