Henan friend Tak Metal Products Company Limited

OLD TEMPEREO CARBON STEEL SPRING WIRE

 Adapted to the general purpose spring, brake spring, in the upscale automobile clutch spring, shock absorber screw spring, belt tensioner pulley spring and manufacture of engine valve spring steel wire

Classification, designation and wire diameter range

Wire codes and steel grades corresponding relationship

Wire diameter range

   钢丝表面检验

     钢丝表面光滑，不应有对钢丝使用可能产生有害影响的划伤、锈蚀、折叠、结巴等缺陷，允许有最大深度不超过下表规定深

     度的缺陷。VD级、TD级钢丝不得有全脱碳，但允许有不大于d1.0%的部分半脱碳。

                                  表面缺陷允许的最大深度

热处理

卷簧后，弹簧应在380℃~420℃之间回火处理，以减轻表面应力，抛丸后应在250℃进行热压或消除应力处理。

交货状态

钢丝以线圈形式交货

                          河南富瑞德金属制品有限公司

 油淬火—回火弹簧钢丝

 适应于一般用途弹簧、刹车制动器弹簧、中高档汽车离合器弹簧、减震螺旋弹簧、皮带张紧轮弹簧及制造发动机气门弹簧的钢丝。 

  力学性能                            静态级、中疲劳级力学性能表（同盘强度不大于50MPa)

 高疲劳级力学性能表   (同盘强度不大于40MPa)                      河南富瑞德金属制品有限公司

油淬火—回火弹簧钢丝

适应于一般用途弹簧、刹车制动器弹簧、中高档汽车离合器弹簧、减震螺旋弹簧、皮带张紧轮弹簧以及制造发动机气门弹簧的钢丝。

The grades of spring steel is introduced

1、65#、70#

  Can get very high strength, hardness, yield ratio, but the hardenability of small, heat resistance is not good, bear the load and fatigue load capacity is low is widely used, but more for low working temperature of small springs or less important big spring.Such as automobile, tractors, railway vehicles and the general use of the machinery spring

2、65Mn

  ComPOSTTTION is simple, the hardenability and mechanical properties, and process performance than carbon steel, low price, large amount of.Applicable to the manufacture of a variety of small cross section flat spring, spring, spring, or making ring spring, damper and a clutch spring, brake spring.

3、60Si2MnA

  High strength, good elasticity; resistance to tempering stability; a main spring steel, uses a very wide.Suitable for manufacturing all kinds of springs, such as automobiles, locomotives, tractors, spring spiral spring, cylinder safety valve spring and some under high stress work important spring, serious abrasion of the spring.

4、50CrVA

  Because of containing a small amount of vanadium can improve flexibility, strength, yield ratio and sag resistance, grain refinement, reducing decarbonization tendency.Carbon content are smaller, plasticity, toughness good than other spring steel.Hardenability high, fatigue or applicable to various important helical spring, in particular is suitable to high job stress amplitude, fatigue properties require strict spring, such as valve, spring, spring nozzle cylinder ring, a safety valve spring

5、55SiCrA   SAE9254  SAE9254V

   High tensile strength and yield strength, and good processing performance, can withstand higher stress load, mainly used for turbine steam seal spring, engine valve spring, valve spring, a regulating spring, a condenser support spring

Heat treatment

Spring, spring should be at 380 ℃ ~420 ℃ tempering treatment,
In order to reduce the surface stress, shot blasting should be at 250 ℃ heat
Pressure or stress relieving treatment

Delivery condition

Wire coil in order to delivery

SHAPE \* MERGEFORMAT