Quality Standard:
JIS G4801 2005 Spring Steels
BS EN 10089 2002 Hot rolled steels for quenched and tempered springs
ASTM A29 Standard Specification Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements
Similar Grade:
Material No. |
EN |
JIS |
ASTM |
GB |
| 1.5028 |
56Si7 |
SUP7 |
9260H |
60Si2Mn |
Chemical Composition(%)
Steel Grade |
C |
Si |
Mn |
P |
S |
| 9260 |
0.56-0.64 |
1.90-2.20 |
0.75-1.00 |
0.035 max |
0.040 max |
| 56Si7 |
0.52-0.60 |
1.60-2.00 |
0.60-0.90 |
0.025 max |
0.025 max |
| SUP7 |
0.56-0.64 |
1.80-2.20 |
0.70-1.00 |
0.030 max |
0.030 max |
| 60Si2Mn |
0.56-0.64 |
1.50-2.00 |
0.70-1.00 |
0.035 max |
0.035 max |
HEAT TREATMENT:
· FORGING:Hot forming temperature: 1050-850oC.
· SOFT ANNEALING: Heat to 640-680oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 255.
· HARDENING: Harden from a temperature of 830-860oC followed by oil quenching.
· TEMPERING:Tempering temperature: 350-550oC, air.
Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Introduction:
Special structural steel.
Applications:
Steel grade for laminated springs thickness above 7 mm for trucks and railway vehicles, coiled and threaded springs.
Fushun Special Steel LTD CO
Fushun Metal is a large special steel manufacturer and supplier. We are metal experts and have been providing quality customer service and products since 1998.
At Fushun Metal, we supply a wide range of metals for a variety of applications. Our products/stock includes: stainless steel, alloy steel, spring steel, tool steel, high speed steel, mould steel, nickel alloy.
Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, tubes, sheets and plates. We can cut metal to your exact specifications.
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