60si2mna Sup7 Hot Rolled Forged Spirng Steel Plate
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Product Highlights
- High Quality Alloy Spring Steel: JIS SUP7 grade with quenched & tempered hardness of 28-34 HRc.
- Extensive Stock Availability: Over 20,000 tons of ex-stock items available in various sizes.
- Flexible Surface Treatment: Options include polished, black, peeled, machined, ground, turned, and milled.
- Comprehensive Heat Treatment: Services include normalized, annealed, quenched, and tempered processes.
- Wide Size Range: Round dia 6-120mm; Plate thickness 6-60mm; Width 20-160mm.
- Professional Manufacturer: Established since 1965 with advanced smelting and forging equipment.
- Global Export Experience: 11 years of export experience serving customers worldwide.
- Strict Quality Testing: Includes tensile, yield, impact, hardness, grain size, and ultrasonic tests.
Product Attributes
- Customization
- Available
- Type
- Steel Plate
- Standard
- AISI, ASTM, DIN, JIS, GB, BS
- Model NO.
- 60Si2MnA SUP7
- Composition
- Ferrous Steel Scrap
- Technique
- Hot Rolled
- Shape
- Bar
- Surface Treatment
- Polished
- Special Use
- Spring Steel
- Application
- Structural Steel Bar
- Heat Treatment
- Annealed
- Payment Term
- 30% Tt Deposit, Balance Against Bl Copy
- Length
- 6000-7000mm
- Ex-Stock
- Yes
- Delivery Date
- 30 Days
- Ut Standard
- Sep 1921-84 D/D
- Grain Size
- ASTM E112
- Non-Metallic Inclusiton
- ASTM E45
- Transport Package
- Seaworthy Package
- Specification
- DIA 6-280
- Trademark
- Qilu
- Origin
- China
- HS Code
- 722540
- Production Capacity
- 500, 000tons/Year
Product Images of 60si2mna Sup7 Hot Rolled Forged Spirng Steel Plate
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Product Description
1: SUP7 steel introduction
JIS SUP7 Steel is a high quality Alloy Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Quenched & Tempered Hardness is 28-34 HRc. SUP7 steel Annealing delivery hardenss less than 250HB.
.
2: SUP7 Steel equivalent
| Country | Japan | BS | China | USA |
| Standard | JIS G4801 | EN 10089 | GB/T 1222 | ASTM A29 |
| Grade | SUP7 | 60Si7 | 60Si2MnA | 9260 |
3: SUP7 steel chemical composition
| Grade | C | Si | Mn | P | S | Cr | V | Ni |
| 9260 | 0.56-0.64 | 1.8-2.2 | 0.75-1.0 | 0.035 | 0.040 | / | / | / |
| 60Si7 | 0.56-0.64 | 1.6-2.0 | 0.6-0.9 | 0.025 | 0.025 | / | / | / |
| SUP7 | 0.56-0.64 | 1.8-2.2 | 0.7-1.0 | 0.030 | 0.030 | / | / | / |
| 60Si2MnA | 0.56-0.64 | 1.6-2.0 | 0.7-1.0 | 0.025 | 0.020 | 0.35 | / | / |
4: SUP7 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: SUP7 steel overviews
| Size | Round | Dia 6-120mm |
| Plate/Flat/Block | Thickness 6mm-60mm |
|
| Width 20mm-160mm |
||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
| Application | automobile, locomotive, large plate spring, spring, etc. SUP7 Spring main used for heavy vehicles, tractors, industrial production load, stress and the diameter of the larger plate spring and helical spring. | |
6: Delivery condition
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot rolled sheet, usually the delivery conditon is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.

Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com
Tel: 86-731-85185768
Fax: 86-0731-85185771
About the Supplier
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Company Profile
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co., Ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China. The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial.
Till 2013 year, many customers need HOT ROLLED and COLD DRAWN steel from Qilu Industrial, in order to provide one-stop solution to our customers, Qilu Industrial began to cooperate with Dongbei Speical Steel (Dalian and Fushun mill), Baosteel, Tiangong International, Changcheng special steel for hot rolled tool steel, cooperate with Daye Special Steel, Jiangyin Xingcheng Speical Steel, Shagang Group, Jianlong group for hot rolled engineering steel. Now we already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Now Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
We are ready to work with colleagues from various circles at home and abroad and build good business relationship with each other to get win-win situation.
About Our Factory & Business Background
- Address
- Room 2831, B4 Taskin, Xiangfu Mid Road, Yuhua District, Changsha, Hunan, China
- Terms of Payment
- LC, T/T, Western Union, Small-amount payment
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- SHANGHAI, NINGBO, QINGDAO
Our Production Capability & Technical Expertise
- Main Products
- Alloy Steel, Carbon Steel, Stainless Steel, High Speed Seel, Spring Steel, Steel Forging
Our Industry Experience & Global Business Record
- Export Year
- 2008-06-01
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the hardness of SUP7 steel?
- Quenched & Tempered hardness is 28-34 HRc, while annealing delivery hardness is less than 250HB.
- What are the available surface treatments?
- We offer polished, black, peeled, machined, ground, turned, and milled surface conditions.
- What is the delivery time?
- The delivery time is typically 30-45 days, with peak season lead time around one month.
- What payment terms are accepted?
- We accept T/T, L/C, Money Gram, and PayPal. Specific terms may include 30% TT deposit.
- What are the main applications of SUP7 steel?
- It is mainly used for heavy vehicles, tractors, industrial production loads, and large plate or helical springs.
- Do you have ex-stock items?
- Yes, we have over 20,000 tons of ex-stock items available in various sizes in our warehouses.
- What standards does SUP7 steel comply with?
- It complies with JIS G4801, EN 10089, GB/T 1222, and ASTM A29 standards.
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