High-Quality Hot-Rolled 1.5423/16mo5/1.5423 /1.5404 /1.5406/37crni3a Cold-Drawn Alloy Forged Steel Spring Steel Round Steel

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Black/Peeling/Polishing/Machining/Grinding/Turning
• Alloy: Alloy
• Model NO.: 1.5423/16Mo5/1.5423 /1.5404 /1.5406/37CrNi3A
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel, Tool Steel
• Transport Package: Standard Packaging or Customized
• Specification: 100-12000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 72141000
• Production Capacity: 1000 Ton/Month

Product Description

Introduction

Spring steel refers to special alloy steel for manufacturing various springs and other elastic elements. According to performance requirements and service conditions, it can be divided into ordinary alloy spring steel and special alloy spring steel. Spring steel has excellent comprehensive properties. 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

Grade	C	Si	Mn	Cr	Ni	Mo	P	S	Cu
							≤
20Mn2	0.17-0.24	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn420	0.17-0.23	0.15-0.35	1.20-1.50	≤0.35	≤0.25		0.030	0.030	0.30
1524	0.19-0.25	0.15-0.30	1.35-1.65	-	-		0.040	0.050	0.20
22Mn6	0.18-0.25	0.10-0.40	1.30-1.65	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
18Mn5 1.0436	0.15-0.20	≤0.40	0.90-1.60	≤0.30	≤0.30	≤0.08	0.025	0.015	0.30
35Mn2	0.23-0.39	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn438	0.35-0.41	0.15-0.35	1.35-0.65	≤0.35	≤0.25	-	0.030	0.030	0.30
1335	0.33-0.38	0.15-0.35	1.60-1.90	≤0.20	≤0.25	≤0.06	0.035	0.040	0.35
36Mn6	0.33-0.40	0.10-0.40	1.30-1.65	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
40Mn2	0.37-0.44	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn443	0.40-0.46	0.15-0.35	1.35-1.65	≤0.35	≤0.25	-	0.030	0.030	0.30
1340	0.38-0.43	0.15-0.35	1.60-1.90	≤0.20	≤0.25	≤0.06	0.035	0.040	0.35
55SiMnMo/60Si2Mn/SUP6/ 1.0909/60Si7	0.52-0.6	0.9-0.9	1-1.3	≤0.35	-	-	0.04	0.04	0.2
SUP10 1.8159 50CrV4 50CrVA	0.47-0.55	0.15-0.35	0.65-0.95	0.8-1.1	-	-	0.03	0.03	0.3
39NiCrMo3/ 1.6510 /40CrNiMo	0.35-0.43	≤0.4	0.5-0.8	0.6-1	0.7-1	0.15-0.25	0.025	0.035	-

 

Product Description

 

Steel					STB42
	20CrMo	20XM	4119,4118	CDS12	SCT42	18CD4	20CrMo44
				CDS110	STT42
					STB42
	25CrMo		4125	En20A		25CD4	25CrMo4
	30CrMo	30XM	4130	1717COS110	SCM420	30CD4
	42CrMo		4140	708A42		42CD4	42CrMo4
				708M40
	35CrMo	35XM	4135	708A37	SCM3	35CD4	34CrMo4
	12CrMoV	12XMΦ
	12Cr1MoV	12X1MΦ					13CrMoV42
	25Cr2Mo1VA	25X2M1ΦA
	20CrV	20XΦ	6120				22CrV4
	40CrV	40XΦA	6140				42CrV6
	50CrVA	50XΦA	6150	735A30	SUP10	50CV4	50CrV4
	15CrMn	15XГ,18XГ
	20CrMn	20XГCA	5152	527A60	SUP9
	30CrMnSiA	30XГCA
	40CrNi	40XH	3140H	640M40	SNC236		40NiCr6
	20CrNi3A	20XH3A	3316			20NC11	20NiCr14
	30CrNi3A	30XH3A	3325	653M31	SNC631H		28NiCr10
			3330		SNC631
	20MnMoB		80B20
	38CrMoAlA	38XMIOA		905M39	SACM645	40CAD6.12	41CrAlMo07
	40CrNiMoA	40XHMA	4340	871M40	SNCM439		40NiCrMo22

Alloy spring steel is a kind of steel based on carbon steel, which can improve the mechanical properties, hardenability and other properties of steel by properly adding one or several alloy elements to meet the requirements 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 brands have added alloy elements such as molybdenum, vanadium or boron to improve their performance in some aspects. In addition, some grades of spring steel are also selected from other steels, such as high-quality carbon structural steel, carbon tool steel, high-speed tool steel and stainless steel
 

Application

Very high strength, hardness and yield ratio can be obtained, but the hardenability is small, the heat resistance is poor, and the ability to bear dynamic load and fatigue load is low. It is widely used, but it is mostly used for small springs with low working temperature or less important large springs. Such as springs for automobiles, tractors, railway vehicles and general machinery. 65Mn has simple composition, better hardenability, comprehensive mechanical properties, decarburization and other technological properties than carbon steel, but it is sensitive to overheating, has temper brittleness, easy to crack after quenching, low price and large amount. Manufacture all kinds of small section flat springs, round springs, spring springs, etc., as well as valve springs, spring rings, shock absorbers, clutch springs, brake springs, etc

 

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, the spring steel is required to have certain hardenability, non-decarburization, good surface quality and other carbon spring steel, that is, high-quality carbon structural steel with carbon content WC in the range of 0.6% - 0.9%. The alloy spring steel is mainly of silicomanganese series, and their carbon content is slightly lower, mainly by increasing the silicon content Wsi to improve the performance; In addition, there are alloy spring steels of copper, tungsten and vanadium. In recent years, in combination with China's resources and according to the requirements of new technologies for the design of automobiles and tractors, a new type of steel with boron, niobium, molybdenum and other elements added on the basis of silicon manganese steel has been developed, which has extended the service life of springs and improved the quality of springs.

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 drawing