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Large Forged Wheels For Train Crane Shore Bridge Traveling Mechanism

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Shanghai Sunshine Industry Technology Co., Ltd.

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Large Forged Wheels For Train Crane Shore Bridge Traveling Mechanism

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Brand Name :	SSI
Price :	US $2500-6000/ T
Payment Terms :	T/T
Supply Ability :	20000piece/year
Delivery Time :	2 -4months after receipt of advance payment
Model Number :	SSI-M
Certification :	manufacture certificate

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Large Forged Wheels For Train Crane Shore Bridge Traveling Mechanism

Large Forged Wheels Such as Train Wheels , Crane Wheels , Shore Bridge Wheels , etc

1. The material is CL60, and its melting chemical composition shall comply with the provisions of TB / t2817. The heat treatment status of wheels is overall quenching and tempering treatment after forging, and the tread and rim are quenched + tempered. The batch principle is wheels with the same melting furnace number, the same model and the same heat treatment status. The hardness value of tread and rim surface is required to be 300 ~ 380hb, the hardness is distributed in steps, and the hardness at 20mm below the tread is not less than 260hb. After heat treatment, the surface hardness of each wheel shall be uniformly tested at three points on the tread to meet the drawing requirements confirmed by both parties.

2. In order to ensure the product quality, 100% ut NDT shall be conducted for the whole wheel, and 100% MT inspection shall be conducted for the wheel tread and rim. The flaw detection method and results shall meet the class II quality requirements of JB / t5000.15-2007.

Table 1

stretching				attack
R_eH (N/mm²)	Rm (N/mm²)	A₅ (%)	Z (%)	KU₂(J) (+20℃,groove depth2mm)
≥550	≥950	≥16	≥35	Average value≥16
Normal temperature tensile specimens with d0 = 10mm and l0 = 50mm shall be used				The U-shaped 2mm groove depth normal temperature impact specimen is adopted
Test method GB / T 228				Test method GB / T 229

3. For each heat of raw materials, a high-power sample shall be taken from the forging test bar of raw materials according to the requirements of GB / t10561 for non-metallic inclusion evaluation, and the results shall comply with the provisions of Table 2. The inspection surface shall be a longitudinal section passing through the axis of the test bar, with an area of about 200mm2 (L) × B:20mm × 10mm).

Table 2

Inclusion type	Fine system	Coarse system
A	≤2.5	≤1.5
B	≤3.0	≤2.0
C	≤2.5	≤2.0
D	≤2.5	≤2.0
A+B+C+D	≤5.5

4. The wheel tread shall be marked with paint "furnace code + billet number + drawing number"; "Furnace code + billet number" shall be printed on the rim end face with steel seal, and the word height shall be 10mm.

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