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| Categories | Cold Finished Bar | 
|---|---|
| Brand Name: | UST | 
| Model Number: | 3*3mm to 120*120mm | 
| Certification: | ISO 9001 | 
| Place of Origin: | China | 
| MOQ: | MOQ: 1-3 ton | 
| Price: | USD 700- 1200/ton | 
| Supply Ability: | 1500 ton/month | 
| Delivery Time: | Within 5-35 days | 
| Packaging Details: | Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips. | 
| Usage: | Mechanical | 
| Production Technique: | Cold drawn or polished | 
| Quality Standard: | ASTM A29, DIN, JIS | 
| Surface: | Smooth or bright | 
| Material: | Alloy steel | 
| Tolerance: | H9,H10,H11 | 
| Steel Grade: | 4140 / 42CrMo4 | 
| Company Info. | 
| SHANGHAI UNITE STEEL | 
| View Contact Details | 
| Product List | 
4140,42CrMo4,42CrMo,SCM440 cold drawn square bar, cold finished bar
Product Advantages:
1. high strength
2. good toughness
3. good Hardenability
Chemical composition:
| Standard | Grade | C | Cr | Mo | Si | Mn | P | S | Ni | Cu | 
| ≤ | ||||||||||
| ASTM | 4140 | 0.38-0.43 | 0.80-1.10 | 0.15-0.25 | 0.15-0.35 | 0.75-1.00 | 0.035 | 0.040 | / | / | 
| ENISO | 42CrMo4/1.7225 | 0.38-0.45 | 0.90-1.20 | 0.15-0.30 | ≤0.40 | 0.60-0.90 | 0.035 | 0.035 | / | / | 
Size range:
3*3mm to 120*120mm
Length Random Length, Fixed Length, etc.
Surface: Smooth and polished
What is the Tolerance of our Round bar?
| Tolerance | H7 | H8 | H9 | H10 | H11 | F7 | F8 | 
| mm | |||||||
| 6-10 | 0-0.015 | 0-0.022 | 0-0.036 | 0-0.058 | 0-0.09 | -0.013 | -0.013 | 
| -0.028 | -0.035 | ||||||
| 10-18 | 0-0.018 | 0-0.027 | 0-0.043 | 0-0.058 | 0-0.09 | -0.016 | -0.016 | 
| -0.034 | -0.043 | ||||||
| 18-30 | 0-0.021 | 0-0.033 | 0-0.052 | 0-0.084 | 0-0.13 | -0.02 | -0.02 | 
| -0.041 | -0.053 | ||||||
| 30-50 | 0-0.025 | 0-0.039 | 0-0.062 | 0-0.1 | 0-0.16 | -0.025 | -0.025 | 
| -0.05 | -0.064 | ||||||
| 50-80 | 0-0.030 | 0-0.046 | 0-0.074 | 0-0.12 | 0-0.19 | -0.03 | -0.03 | 
| -0.06 | -0.076 | ||||||
| 80-120 | 0-0.035 | 0-0.054 | 0-0.087 | 0-0.14 | 0-0.22 | -0.036 | -0.036 | 
| -0.071 | -0.9 | 
Packing: Plastic reel shaft, and bound, iron wire frame, the paper barrel
etc

Please feel free to contact us again if you have any further questions. We look forward to receiving an order from you.
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