Place of Origin:
Zhejiang,China
Brand Name:
TORICH
Certification:
ISO9001 ISO14001 TS16949
Model Number:
ASTM A519 DIN 2391, EN 10305-1, SAE J524, and GB/T 3639
Products Information:
Size Range:
 OD: 4.0-350mm
 WT:0.5-50mm
 Length: max 12000mm
 Thickwall Steel Tube is our strength and regular production montly, mainly for machinery and engineering parts for our customers.
Steel Grade/Steel Material:
| Steel Grade and Chemical Compositions: | |||||||
| Steel | C | Mn | P | S | Si | Cr | Mo | 
| Grade | max | max | max | max | min | ||
| 1008 | 0.10 | 0.30-0.50 | 0.040 | 0.050 | |||
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 | |||
| 1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | |||
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | |||
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 | |||
| 1035 | 0.32-0.38 | 0.60-0.90 | 0.040 | 0.050 | |||
| 1045 | 0.43-0.50 | 0.60-0.90 | 0.040 | 0.050 | |||
| 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 | 
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 | 
Delivery Condition:
Thermal Treatment:
 1) A-Annealed
 2) N-Normalized
 3) QT-Quenched and Tempered
 4) SR-Stress relieved or Finish Anneal
Steel Tube Characteristic:
 Good concentricity
 Good OD and ID tolerance
 High Precision
 Stable quality
 Smooth Roughness
 TORICH QUALITY ASSURANCE
Production Processs:
Seamess Hollow Steel Tube and Cold Drawing or Cold Rolling Production, to achieve the target price by mandrel and die, the more accuracy we can make is higher than technical standard ASTM A519.
Method of Tube Forming:
 1. Hot-Finished Mechanical Tubing
 2. Cold-Worked Mechanical Tubing
 3. Rough -Turned Mechanical Tubing
 4. Ground Mechanical Tubing
Send your inquiry directly to us