Tianjin Qiangbang Industrial Co., Ltd.

Spring Flat Steel, Flat Spring Steel Bar, Sup-9 Flat Spring Steel manufacturer / supplier in China, offering 30mncrb5 Flat Bar Spring Steel for Tools and Knives, Individual Epoxy-Coated Wire Prestressing Steel Strand, Epoxy Coated Steel Strand for Prestressing Concrete and so on.

Supplier Homepage Product List Hot Rolled Steel Flat Bars 30mncrb5 Flat Bar Spring Steel for Tools and Knives

30mncrb5 Flat Bar Spring Steel for Tools and Knives

FOB Price:US $560 - 580 / Ton
Purchase Qty. (Tons) FOB Price
25-49 US $580 / Ton
50-99 US $570 / Ton
100+ US $560 / Ton
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Min. Order: 25 Tons
Port: Tianjin, China
Production Capacity: 20000 Ton/Month
Payment Terms: L/C, T/T

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Basic Info.

Model NO.:30MnCrB5, 30CrMnB5, 28MnCrB5
Type:Carbon Steel Bar
Composition:High Carbon Steel
Technique:Hot Rolled
Shape:Flat Steel Bar
Surface Treatment:No
Special Use:High-strength Steel Plate
Application:Leaf Spring,Agricultural Blades Making etc.
Place of Origin:Tianjin, China (Mainland)
Brand Name:Daqiang
Surface1:Smooth Plain
Surface2:Double Grooved
Production Line:Short Stress Production Line
Length:as Customers′ Requirements
Capacity:40, 000tons Per Month
Transport Package:Export Packing
Specification:ASTM, GB, DIN...
HS Code:72283090

Product Description

Flat bar for auto leaf spring (SAE5160)

1. Grade: 60si2mn, 50CrVA, 55CrMnA, sup-9, 65Mn etc.
2. Type: Smooth plain, double grooved.
3. Sizes: Width 40-150mm, thickness 6-30mm, length 2-8m.
4. Specifications: A variety of sizes from 6x40 to 30x150mm
5. Usage: Laminated leaf spring suspension for automobile and vehicle, agricultural implements (rotary coulter), tools and machines etc.

1. We are a medium-scale steel mill for spring flat steel. Daqiang Brand spring flat steel is in excellent quality and competitive price.
2. We can produce spring flat steel with non-standard customized sizes of width, length and thickness, according to the customer's requirement.
Chemical  Composition
Steel  Grade Chemical  Composition    (%)
Not  more  than 
650.62-0.700.17-0.370.50-0.80≤ 0.25
700.62-0.750.17-0.370.50-0.80≤ 0.25
850.82-0.900.17-0.370.50-0.80≤ 0.25
65Mn0.62-0.700.17-0.370.90-1.20≤ 0.25
55SiMnVB0.52-0.600.17-1.001.00-1.30≤ 0.350.08-0.16 0.0005-0.00350.350.250.0350.035
60Si2Mn0.56-0.641.50-2.000.70-1.00≤ 0.35   0.350.250.0350.035
60Si2MnA0.56-0.641.60-2.000.70-1.00≤ 0.35   0.350.250.0350.025
60Si2CrA0.56-0.641.40-1.800.40-0.700.70-1.00   0.350.250.0350.025
60Si2CrVA0.56-0.641.40-1.800.40-0.700.90-1.200.10-0.20  0.350.250.0350.025
55SiCrA0.51-0.591.20-1.600.50-0.800.50-0.80   0.350.250.0250.025
55CrMnA0.52-0.600.17-0.370.65-0.950.65-0.95   0.350.250.0250.025
60CrMnA0.56-0.640.17-0.370.70-1.000.70-1.00   0.350.250.0250.025
50CrMnA0.46-0.540.17-0.370.50-0.800.80-1.100.10-0.20  0.350.250.0250.025
60CrMnBA0.56-0.640.17-0.370.70-1.000.70-1.00  0.0005-0.00400.350.250.0250.025
30W4Cr2VA0.26-0.340.17-0.37≤ 0.402.00-2.500.50-0.804.00-4.50 0.350.250.0250.025
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Tianjin Qiangbang Industrial Co., Ltd.

- Tianjin, China
- Manufacturer/Factory, Trading Company, Group Corporation

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