JIS G3521 SWRH67A High Carbon Spring Steel Wire

SWRH67A High Carbon Spring Steel Wire Chemical composition

Grade : SWRH67A Classification: Structural steel High carbon steel Standards: JIS G 3506 : High carbon steel wire rods Applications: High carbon steel wire rods to be used for the manufacture of hard drawn steel wires,oil tempered steel wires, hard drawn steel wires for prestressed concrete, galvanized wire strands, wipe ropes, etc.

SWRH67A High Carbon Spring Steel Wire Form of delivery

The wire shall be delivered in unit packages of a coil (singles, carriers or formers), spools, spoolless cores or as straight lengths. Unless otherwise agreed at the time of ordering, the form of delivery will be coils; straight lengths shall be supplied in bundles.

SWRH67A High Carbon Spring Steel Wire Coating and surface finish

The spring wire may be supplied phosphate coated (ph) either dry drawn or wet drawn, copper coated (cu), zinc (Z) or zinc/aluminium (ZA) coated.

Other coatings, considered as special, can be agreed between the purchaser and the supplier. If no specific surface finish is specified, the type of finish shall be at the manufacturers discretion. In addition the wire can be ordered with an oiled surface for all surface finishes.

SWRH67A High Carbon Spring Steel Wire Surface treatment

The surface for spring wire generally has a coating for facilitating wire drawing and spring forming.

Exceptionally the material will be uncoated. Common surface coatings are:

1 bright (b): without any special coating: standard borax coating or lime-coating may be applied;

2 phosphate coated (ph): the wire has been treated in a solution to form a metal-phosphate layer on the surface;

3 reddish (rd): the surface is covered with a thin copper, generally a conversion coating;

4 copper plated (cu): the surface is covered with a (uniform) thick copper coating;

5 galvanised (Z): the surface is covered with a zinc coating;

6 zinc/aluminium coated (ZA): the surface is covered with a Zn 95/Al 5 coating;

7 yellow coated (y): this applies only to liquor finished products whereby a mixture of tin salts and copper salts are added at the liquor finishing;

8 white (liquor finished) (wh): this applies to liquor finished products whereby tin salts are added for liquor finishing

SWRH67A High Carbon Spring Steel Wire Surface quality

The surface of the wire shall be smooth and as free as possible from grooves, tears, rust and other surface defects, which have a noticeable adverse effect on the application of the wire.

In the case of zinc or zinc/aluminium coated spring wire the amount of zinc or zinc/aluminium on the wire surface shall satisfy the minimum values specified

SWRH67A High Carbon Spring Steel Wire Out of roundness

The difference between the maximum and minimum diameter of the wire at the same cross section shall not be more than 50 % of the total permissible deviation specified

High carbon steel springs are very popular due to their econimcal, strong, and durable nature. The Fushun is equipped with the knowledge and expertise to facilitate in your selection of the perfect high carbon steel springs for your project, customizing the springs to your exact specifications. Fushun Wire Spring manufactures custom springs using many types of high carbon steel wire, including oil tempered steel wire. We specialize in providing each client with a custom spring that matches your exact application requirements, leveraging over 85 years of experience producing springs for industrial applications. Our staff is available to assist you in selecting the best high carbon steel for your application and will manufacture your springs to specifications and the highest quality standards. You can be assured that your springs will be delivered to you fast and ready for your production line. High carbon spring steel wires are the most popular steel wires used when manufacturing springs. They are economical, strong, and durable.

Information to be supplied by the purchaser

The purchaser shall clearly state in his enquiry or order the product and following information:

a) the desired quantity;

b) the term spring steel wire or straightened and cut lengths;

c) the number of this European standard: JIS G3521;

d) the steel grade

e) the nominal wire diameter selected from Table 3 and for cut length the length and the length tolerance class

f) the coating indicated by its abbreviation and surface finish

g) the form of delivery and unit mass

h) the type of inspection document;

i) any particular agreement

SWRH67A High Carbon Spring Steel Wire Manufacture Process

wire drawn to size by cold deformation of a starting material that has been subjected to a thermal treatment of patenting, giving structure suitable for subsequent rolling or drawing.

Patenting HEAT TREATMENT consisting of AUSTENITIZING followed by COOLING under conditions suitable for producing the appropriate structures for subsequent wire-drawing or rolling. The medium in which the PATENTING takes place should be specified, for example air, lead bath etc.

High-carbon spring steels are the most commonly used of all springs materials. They will meet your spring steel material specification in preference to others, despite being the least expensive. High Carbon spring wires are readily available, easily worked, and most popular. These materials are not satisfactory for high or low temperatures or for shock or impact loading.We're ISO 9001:2008-certified spring manufacturer dedicated to supplying our customers with high-performance spring products on time and at a competitive price. Hard-drawn spring steel wire, or HDMB spring wire, is manufactured using a cold-drawing process. During this activity, the wire being worked is coated in oil and pulled through one or more dies to reduce the wire width. One of the most economical and versatile steel wire types, hard-drawn wire is perfect for a range of general-purpose applications.

SWRH67A High Carbon Spring Steel Wire Marking and packaging

Each unit shall be properly marked and identified so as to permit traceability and reference to the inspection documents.

The labels shall withstand normal handling and contact with oil; they shall show the information according to JIS G3521. Other information shall be the subject of an arrangement between the parties.

Wire shipments shall be suitably protected against mechanical damage and/or contamination during transport.