Product Specification

AISI 301 Stainless Spring Steel Strip

Material 301 (X10CrNi18-8 steel) is a European standard austenitic stainless steel with good corrosion resistance and weldability, as well as high strength and ductility, it is widely used in the production of high strength stainless steel springs. DIN EN 301 spring steel equivalent grades include AISI 301, JIS SUS301, GB 12Cr17Ni7.

Dimensions and tolerances
Thickness: 0.01 to 5 mm; Tolerances: +/- 0.008 to 0.11 mm
Width: 5 to 1219 mm; Tolerances: +/- 0.15 to 0.60
*accept nonstandard size, please contact with our sales.

Our Advantage
1. Precise thickness, uniform hardness. Bright surface, smooth edge.
2. High flatness of board surface, high performance after multiple bending.
3. No cracking after stamping, and the quality is stable. And we provide Self-Inspection Reports and Raw-Material Test Certificates.
4. Professional anti-rust protective packaging. On time delivery, competitive price.
5. Large stock available, no MOQ requirement

AISI 301 Stainless Strip Chemical composition

AISI 301 Stainless Strip Mechanical properties

AISI 301 Stainless Strip Delivery condition

This steel is only hardened by cold rolling. The modulus of elasticity, E , has a value of approximately 21 0 MPa, which cannot be increased by heat treatment.

AISI 301 Stainless Strip Surface

In the condition +C, strip shall be delivered with a bright surface (2H), or a rough, matt surface

Information to be supplied by the purchaser

The following information shall be supplied by the purchaser at the time of enquiry and order:

a) the quantity to be delivered;

• the designation of the product form (e.g. strip or cut length);
• the number of the dimensional standard (EN 10258);
• the dimensions and tolerances on thickness, width and length according to EN 10258 and, if applicable, letters denoting relevant special tolerances
• the internal coil diameter according to EN 10258
• the number of this European Standard (EN 10151);
• steel name or steel number
• the delivery condition
• the type of inspection document in accordance with EN 10204

AISI 301 Stainless Strip Internal soundness

The products shall be free from internal defects that could impair their application to a significant extent. Tests appropriate for an assessment of the internal characteristics may be agreed upon at the time of enquiry and order.

AISI 301 Stainless Strip Delivery form

Strip is usually supplied in coils. Thin strip may be wound on a supporting centre, made of steel, cardboard or other material, in order to avoid the collapse of the centre. Strip may also be supplied as a spool, in order to increase coil weight, whilst minimising coil outside diameter, in the latter case, any welds shall be clearly marked.

Alternatively, strip may be supplied in cut lengths. These may be in a box, or on a pallet, and perhaps strapped together in bundles.

Several coils, or bundles of cut lengths, may be assembled on a carrier.

Unless otherwise agreed at the time of enquiry and order, the choice of delivery form is left to the discretion of the manufacturer.

Unless otherwise agreed at the time of enquiry and order, cold-rolled strip for springs is delivered with the edges. By special agreement, strip can also be supplied with mill edges or with special edges, e.g. machined edges, deburred edges or edges dressed to produce a regular form, usually square or round.

Type 301 is a chromium nickel austenitic stainless steel capable of attaining high strengths and ductility by cold working. It is not hardenable by heat treatment. Type 301 is non-magnetic in the annealed condition and becomes increasingly magnetic with cold working.

Stainless steel grade 301 is usually supplied in the form of strips and wires, with a tensile strength of up to 1800 Mpa, to produce tempers ranging from 1/16 Hard to Full Hard. By subjecting grade 301 to controlled analysis it is capable of retaining sufficient ductility even in ½ hard conditions. This form of grade 301 may be used in aircraft, rail car components and architectural structures. Tempers of this grade, ranging from ¾ to full hard, may be used in applications requiring high wear resistance and spring features with simple form designs.

Cold rolled narrow strip of thicknesses up to and including 3 mm in rolled widths fess than 600 mm made from the stainless steel grades. The steels are used in the conditions for the production of springs and spring parts that are exposed to corrosive effects and sometimes slightly increased temperatures.

AISI 301 Stainless Strip Inspection and testing

Product analysis

Bending ability

Coil set

Extent of testing

Tensile and bending tests

Tolerances on shape

verification of the dimensions

visual examination of the surface quality of the products;

Tensile test without checking the uniformity of tensile strength

Tensile test for checking the uniformity of tensile strength