4130 Seamless Precision Tube Cold Drawn Chromoly Mechanical Piping
1.Brief introduction of 4130 seamless precision tube:
| Grade | AISI 4130, AISI4130 / GR.4130 / SAE4130 |
| Standard | ASTM A519 / ASME SA 519 |
| Size | 2"- 12" |
| Outer Diameter | 20-520 mm |
| Wall Thickness | 1-50 mm |
| Shape | round, square, rectangular and special sections. |
| Length | 5.8 m for 20GP, 11.8m for 11.8m |
| Sizing Methods | HF-Hot Finished,CW-Cold worked,RT-Rough Turned,G– Ground. |
| ASTM A519 treatment conditions | A-Anealed,N– Normalized,QT-Quenched and Tempered,SR-Stress Relieved or Finish Annealed. |
2.Chemical components of 4130 seamless precision tube:
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
3.Mechanical properties of 4130 material:
| Condition | Ultimate Strength | Yield Strength | Elongation in 2 in.or 50mm,% | Rockwell, Hardness B Scale |
| ksi | Mpa | ksi | Mpa |
| Hot Rolled (HR) | 90 | 621 | 70 | 483 | 20 | 89 |
| Stress Relieved (SR) | 105 | 724 | 85 | 586 | 10 | 95 |
| Annealed (A) | 75 | 517 | 55 | 379 | 30 | 81 |
| Normalized (N) | 90 | 621 | 60 | 414 | 20 | 89 |
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
4.Product show of 4130 Seamless Precision Tube:
5.Our packing method:
Q&A
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
Q:Do you have agent or distributor in our country?
A:We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
Q:How is your production capability?
A:1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment
Q:How to get the sample?
A:1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.
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