Cold Drawn Seamless Steel Tube
HEVO STEEL supplies cold-drawn seamless steel tubes for manufacturers who need controlled dimensions and a clearly specified delivery condition. Send the outside diameter, wall thickness, material and length you require. We can coordinate cutting, machining and surface treatment with the tube order, so you receive material prepared for your next operation.



Materials and Delivery Conditions
To ensure the quality and meet the demands of seamless steel tubes for HEVO STEEL, both material selection and adherence to recognized standards are critical.
By systematically addressing these factors and rigorously adhering to recognized standards, HEVO STEEL can ensure that its seamless steel tubes consistently meet both quality expectations and specific application demands.
Dimensional Range
| Parameter | Confirmed value |
|---|---|
| Outside diameter | |
| Wall thickness | |
| Length |
Applicable Standards
GB/T3639, ASTM A106, ASTM A519, ASTM A179/A192, EN 10305-1, EN 10305-2, DIN 2391, JIS G3445, JIS G4051, GOST 8734, GOST 12132, etc.
Steel Grades
10#, 20#, 35#, 45#, Q355B, 25Mn, 16MnCr5, 20MnCr5, 30CrMo, 35CrMo, 42CrMo, 20Cr, 40Cr, E235, E255, E355, ST37, ST45, ST52, ND(09CrCuSb), ASTM A106 (Grades A, B, C), ASTM A53, ASTM A519 ( 1010, 1020, 1026, 1035, 1045), 4130, 4140, 34CrMo4, 42CrMo4, 25CrMo4, E215, E235, E355, STKM11A to STKM20A
Delivery Condition
Cold drawn/hard (+C) (BK)
Cold drawn/soft (+LC) (BKW)
Cold drawn and stress relieved (+SR) (BKS)
Annealed (+A) (GBK)
Normalized (+N) (NBK)
Quenched and Tempered (QT)
all in one company of seamless steel tube
HEVO STEEL combines its own production with partner-factory processing and supply. The manufacturing route, inspection requirements and included operations are defined for each order. Equipment and process examples illustrate the work involved; they do not mean every operation is performed in one facility.

Pipe piercing machine

Acid washing, phosphating, saponification

cold drawn machine

cold rolling machine

Annealing furnace

Multi-roller straightening machine

Point straightening machine

CNC Center

SRB Machine | Honing Machine

Chemical composition analyzer

Tensile testing machine

Hardness Tester
APPLICATIONS OF SEAMLESS STEEL TUBE
HEVO STEEL’s seamless steel tubes are widely used in petroleum equipment, finned tubes, U-tube heat exchangers, hydraulic cylinders, automotive parts, bushings, and thrust rods.
Processing, Surface Treatment and Packing
HEVO STEEL can coordinate tube supply with specified cutting, threading, turning, milling, grinding, bending and surface treatment. Describe the required condition at delivery and the work your workshop will complete, so the quotation covers the correct processing and packing.

Cutting to length

polishing

honing

shot blasting

Anti-rust oil

Zinc-based Surface Protection

painting & Marking

Steel pipe beveling

pipe plastic cap

Seaworthy Package

Plywood packaging

Wooden box
Contact HEVO STEEL – Seamless Steel Tube Solutions
HEVO STEEL is a leading manufacturer of seamless steel tubes for industrial applications. We provide high-quality, precision-engineered tubing with customizable options to meet your project needs. Contact us for product details, pricing, or technical support.








