Q235B steel flat for construction with good

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Product Description:

Spring Steel can be divided into two types. One is carbon spring steel, and other one is alloy spring steel.

Alloy spring steel is based on carbon spring steel, by adding one or more alloying elements to improve the mechanical properties, hardenability and other properties to meet the requirement for manufacturing all kinds of spring steel.

 

Specification of Flat Spring Steel:

-Material: 55Si2Mn

-Production: Hot rolled or cold rolled

-Standard: GB/T 1222-1984

-Type: Spring Steel

-Alloy or no: Alloy

 

Chemical Composition:

C

Si

Mn

S

0.52~0.6

1.500~2.00

0.60~0.90

≤0.035

P

Cr

Ni

Cu

≤0.035

≤0.35

≤0.35

≤0.25

 

Mechanical Properties:

-Tensile Strength σb (MPa): ≥1274(130)

-Yield Strength σs (MPa): ≥1176(120)

-Elongation δ10(%): ≥6

-Percentage reduction of area: ψ (%): ≥30

-Hardness:

1, Hot rolled, ≤302HB

2, Cold drawn + Heat treatment: ≤321HB

 

Usage/Applications of Flat Spring Steel:

-Elements Si and Mn improve elasticity strength, hardenability, and the ratio of yield point and tensile strength. but the decarburization tendency is a little large,

-55Si2Mn Spring Steel can be used as vibration damper leaf spring and spiral spring of cars and tractors.

-Heat-resisting spring below 250 degrees.

 

Packaging & Delivery of Flat Spring Steel:

-Packing Detail: The products can be packed in bundles by steel wires.

-Marks:

1, Tag marks: the tag marks will be tied up to each bundle of the products. The information is usually including supplier’s logo and name, product name, made in China, products’ specifications, the painted color and other information requested by customers.

2, Color marks: we will paint both ends of the bundles of these products to make sure that they are more evident. It’s will be more convenient for the customers to distinguish them at the destination port.

-Delivery Detail:

1, Delivery time: 30~45 working days after receive buyer’s T.T. or L/C.

2, Delivery status should be written in the contract. (Heat treatment or no)

 

Payment:

-Invoicing on theoretical weight or actual weight as customer’s request.

-FOB, CFR or CIF.

-Regular terms of payment:

1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L. 100% payment before shipment.

2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L. 100% payment before shipment.

3, Negotiable.

Q235B steel flat for construction with good

Q235B steel flat for construction with good

Q235B steel flat for construction with good

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Q:Is the earthing electrode made of galvanized flat steel or bare copper wire?
The earthing device is divided into horizontal grounding and vertical grounding. The horizontal earthing body generally adopts hot-dip galvanized flat steel or hot galvanized round steel; the vertical grounding electrode adopts hot-dip galvanized steel, angle steel, steel tube, round steel and other materials.
Q:Galvanized steel flat welding occurs after the material itself crack.
Reheat cracking: when welding in the heat affected zone near the fusion County Office is heated to 1200 DEG C, the heat affected zone of grain boundary of vanadium and molybdenum and titanium carbide in austenite when welding; postweld heat treatment of re heating, the heating temperature in the range of 500 degrees to 700 degrees Celsius in the welding, there is a big the welding residual stress in the joints, stress exceeds the plastic heat affected zone near the fusion line of the metal, will produce crack;
Q:Between the MEB and the power distribution cabinet with wire with the flat and why
Even if there is no condition to make the ring flat steel belt, the ground terminal box is usually reserved for the access pipe. If multiple power line is recommended to see 500 2.7. central area substation, but also set the MEB based, attracted special line, and the reinforced layer access line; flat steel (copper) can save you, ha ha
Q:Galvanized flat steel how much is one meter?
The price of galvanized flat steel is about 6200, so the price is 40 * 4 * 0.00785 * 1.06 * 6.2=8.3 yuan per meterGalvanized pipe price is about 6500, DN25:2.57 * 6.5=16.7 yuan / meter, DN32:3.32 * 6.5=21.58 yuan / meterAngle steel price 5000, 4# angle steel: 2.422 * 5=12.1 yuan / meter
Q:Earthing flat steel and earthing main line
Grounding flat ground belongs to the material, the grounding line belongs to the grounding line, grounding flat steel used for grounding grid, the grounding line is also one of the flat ground, for connecting the grounding grid, the grounding grid extends to the metal shell of the substation ground of all electrical equipment, and the grounding grid connected together.
Q:8 what is the flat density?
8 mm flat steel density is about 7.85 g / cm.
Q:What's the difference between hot rolled flat steel and flat rolling tool flat steel?
Hot rolled flat rolled hot rolled flat steel is a general purpose rectangular cross rolled strip. The specifications are expressed in millimeters of thickness * width, flat steel can be finished steel, used for components, ladders, bridges and fences, etc..
Q:What does QB stand for in Q235B flat steel? What's the difference between Q235B and Q235A?
There are also some subtle differences between Q235A and Q235B:1, chemical composition: Q235A:C:0.14~0.22:Mn:0.30~0.65; S:0.050;2, mechanical properties: tensile test without distinction, impact test A do not do, Q235B I-beam, Q235B angle steel, Q235B channel steel, Q235BH steel, Q235B flat steel B do 20 degree impact test, V type impact power (longitudinal) J no less than 27.
Q:Where can I buy ground level bending machine?
When lap welding is adopted, the welding length is as follows: 1. Galvanized steel bar is not less than 2 times its width, no less than three surface welding. When the width of flat steel is different, the length of lap should be wide. Before laying, the flat steel should be adjusted straight, simmer, bend not to die, straight line should not be obvious bending, and should stand upright. 2. The length of galvanized round steel shall be no less than 6 times of its diameter, and shall be welded on both sides (when the diameter is different, the lap length shall be of big diameter).
Q:What is flat steel, please?
Steel strip steel rectangular and with pure edge of cold drawn steel, stainless steel flat steel. Stainless steel flat can be semi-finished steel. There are cold drawn polished stainless steel flat and hot-rolled acid white and sand blasting stainless steel flat. The raw material for producing stainless steel flat bar is stainless steel square billet, and the finished stainless steel flat bar is produced by hot rolling, normalizing or hot rolling, pickling (or sand blasting), cold drawing and polishing. The two sides are equal in width. The specifications are expressed in millimeters of edge width * * edge thickness. Such as 30 * 3, that is, width of 30 mm edge, 3 mm thick edge of stainless steel flat side.

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