Hunan Fushun Metal Co., Ltd. |
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AISI 304 stainless steel (X5CrNi18-10) is a conventional austenitic
stainless steel with good resistance to atmospheric, organic and
inorganic chemicals. This material is widely used due to its
excellent intergranular corrosion resistance, good cold
deformability, good deep drawability and weldability.
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
Steel designation | % by mass | ||||||||||
Name | Number | C | SI | Mn | P max. | S max. | N | Cr | Mo | Ni | Others |
Austenitic steels | |||||||||||
AISI | 304 | max. 0,07 | max. 1,00 | max. 2,00 | 0,045 | 0,015 | max. 0,11 | 17,5 to 19,5 | 8,0 to 10,5 |
Designation | Tensile strength MPa, |
+C1000 | 1 000 to 1 150 |
+C1150 | 1 150 to 1 300 |
+C1300 | 1 300 to 1 500 |
+C1500 | 1 500 to 1 700 |
+C1700 | 1 700 to 1 900 |
+C1900 | 1 900to2 200 |
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.
Stainless spring steels Strips are classified as austenitic
stainless steel. Due to their good balance of mechanical
properties, they are the most widely used type of steel. They can
be used in a variety of environments without being plated to
prevent rust. In addition, as it is also possible to increase their
hardness by rolling, they can be used as spring parts.
In annealed and lightly rolled materials, they exhibit a large
degree of elongation, and can withstand complex processing. Springs
are used in plenty of applications in the present-day world. Even
so, only a few people have a nodding acquaintance with the brass
tracks of spring manufacturing and the different qualities needed
for various functions. While coiling steel into a spiral of desired
length and diameter is the primary and center-most stage of spring
fabrication, other treatments during and after the procedure
determine the quality of the product that reaches the consumer.
In the condition +C, strip shall be delivered with a bright surface
(2H), or a rough, matt surface
The following information shall be supplied by the purchaser at the
time of enquiry and order:
a) the quantity to be delivered;
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 304 1.4306 (X2CrNi19-11) and 1.4307 (X2CrNi18-9) are ultra-low
carbon versions of 1.4301. The purpose is to improve the corrosion
resistance after welding and prevent carbide precipitation caused
by stress relief for a long time.
Grade 304 is a standard "18/8" stainless. It is the most versatile
and most widely used stainless steel available, even though a wide
range of alternatives are available; and has excellent forming and
welding characteristics. The balanced austenitic structure of Grade
304 enables it to be severely deep drawn without intermediate
annealing. This means that this grade steel is dominant in the
manufacture of drawn stainless parts such as sinks, hollow-ware and
saucepans. For these applications, it is common to use special
"304DDQ" (Deep Drawing Quality) variants. Grade 304 can be readily
braked or roll-formed into a variety of components for applications
in the industrial, architectural, and transportation fields. It
also has outstanding welding characteristics. Post-weld annealing
is not required when welding thin sections.
SAE 304 stainless steel is the most common stainless steel. The
steel contains both chromium (between 18% and 20%) and nickel
(between 8% and 10.5%) metals as the main non-iron constituents. It
is an austenitic stainless steel. It is less electrically and
thermally conductive than carbon steel. It is magnetic, but less
magnetic than steel. It has a higher corrosion resistance than
regular steel and is widely used because of the ease in which it is
formed into various shapes.
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.
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.
Options
—any requirement concerning manufacturing process of the steel and
of the products
—any requirement concerning form of delivery
—any requirement concerning condition of the edges
—any requirement concerning special treatment conditions
—any requirement concerning special technological properties
—any requirement concerning surface finish
—any requirement concerning bending limit of strip differing
—any requirement concerning testing of internal soundness
—any requirement concerning additional specific testing
—any requirement concerning tensile testing for checking the
uniformity of tensile strength
—any requirement concerning determination of product analysis
—any requirement concerning carrying out of bending ability tests
—any requirement concerning tolerances on flatness, edge waviness
and edge camber
—any requirement concerning measurement of coil set including the
relevant values
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