Spring Steel Coil/Strip/Sheet Sk70 Ck60 65mn Ss400 Q235 1060 Cold Rolled High Carbon Silver/Blue Spring Steel Strip Hot DIP Galvanized Steel Strip/Gi Slit Coil

• After-sales Service: Acceptable for Third-Party Testing
• Warranty: 10 Years
• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Certification: ISO, RoHS, IBR
• Surface Treatment: Polished
• Technique: Cold Rolled / Hot Rolled
• Model NO.: Sk70 Ck60 65Mn SS400 Q235 1060
• Application: Tool Steel Bar
• Edge: Slit Edge/Mill
• Stock: Stock
• Trade Term: Fob CIF EXW
• Delivery Time: 5-7days
• MOQ: 1 Ton
• Is It in Stock?: Stock
• Transport Package: Standard Shipping Packaging
• Specification: 0.3-5mm(Thickness)
• Origin: China
• HS Code: 7211290000
• Production Capacity: 6000 Tons/Month

Product Description

Black Annealed Cold Rolled Steel Coil is cold rolled steel coil goes to the heat treatment. The heat treatment process of recrystallizing cold-rolled coils, eliminating cold-rolling work hardening, and restoring plasticity to obtain the expected physical and physical-chemical properties. The process flow is generally divided into preliminary annealing, intermediate annealing and finish annealing. The annealing process varies with the purpose, and recrystallization annealing, incomplete annealing and complete annealing are often used. In order to obtain a strip with no oxidation and no decarburization on the surface, the strip is brightly annealed in a protective atmosphere.

 

Due to its wide applications and good machinability, it is a great investment project. DELONG Steel has its own factory to meet bulk orders timely. Also, we will offer a direct-sale wear resistant steel plate price to lower your cost. If you are interested, please contact us for details!

 

Name	Spring steel coil
Heat treatment	Quench 830 °C ± 20 °C, oil cooling; tempering 540 °C ± 50 °C
Mechanical properties	Tensile strength σb (MPa): ≥ 980 (100),Yield strength σs(MPa): ≥784(80),
	Elongation δ10(10%):≥8,Section shrinkage ψ(%):≥30,Hardness: Hot Rolling,
	≤302HB;Cold Pull+Heat Treatment,≤321HB.
Packing	Export standard packing or according to customers' requirement
Certificate	ISO9001:2008
Shipment	Within 5-7 workdays, 7-10 days when the quantity beyond 1000tons

Spring steel Slitting is widely used in various springs, mechanical accessories, electrical components and other fields. The main uses include:

Manufacturing Spring: Spring steel Slitting is an ideal material for manufacturing various types of springs, such as compression springs, tension springs, torsion springs, etc.

Manufacturing mechanical parts: Spring steel Slitting can be made into mechanical parts of various shapes and sizes, such as braces, couplings, transmission gears, etc.

Manufacturing electrical components: Spring steel Slitting can be made into various electrical components such as contact sheets, sockets, and electronic components.

Manufacture of furniture and outdoor products: Spring steel Slitting can be made into elastic structures in furniture and outdoor products, such as spring mattresses, clothes racks, swing doors, etc.

Manufacture of automobile and aircraft parts: Spring steel Slitting can be made into various automobile and aircraft parts that require high strength and corrosion resistance, such as braking systems, suspension systems, landing gear, etc.

Standard	AISI, ASTM, BS, DIN, GB, JIS
Material	S35C, S45C, S50C, S60C, S70C, S75C, 40Mn, 42Mn, 65Mn, CK67, SK4, SK5, SK85, SK7, T10A, SK551, 75Cr1, 50CrVa, 51CrV4, 30CrMo, 62Si2Mn, 60Si2Mn, Q235B, Q345B and etc.
Application	Building hardware tools;Leaf Spring,saw blade,clutch,shrapnel,auto manufacture,spring wire,etc.
Thickness	0.08mm-5.0mm or customized
Width	6.5mm-510mm or customized
Length	as per your requirement
Package	In bundle/coil, seaworthy package or as requested
Delivery Time	5-7 Days
Payment terms	T/T, 30% as deposit and 70% before shipment.

Chemical  Element  Content  For Reference
Q195 Chemical Element Content
C	Mn	Si	S	P
≤0.12	≤0.50	≤0.30	≤0.040	≤0.035
Q235 Chemical Element Content
C	Mn	Si	S	P
0.12~0.20%	0.30~0.67	≤0.30	≤0.045	≤0.045
65Mn Chemical Element Content
C	Mn	Si	S	P
0.62~0.70%	0.9~1.20%	0.17~0.37%	≤0.035	≤0.035
Q345 Chemical Element Content
C	Mn	Si	S	P
≤0.20	≤1.70	≤0.55	≤ 0.040	≤ 0.040

 

Mechanical  Property  For Reference
Grade	Yield Strength/Mpa	Tensile Strength/Mpa	Elongation / %
Q195	195	315~430	33
Q235	235	375~500	25
Q345	345	490~675	21

Q: Are you trading company or manufacturer ?
A: We are factory with own trade company
Q: How long is your delivery time?
A: Generally it is 5-7 days after the order confirmed
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge.
Q: What is your terms of payment ?
A: T/T, L/C,D/P..etc
If you have another question, pls feel free to contact us