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Hot Rolled Alloy Steel Coil for Structural Fabrication
US$900.00-1,600.00
3 Tons
Sample price:US$3.00/kg.Request sample

Product profile

Customization

Available

Type

Coil

Standard

AISI, ASTM, DIN, JIS, GB

Model NO.

DMT Alloy Steel Coil

Composition

Alloy Steel (Cr-Mo)

Technique

Hot/Cold Rolled/Forged/Annealed/Quenched Tempered

Shape

Coil

Surface Treatment

Raw, Black, Pickled & Oiled, Bright, Polished

Application

Automotive, Aerospace, Heavy Machinery, Oil & Gas

Thickness

0.5mm-50mm (Custom Available)

Width

200mm-1500mm (Custom Available)

Coil ID

508mm / 610mm

Coil Weight

1-15 Mt Per Coil (Custom Available)

Heat Treatment

Annealed / Normalized / Quenched & Tempered (Qt)

Edge Treatment

Mill Edge / Slit Edge / Deburred Edge

MOQ

3-5 Tons (Negotiable)

Testing

100% Ultrasonic Testing (Ut); Mtc Provided

Lead Time

0-45 Days After Order Confirmation

Transport Package

Wrapped with Plastic in Wooden Pallets

Specification

Cr-Mo Alloy Steel Coil (4340 / 8620 / 4130 / 41

Trademark

DUMAI TUBE

Origin

China

HS Code

7306

Production Capacity

50000 Tons/Year

Key features

Customizable Dimensions: Thickness 0.5-50mm, Width 200-1500mm, and Coil Weight 1-15MT are available in custom sizes.
Multiple Material Grades: Supplies 4340, 8620, 4130, and 4140 Ni-Cr-Mo alloy steel coils meeting ASTM, EN, and JIS standards.
Comprehensive Heat Treatment: Options include Annealed, Normalized, Quenched & Tempered (QT), and Carburized for specific properties.
Rigorous Quality Assurance: 100% Ultrasonic Testing (UT) and Mill Test Certificates (EN 10204 Type 3.1) provided with every shipment.
Versatile Surface Finishes: Available in Black, Pickled & Oiled, Bright, and Polished finishes to suit various applications.
Fast Lead Time: Delivery within 0-45 days after order confirmation, with off-peak season delivery within 15 workdays.
Negotiable MOQ: Minimum Order Quantity of 3-5 tons is negotiable to accommodate different client needs.
Global Market Reach: Serving major markets including North America, Europe, Asia, and Africa with reliable shipping.

Company profile

Dumai Tube (Shanghai) Co., Ltd
High Repeat Buyers ChoiceFast DeliveryFull CustomizationR&D Capabilities
Business Type: Manufacturer/FactoryAverage Response Time: ≤2.95h

About Our Factory & Business Background

AddressShanghai, China
Average Lead TimePeak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsTube, Pipe, Exhaust System, Stainless Steel, Bends, Manifolds, Coil, Aluminized Tubes, 304 Stainless Steel Tubes, Al409L Tubes

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:Are you a manufacturer?
A:
Yes, we are a direct manufacturer with two production facilities in China. One plant, located near Shanghai, focuses on stainless steel and aluminized tubes, while the other, in Shandong Province, specializes in mild steel and aluminized tubes.
Q:Where do you source your raw materials?
A:
We source our raw materials directly from leading steel mills in China to ensure stable quality and full traceability. Our main suppliers include: 1.Stainless Steel: TISCO 2.Aluminized Steel: VAMA (ArcelorMittal joint venture) 3.Mild Steel: Baosteel We can also supply 409AL tubes based on project requirements.
Q:Do your materials comply with international standards?
A:
Yes. Our materials are supplied in accordance with the required chemical composition and mechanical property standards for each grade. For example: 1.AISI 304: produced in full compliance with the relevant chemical and mechanical requirements 2.AISI 409: compliant with required specifications, with tensile strength typically in the range of 360 to 380 MPa, depending on the material batch Material certificates can be provided upon request.
Q:Do you offer annealed, matte surface, or internal seam treatment?
A:
Our standard production does not include annealing, matte finishing, or internal seam pickling/flattening. However, we use laser welding technology, which results in a very small internal weld bead that generally does not interfere with further processing such as mandrel bending. If required, we can arrange outsourced services such as: 1.Annealing 2.Pickling 3.Other surface treatments These services are available at additional cost depending on the specification and order volume.
Q:Can you provide PPAP documentation?
A:
Yes, we can provide Level 3 PPAP documentation when required. Each part number can be supplied with its own complete PPAP package, including a duly signed PSW by an authorized representative.

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