Prehardened (quenched and tempered) Spring Steel 1080 C80d 1.0622 80 U20802 Round Steel Rod

• Type: Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Carbon Steel
• Technique: Hot Rolled
• Shape: Bar
• Surface Treatment: Blace/Polishing/Oiling or Galvanizing/ etc
• Model NO.: 1080 C80D 1.0622 80 U20802
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Wear-Resistant Steel, Cold Heading Steel, Free-Cut
• Transport Package: Standard Seaworthy Export Packaging or as Required
• Specification: 3000-9000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 84802000
• Production Capacity: 1000 Ton/Month

Product Description

About products

Spring steel refers to the steel specially used for manufacturing springs and elastic elements due to its elasticity in the quenching and tempering state. The elasticity of steel depends on its elastic deformation capacity, that is, within the specified range, the elastic deformation capacity makes it bear a certain load, and no permanent deformation occurs after the load is removed. Spring steel shall have excellent comprehensive properties, such as mechanical properties (especially elastic limit, strength limit, yield ratio), anti elastic property (i.e. anti elastic degradation property, also known as anti relaxation property), fatigue property, hardenability, physical and chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.). In order to meet the above performance requirements, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), and accurate shape and size.

chemical composition

 

	C	Si	Mn	P	S	Cu
08F 1008 1010 SPHE SPHD	≤0.1	0.17-0.37	0.3-0.6	≤0.03	≤0.05	≥0.2
10# 1010 CK10 S10C S12C	0.08-0.13		0.3-0.6	≤0.04	≤0.05	≥0.2
15# 1015 S15C S17C CK15	0.13-0.18		0.3-0.6	≤0.04	≤0.05	≥0.2
1020/20#/CK22/C22E/S20C/1.1151/1.0144/	0.18-0.23		0.3-0.6	≤0.03	≤0.05	≤0.2
1025 25# 1.1158 S28C C25	0.22-0.28		0.3-0.6	≤0.04	≤0.05	≥0.2
1030 30# C30 CK30 S30C	0.28-0.34		0.6-0.9	≤0.04	≤0.05	≥0.2
1035 35# C35 CK35 S35C	0.32-0.38		0.6-0.9	≤0.04	≤0.05	≥0.2
1040/S40C/1.1186/C40E/SK40/1.1189/1.1186	0.37-0.44		0.6-0.9	≤0.04	≤0.05	≥0.2
1045 45# S45C S48C C45	0.43-0.5		0.6-0.9	≤0.04	≤0.05	≥0.2
1050 50# S50C S53C C50	0.48-0.55	-	0.6-0.9	≤0.04	≤0.05	≤0.2
1055 55# C55 CK55 S55C	0.5-0.6	0.17-0.37	0.6-0.9	≤0.04	≤0.05	≥0.2
1060/60#/1.1221/1.0601/C60E/CK60/S58C	0.55-0.65	0.17-0.37	0.6-0.9	≤0.04	≤0.05	≥0.2
1065/65#/G10650/1.1231/SL/SM/CK67	0.62-0.7	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25
1070/70#/G10700/Type DC/1.0615	0.67-0.75	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25
1080/C80D/1.0622/80/U20802	0.77-0.85	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25
1085/1086/85/G10860/SUP3/SPS1/Type DC/Ck85/C85S/1.1269	0.82-0.9	0.17-0.37	0.5-0.8	≤0.035	≤0.035	≤0.25

Product Description

Production Range	Outer Diameter:6-530mm (0.24 inch - 21.18 inch)
	Wall Thickness:0.8-200mm (0.03 inch - 7.89 inch)
Material / Grade	Carbon Steel: GB/T 3094: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C
	Alloy Steel: GB/T 3094: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420
Tolerance	Can be customized according to customer's requirements
Technique	Cold Drawn / Cold Rolled
Shape	Triangle, Hexagon, Square, Rectangle, Octagon, Lemon Pipe and Others can be customized
Further Processing for Steel Tubes	Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

Mechanical properties

Brand	Sample blank size/mm	mechanical property					Hardness of steel delivered
		Normalizing/quenching/ tempering	ób/MPa	ós/MPa	δ5(%)	Ψ(%)	AKu2/J
			≥				Unheat-treated steel	Annealed steel
1010	25	930-/-/	315	185	33	55	137
1020	25	910/-/-	4lO	245	25	55	156
1025	25	900/870/600	450	275	23	50	170
1030	25	880/860/600	490	295	21	50	179
1035	25	870/850/850	530	315	20	45	197
1040	25	860/840/60D	570	335	19	45	≤217	≤187
1045	25	850/840/600	600	355	16	40	≤229	≤197
1050	25	830/830/600	630	375	14	40	≤24l	≤207
1055	25	820/820/600	645	380	13	35	≤255	≤217
1060	25	810/-/-	675	400	12	35	≤255	≤229
1065	25	810/-/-	695	410	lO	30	≥255	≤229
1085		-/820/480	1130	980	6		≤302	≤255

Spring is used under impact, vibration or long-term alternating stress, so spring steel is required to have high tensile strength, elastic limit and high fatigue strength. In terms of technology, it is required that the spring steel has certain hardenability, is not easy to decarburize, and has good surface quality. That is, it is a high-quality carbon structural steel with a carbon content of 0.6% - 0.9%. Alloy spring steel is mainly silicon manganese steel, and their carbon content is slightly lower, mainly by increasing silicon content Wsi to improve properties; In addition, there are chromium, tungsten and vanadium alloy spring steels. In recent years, combined with Chinese resources and according to the requirements of new technologies for automobile and tractor design, a new steel grade with boron, niobium, molybdenum and other elements added to the silicon manganese steel has been developed, which extends the service life of the spring and improves the quality of the spring..

 

Packaging	1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles
20 feet container contains dimension	Length under 6000mm
40 feet container contains dimension	Length under 12000mm
By bulk vessel	Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo

FAQ

1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.

2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;

3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.

5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese

6. How can we get your price?
A. We need the following information to quote for you:
1).  Product Name
2).  standard
3).  Material grade (chemical composition)
4).  dimension
5).  amount
6).  Special part drawin