DIN 17222 55Si7 Steel Plate, DIN 55Si7 Spring Steel

Henan BEBON international co.,ltd

DIN 17222 55Si7 steel plate, DIN 55Si7 spring steel

DIN 17222 55Si7

Spring steel DIN 17222 55Si7 main features and application

Spring steel DIN 17222 55Si7 is a kind of pre-hardened material well suited for fabrication requiring shaping by blanking, bending, drawing, extrusion and swaging. Spring steel DIN 17222 55Si7 allows for closer dimensional tolerances and improved finish and available in several grades. Grade selection is important when considering higher levels of wear resistance. DIN 17222 55Si7 spring steel has higher strength and elastic limit and higher relaxation ability,good temper resistance.mainly used for the production of spiral spring, butterfly spring, air seal spring,which work under less than 250 degrees, high pressure, deformation load conditions.

Equivalent table of spring steel DIN 17222 55Si7 under different standard

TOCT 14959 DIN 17222 GB/T 1222 NF A35-571

55C2T 55Si7 55Si2Mn 55SC7

Spring steel DIN 17222 55Si7 chemical composition data:(% in mass)

C Si Mn Cr p S Ni Cu

0.52-0.60 1.50-2.00 0.60-0.90 ≤0.35 ≤0.035 ≤0.035 ≤0.35 ≤0.25

Spring steel DIN 17222 55Si7 mechanical property and delivery condition.

Mechanical property Delivery Hardness Product Type Delivery Condition Rm Rel A11 Z HB Sample Mpa Mpa % %

Hot rolled round bar/square Hot rolled ≥ ≥ ≥ ≥ Q+T Hot rolled 302 bar Cold drawing+hot

Bebon steel —— The most professional exporter on weathering resistant steel Tel:0086-371-86151527 E-mail:[email protected] Fax: 0086-371-86011881 Web:http://www.shipbuilding-steel.com MSN:[email protected] http://www.steel-plate-sheet.com Skype：bebonchina http://www.bebonchina.com Oficina Dir: 2801 B# Intermational enteprise center Zhengzhou city in China. Henan BEBON international co.,ltd Forged round bar/square bar Hot rolled 1270 1180 6 30 processing 321 Hot rolled strips Hot rolled

Cold drawing round bar Hot processing 1270 1180 6 30 - -

Hot rolled thin plate Hot rolled 950 - 12 - - -

T=tempering;Q=quenching;QT=globurizing;Y=chilling

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