JIS G3521 SWRH52B Hard Drawn Spring Steel Wire

Grade : SWRH52B 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.

SWRH52B Hard Drawn Spring Steel Wire Chemical composition

Supplying Size:

Diameter:0.01-8mm

Our Advantage

1. Stable linearity, good formability. Uniform and beautiful surface condition.

2. High plasticity and good fatigue resistance. And we provide Self-Inspection Reports and    Raw-Material Test Certificates.

3. Professional anti-rust protective packaging. On time delivery, competitive price.

4. Large stock available, no MOQ requirement.

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

Spring wire is a product with very specific technology. It has a strong structure and a good balance of flexibility and tensile strength. According to different surface treatments, spring wire can be divided into: Hot-dipped galvanized wire, electro-galvanized spring wire and PVC coated spring wire. In addition, we also provide stainless steel spring. In the mattress industry, spring wire is used to manufacture springs and hoops. In the Springs' industry, spring wire is used to manufacture mechanical springs. For other usages, our products also have gained a good reputation from the appliance as controlling cable or connecting wire for automobile industry and hard needle.

Spring steel is an alloy that can withstand intense twisting and bending without becoming distorted. It is resilient and pliable, yet durable, which is perfect for a general use steel. Products made with this alloy can be bent, extended, compressed, or twisted, yet they will return to their original shape. This characteristic is commonly known as high yield strength. Spring steel’s high yield strength is achieved through one of two manufacturing processes: (1) Hardening by heat treatment and (2) Work hardening. There are many different types of spring steel. They may be identified by their steel grade, which is determined by a material’s chemical, physical, and environmental properties. They may also be identified by their application, such as compression, torsion, or tension.

SWRH52B Hard Drawn 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

SWRH52B Hard Drawn 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

Hard-drawn springs wire are affordable, flexible, and reliable carbon steel wire designed to withstand static loads and consistent stress. Also called cold-drawn spring steel, this wire type is manufactured to a specific diameter without additional tempering or processing. Improve your application with hard-drawn wire from Fushun. 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.

SWRH52B Hard Drawn 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

SWRH52B Hard Drawn 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.