Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of steel coil sizes 4130 aisi black bobina carbon rolled in China. Welcome to wholesale customized steel coil sizes 4130 aisi black bobina carbon rolled at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
Steel Coil
What is 4130 Steel?
AISI 4130 alloy steel is a medium carbon, low alloy steel in ASTM A29 standard. ASTM 4140 steel is also commonly referred to as a chromoly steel, or chrome moly steel, containing nominally 0.28-0.33% Carbon, 0.8-1.1% Chromium and 0.15-0.25% Molybdenum. It is similar to 4140 steel which has a higher carbon level (0.28-0.33%), giving 4130 material improved weldability, at the expense of through thickness strength. With the proper heat treatment it is also readily machined. Annealing ASTM 4130 alloy steel offers excellent ductility. AISI 4130 steel is usually supplied as round bar commonly in the hardened and tempered condition.
AISI/SAE 4130 steel grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength up to around 315º C (600º F). It shows good overall combinations of strength, toughness and fatigue strength.
Factory
Due to the properties of zinc, zinc is plated on the surface of the steel plate to prevent corrosion.
- Cold rolled coil description：
| Payment terms | T/T, L/C, Paypal, Western Union. and Generally it is 30% prepayment, 70% balance see B/L copy, or 100% LC at sight. |
| Standard | ASTM EN DIN GB ISO JIS |
| Certification | CE ISO |
| Thickness | 0.2mm-300mm or as customer requirement |
| Width | 500mm-3000mm or customize |
| Length | 1000mm-12000mm or as buyer needs |
| Tolerance | Thickness: +/-0.02mm, Width:+/-2mm |
| Technique | Hot rolled or Cold rolled |
| One-stop service | shot blasting or painting available |
| Application | Pressure vessels, Ship, Building construction, Equipment or Machinery parts, Bridge, Railroad tracks, Agricultural equipment, Automotive frames, Home appliances, Aerospace structural members |
| Production capacity | 20000ton/month |
- AISI 4130 Steel Specification and Relevant Standards
| Country | USA | BS | BS | Japan |
| Standard | ASTM A29 | EN 10250/EN10083 | BS 970 | JIS G4105 |
| Grades | 4130 | 25CrMo4/1.7218 | 708A25/708M25 | SCM430 |
- ASTM 4130 Steels And Equilvalents Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
| ASTM A29 | 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| EN10250 /EN10083 |
25CrMo4/ 1.7218 |
0.22-0.29 | 0.60-0.90 | 0.025 | 0.035 | ≦0.40 | 0.90-1.2 | 0.15-0.30 |
| JIS G4105 | SCM430/ SCM2 |
0.28-0.33 | 0.60-0.85 | 0.030 | 0.030 | 0.15-0.35 | 0.90-1.2 | 0.15-0.30 |
FAQ:
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not 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. If you have another question, pls feel free to contact us.
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