Sup9 Spring Steel Round Bar

• Customization: Available
• Type: Carbon Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN
• Model NO.: KM-20200706
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Black or Bright Finished
• Alloy: Non-alloy
• Special Use: Spring Steel
• Transport Package: in Bundle or Customer′s Request
• Specification: 16~220mm
• Trademark: KINGMETAL
• Origin: China
• HS Code: 7227200000
• Production Capacity: 3000 Tons Per Month

Product Description

SUP9 Spring Steel round bar

1. Standard: JIS, AISI, GB, DIN, EN

2. Length: 2000-6000mm or as customer's requirement

3. Surface: Black/grinded/Milled

4.Technique: Hot Rolled/Cold Drawn/ Forged

5. Diameter: 16-220mm

Spring Steel Round Bar

• Grades 55Cr3 & SUP 9
• Size Range: 16mm - 220mm Diameter

Spring Steel Flat Bar

• Grades 55Cr3, SUP 9A, XK9258S.
• Size Range: 40 x 6mm - 130 x 25mm

Specification:

Chemical Composition:
GRADE	C	Si	Mn	P	S	Cr
SUP9	0.52~0.60	0.15~0.35	0.65~0.95	0.035max	0.035max	0.65~0.95

Mechanical properties:
Tensile Strength(N/mm2)	Elongation %	Yield Strength	heat treatment/quenching	Hardness (HB)	Reduction of Area
1230	9	1080	830-860 oil cooling	363-429	20

Spring Steel List:

GB	ASTM	JIS	EN
65	1065	SWRH67B	C66D
70	1070	SWRH72B	C70D
85	1084	SWRH82B	C86D
65Mn	1566	SWRH67B
70Mn	1572	SWRH72B
55Si2Mn	9255		56Si7
55Si2MnB
55SiMnVB
60Si2Mn	9260	SUP6,SUP7	61SiCr7
60Si2MnA	9260	SUP6,SUP7	61SiCr7
60Si2CrA			54SiCr6
60Si2CrVA			54SiCrV6
55CrMnA	5155	SUP9	55Cr3
60CrMnA	5160	SUP9A	60Cr3
60CrMnMoA	4161	SUP13	60CrMo3-3
50CrVA	6150	SUP10	51CrV4
60CrMnBA	51B60H	SUP11A
30W4Cr2VA
70Si2CrA
55CrSiA			54SiCr6
1Cr18Ni9	302	SUS302
0Cr19Ni10	304	SUS304	X5CrNi18-10
0Cr17Ni12Mo2	316	SUS316	X5CrNiMo17-12-2
0Cr17Ni8Al	631	SUS631J1	X7CrNiAl17-7
1Cr17Ni7

Application

SUP9 spring steels, Highlight the advantage is good hardenability, another hot working performance, comprehensive mechanical properties,

Decarburization resistance is also good big cross section of various important spring, such as automobile, locomotive, large plate spring, spring, etc. SUP9 Spring main used for heavy vehicles, tractors, industrial production load, stress and the diameter of the larger plate spring and helical spring