High-Precision Precision Cold Drawn Welded Steel Tubes with Drawn Over Mandrel ASTM A513 SAE 1020 1026

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High-Precision Precision Cold Drawn Welded Steel Tubes with Drawn Over Mandrel ASTM A513 SAE 1020 1026

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Product Description

📋 Basic Information

Model NO.

DOM Tube

Type

Welded

Technique

Cold Drawn

Material

Carbon Steel

Surface

Oiled

Standard

ASTM 513 Type 5 / EN 10305-2

15-75 mm / 0.5-3 in.

Capacity

50000 Ton/Year

🔍 Product Overview

DOM tubing (Drawn Over Mandrel) is a high-strength steel tube manufactured using a specific cold-drawing process. It refines pre-existing electric resistance welded (ERW) tubing by pulling it through a die and over a mandrel.

This results in:

Precise dimensions
Smooth surfaces
Enhanced mechanical properties

⭐ Key Advantages

Precision: Tight tolerances on OD, ID, and wall thickness.

Surface Finish: Superior finish for high-precision applications.

Concentricity: Maximum concentricity and minimal wall variation.

High Strength: Cold-working process enhances durability.

📐 Specifications & Tolerance

ASTM A513 Type 5 Range
OD	15-75 mm	Wall Thickness	1.5-6 mm
Steel Grade	1010, 1020, 1035, 1040, 4130, 4140, E235, E355
Trade Terms	EXW, FOB, CFR, CIF	MOQ	1 Ton

🎥 Processing & Tubular Parts

Support for steel pipe cutting, precise straightening (up to 0.05mm), and subsequent processing.

🤝 Customer Visits & Shipping

🏭 Production Facility

❓ Frequently Asked Questions

📝 Q1: Are you a manufacturer or a trading company?

A: We are a professional manufacturer for steel pipes and also operate as a highly technical trade company for various steel products, ensuring competitive pricing and expert service.

📝 Q2: Can you provide samples? Is there a cost?

A: Yes, samples can be provided for free. However, the freight cost is covered by the customer and will be returned once a formal cooperation begins.

📝 Q3: Do you guarantee on-time delivery?

A: Absolutely. Honesty is our core tenet. We promise to provide the best quality products and deliver them on time, regardless of market price fluctuations.

📝 Q4: What certifications do you hold?

A: We hold ISO9000, IATF16949, and ISO 14001 certificates. Our products undergo rigorous quality control by professional engineers.

📝 Q5: What are your standard payment terms?

A: For orders over 1000USD, we typically require 30% T/T in advance, with the balance due before shipment or against the B/L copy. Irrevocable L/C at sight is also accepted.

📝 Q6: Do you accept third-party inspections?

A: Yes, we absolutely accept and welcome third-party inspections to ensure quality transparency for our clients.