Spring Steel Coil
We are a high-quality steel manufacturer in China. We can produce and supply various specifications of spring steel coils, spring steel strips, carbon steel coils, etc. The product quality is guaranteed. Welcome to discuss business.
Steel Grade:
C22E, Ck22, C25E, Ck25, C30E, Ck30, C35E, Ck35, C40E, Ck40, C45E, Ck45, C50E, Ck53, C67, CK67, C75
S10C, S15C, S20C, S25C, S30C, S35C, S40C, S45C, S50C, S55C, SUP2, SWRS72B, SUP3, SK5,
SAE1020, SAE1025, SAE1030, SAE1035, SAE1040, SAE1045, SAE1050, SAE1060, SAE1064, SAE1065, SAE1070, SAE1074, SAE1084, SAE1078, etc.
Description
Spring steel coil has good durability and elasticity, convenient processing, is one of the important materials in modern manufacturing industry. Our company can supply spring steel coil, spring steel strip, carbon steel coil and so on.
Product Description
Spring steel strip is a type of spring steel, which refers to special alloy steel used to manufacture various springs and other elastic components. According to performance requirements and usage conditions, it can be divided into ordinary spring alloy steel coils and special alloy spring steel.
1. Classification by chemical composition
According to the GB/T 13304 standard, spring steel is divided into non-alloy spring steel (carbon spring steel) and alloy spring steel according to its chemical composition.
carbon spring steel
The carbon content (mass fraction) of carbon spring steel is generally 0.62%~0.90%. According to its manganese content, it is divided into general manganese content (mass fraction) (0.50%~0.80%) such as 65, 70, 85 and higher manganese content (mass fraction) (0.90~1.20%) such as 65Mn.
Alloy spring steel
Alloy spring steel is based on carbon steel. By appropriately adding one or several alloy elements to improve the mechanical properties, hardenability and other properties of the steel, it can meet the steel types required for manufacturing various springs.
The basic composition series of alloy spring steel include silicon-manganese spring steel, silicon-chromium spring steel, chromium-manganese spring steel, chromium-vanadium spring steel, tungsten-chromium-vanadium spring steel, etc. On the basis of these series, some grades add alloying elements such as molybdenum, vanadium or boron to improve certain aspects of their performance.
In addition, there are some grades selected from other steel types, such as high-quality carbon structural steel, carbon tool steel, high-speed tool steel, stainless steel, etc. as spring steel.
2. Classification according to production and processing methods
1. Hot-rolled (forged) steel products include hot-rolled round steel, square steel, flat steel, steel plates, forged round steel, and square steel.
2. Cold-drawn (rolled) steel products include steel wire, steel strip, and cold-drawn materials (cold-drawn round steel).
Standards
| GRADES COMPARISON FOR SPRING STEEL | ||||||||
| CHINA GB/T | USA ASTM | JAPAN JIS | GERMANY DIN | FRANCE NF | BIRTAIN BS | ISO | KOREA KS | TAIWAN CNS |
| 65 | 1065 | SUP2 S65-CSP | 60E | XC65 | 060A67 | C60E4 | ||
| 70 | 1070 | S70C-CSP | 60E | XC70 | 070A72 | 8458-3 DAB | ||
| 85 | 1084 | SUP2 SK5-CSP | C85E | XC85 | 060A86 | 8458-2 DH | SUP1 | SUP3 |
| 65Mn | 1566 | S60C-CSP | CK67 | 080A67 | C60E4 | |||
| 55Si2Mn | 9255 | SUP 6 SUP7 | 55Si7 | 55Si7 | 251H60 | 55SiCr7 | ||
| 55SiMnVB | ||||||||
| 60Si2Mn | 9260 | SUP 6 SUP7 | 65Si7 | 65Si7 | 251H60 | 61SiCr7 | SUP3 | SUP6 |
| 60Si2MnA | 9260 | SUP 6 SUP7 | 65SiMn5 | 55Cr7 | 251H6 | 61SiCr7 | SUP3 | SUP6 |
| 60Si2CrA | 65SiCr7 | 65SiCr7 | 685H57 | 55SiCr6-3 | ||||
| 60Si2CrVA | 65SiCr7 | 55SiCr6-3 | ||||||
| 55SiCrA | ||||||||
| 55CrMnA | 5155 | SUP9 | 55Cr3 | 55Cr3 | 527A60 | 55Cr3 | SPS5 | SUP9 |
| 60CrMnA | 5160 | SUP9A | 55Cr3 | 55Cr3 | 527A60 | SPS5A | SUP9A | |
| 60CrMnMoA | 4161 | SUP13 | SPS9 | SUP13 | ||||
| 50CrVA | 6150 | SUP10 | 51CrV4 | 51CrV4 | 735A51 | 51CrV4 | SPS6 | SUP10 |
| 60CrMnBA | 51B60H | SUP11A | 52MnCr83 | 60VrB3 | SPS67 | SUP11 | ||
| 30w4Cr2VA | ||||||||
Standards and Classifications
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Product Name
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Spring steel strip /Spring Steel Strap/Spring Steel Band
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Material
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GB Spring Steel :65、70、65Mn、70Mn、55Si2Mn、55SI2MnB、55SI2MnVB、60Si2Mn、60Si2MnA、60SI2CrA、60Si2CrVA、55CrVA、60CrMnBA、55CrMnA,etc; China Tainwan Spring Steel :SK3、SK5、SK7、SKS51、S55C、S65C、SK85、SK4、SK85、T8A、T12A、T10A,etc;
Germany Spring Steel :C67E、CK67、C75E、CK75、C85E、CK85、C101E、CK101、38Si6、38Si7、46Si7、51Si7、55Si7、56Si7、65Si7、71Si7、60SiMn、51MnV7、54SiCr6、60SiCr7、67SiCr7、55Cr3、51CrV4、50CrV4、58CrV4、51CrMO4、45CrMOV6-7、52MnCrB3,etc;
JIS Spring Steel:SUP3、SUP6、SUP7、SUP9、SUP9A、SUP10、SUP11A、SUKP12、SUP13、S50C-CSP、S55C-CSP、S60C-CSP、S65C-CSP、S70C-CSP、SK5-CSP、SUP10-CSP,etc;
UK Spring Steel:251A58、251A60、251H60、525A58、525A60、525A61、685A57、685H57、704A60、704H60、705A60、705H60、735A51、735H51、735,etc;
ASTM Spring Steel : sae1050,sae1055,sae1060,sae1065,sae1070,sae1075,etc;
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Thickness
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0.08mm-4.0mm
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Width
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10mm-800mm or cutting according customer’s requests;
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Standard
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BS,ASTM,JIS,GB,DIN,AISI Standard,etc
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Surface
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Yellow,grey, blue, bright, bright & grey, bright & blue,polished,black ,etc
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Edge
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slit, sheared, square, rounded,etc;
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Process
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Hardened (quenched) and tempered,annealed,etc;
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Hardness
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Soft strip: HV190
Hardened and tempered process (29-55HRC) and annealED process (max 19HRC). Or as customer’s requirement
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Package
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PVC film+ waterproof kraft paper + strong wooden case /Pallets or according customer’s request;
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Features
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The chemical compositions helps spring steel to endure significant bending or twisting and return to its original shape without deforming.
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Application
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Spring Steel is widely in the motor vehicle industry and many general engineering applications. It is suitable for applications that require high strength and toughness. Typical applications include crankshafts, steering knuckles, gears, spindles and pumps,etc;
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Delivery Term
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EXW, FOB, CFR, CIF, DDU.
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Note
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OEM / ODM / Buyer Label accepted
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Product Display
Packing & Delivery
Shipping By Sea
1. Standard packaging
2. Packaging according to customer requirements
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