Sga Rolls With Stable Quality

Steel billets result from the second stage of the steel production process. They are hot-rolled or forged from an ingot or strand cast.

steel billets from 45 x 45 mm to 150x150 mm, and round steel billets from 120 mm to 270 mm in diameter. Length : Specifiable up to 12 m Quality : In various internationally well known standards including afnor (nf), aisi, astm, bs, din, euronorm, gost, jis, iso, sae, si, ts, uni, etc. (eg. Astm a 615 gr 40 or 60, bst 420 s, din 488, st 37.2 din 17100, nfa 35015 and 16, bs 4449 (gr 250 or 460), jis g 3112 (sd 30, 35, 40), si 739 s 400, si 739 s 400 w, feb 44 k, 3 sp/ps or 5 sp/ps gost 380 88, 35 gs or 25 g2s, gost 5781-82, etc) Other grades available according to customer's request

Galvanized GI Steel Rolls & Plates & Coils
Whatâ??s the difference between galvanized GI steel coils and plates?

I. Definition
Galvanized GI Steel coil and galvanized sheet are galvanized steel. The galvanized coil is a continuous hot dip galvanized coil in the production process. While galvanized sheet is a single hot dip galvanized sheet in the production process.

2. the production process
The production process of galvanized coil and galvanized sheet is different.

The production process of galvanized coil generally includes multiple processes such as coil heating, hot dip galvanizing and shearing into coil.

The galvanized sheet is generally the zinc alloy coating through the hot dip technology directly coated to the surface of the steel plate.

So the production process is relatively simple, the process difficulty is relatively low.

3. material thickness
The material thickness of galvanized coil and galvanized sheet is also slightly different.

Generally speaking, the thickness of galvanized coil is relatively thin. We mainly use it for the production of cold rolled, coating and other thin steel products.

The thickness of galvanized sheet is relatively thick. We mainly use it in the manufacture of glass fiber reinforced plastic, automotive panels, roof panels and other steel products requiring strength and corrosion resistance.

4. Advantages and Disadvantages
Both galvanized coil and galvanized sheet have their own advantages and disadvantages.

The production cycle of galvanized coil is short, the process is simple, and it is suitable for the production of low thickness and high precision steel products.

The galvanized sheet has the advantage of hardness, corrosion resistance, wear resistance and other multiple properties.

However, the production process of galvanized sheet is time-consuming and laborious, and the production cost is relatively high.

5. Application fields
The application areas of galvanized coil and galvanized sheet are also different.

Galvanized coil is usually used in the production of home appliances, building materials, auto parts, pipes and other high-demand steel products.

The galvanized sheet is mainly used in automobile manufacturing, construction engineering, petroleum, chemical and other industries.

In addition, because of the good corrosion resistance of galvanized sheet, it is also widely used in Marine engineering, railway, bridge and other fields.

We produce and sell steel pipes, carbon steel pipe, GI pipe, carbon steel pipe , SS pipes and Spiral steel pipe in long term.
Our factory have plenty of steel in stock and customers can find the right products.

GI pipe Q195, Q235, Q345,
Stainless Steel (SS pipe) 201, 304, 316, 316L
Seamless Pipe 42crmo, 20, 35, 45
OD Size 12mm, 20mm, 25mm, 40mm, 50mm, 10mm-600mm

Buyers please send us steel pipe specificationss on OD size, wall thickness, steel grades and quantity to quote cost.

Spring steel strip
Steel grade
65Mn,1065,SAE1055,1045,CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1,50CrV4, 51CrV4, 60Si2Mn, etc
Thickness 0.08-4.0mm
Width 3-400mm
Hardness <200HV, 200-300HV, 300-550HV
Edge slit edge; both rounded; one side round, one side slit; square etc
Surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical propety Tensile strength: 450-1850N/mm2

Spring steel strip
Steel grade
65Mn,1065,SAE1055,1045,CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1,50CrV4, 51CrV4, 60Si2Mn, etc
Thickness 0.08-4.0mm
Width 3-400mm
Hardness <200HV, 200-300HV, 300-550HV
Edge slit edge; both rounded; one side round, one side slit; square etc
Surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical propety Tensile strength: 450-1850N/mm2

Spring steel strip
Steel grade
65Mn,1065,SAE1055,1045,CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1,50CrV4, 51CrV4, 60Si2Mn, etc
Thickness 0.08-4.0mm
Width 3-400mm
Hardness <200HV, 200-300HV, 300-550HV
Edge slit edge; both rounded; one side round, one side slit; square etc
Surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical propety Tensile strength: 450-1850N/mm2

ss 301 steel strip
wide 10mm
thickness 0.5mm
hardness 1300-1400 mpa
sharpend from one side

K 67 SPRING STEELHARDNESS 43HRCTHICKNESS : 2.5MMQTY:3.000 U
Standard:AiSi
Standard:ASTM
Standard:DIN
Standard: hard GB
Standard:JIS
Place of Origin:CN;GUA
Technique:Cold Rolled
Surface Treatment:Polished
Steel Grade:Ck67ck70ck75 Sae1070 Sae1074
Application:Industry
Width:8-300mm
Length:Customer\'s Request
Product Name:High Carbon Steel Strip Spring
Surface:Heat treatment
Grade:ck60,ck67,ck70,ck75,C75cr1 SAE 1060, SAE 1065, SAE 1070, SAE 1075
Color:Blue, polished blue, polished bright
Material:carbon steel coil
Edge:Round, slit, square
Certificate:ISO9001:2008/SGS/BV
Thickness:0.15-2.5mm
Hardness:<20hrc, 20-30hrc, 30-55hrc