DIN 17222 55Si7 50CrV4 spring steel flat and round bar

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.

 DIN 17222 55Si7 spring steel equivalent

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

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

Bozhong Groupl can offer you best quality DIN 17222 55Si7 steel plates,spring steel strips,DIN 17222 55Si7 spring steel coils,DIN 17222 55Si7 spring steel flat bar,DIN 17222 55Si7 spring steel rod coil,DIN 17222 55Si7 hot rolled steel thin plates,DIN 17222 55Si7 cold rolled spring steel belt,cold rolled spring steel strip,hot rolled round spring steel bar,hot rolled square spring steel bar,cold drawing spring steel,if you want to find Chinese spring steel supplier and manufacturer, you are welcomed to Bozhong.

Below inspection will be done in the production.

(1) ray detection---RT;

(2) ultrasonic testing---UT;

(3) Magnetic Particle Testing-MT;

(4) penetration testing-PT;

(5) eddy current flaw detection-ET

Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, ilitary, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.

l steel coil

l steel plate

l steel sheet

l steel bar/rod

    steel round bar

    steel flat bar

    steel square bar

l steel pipe/tube ( welded or seamless )

    steel round pipes

    steel square pipes

    steel welded tubes

    steel seamless tubes

l steel strip

l steel beam

l steel angle

l steel channel

l steel flange

l Steel wire

Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.

We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.

We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.

Special steel includes as below:

Boiler and pressure vessel steel

Pipeline steel

Bridge steel

Nuclear power steel

Structural steel

Die steel

High strength steel

Abrasion resistant steel

Weathering, corrosion resistant and fire resistant steel

High rise building steel

Shipbuilding and offshore engineering steel

Q: Are you a manufacturer or merely a trader?

A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?

A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?

A: We have ready stock for most of material grades in our warehouse. If the material don’t have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

Q: What is the payment term?

A: T/T or L/C.

Q: Can you provide a sample for our testing before confirming the order?

A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.

Q: Can we visit your company and factory?

A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.

Warmly welcome! Pick up your phone and Call us!

Send us the inquiry here!

We will reply you at the first time.