Product Details

Delivery Time:20 - 35 days according to your order quantity
Certification:TUV, SGS, ISO9001

Raw material Plain Surface Steel Tie Plate For Fixing Rail Fasteners

Material: carbon steel

1.QT500-7

2.QT450-10
3.QT400-15

4. low carbon steel or high carbon steel by forged

5. Low carbon steel S275JR, Q235,etc. by rolled

Production Process

1. Raw material

2. forging or casting (1100 degrees celsius)

3. Forming

4. Hardening

5. Tempering below 350 degrees celsius

6. Inspection

7. Packing

Surface Treatment

1. Plain (oiled) (main)

2. Color paint

3. Oxide Black

4. Galavazing

5. DHG

Application system

1. KPO Rail fatsening

2. SKL3 Rail fatsening

3. SKL12 Rail fatsening

4. Other


Name	QT500-7	QT450-10	QT400-15
Standard	GB 1348-88	GB 1348-88	GB 1348-89
Chemical composition(%)	C:3.60-3.80	C:3.40-3.90	C:3.50-3.60
	Mn:≤0.6	Mn:0.2-0.5	Mn:≤0.5
	Si:2.50-2.90	Si:2.70-3.00	Si:3.0-3.2
	P:≤0.08	P:≤0.07	P:≤0.07
	S:≤0.025	S:≤0.03	S:≤0.02
Tensile Strength	≥500 Mpa	≥450 Mpa	≥400 Mpa
Yield Strength	≥320 Mpa	≥310 Mpa	≥250 Mpa
Elongation(%)	≥7	≥10	≥15
Hardnrss	170~230HB	160~210HB	130~180HB
Metallographic organization	ferrite + pearlite	graphite + ferrite + pearlite	ferrite
Surface	plain (oiled)