1. ASTM A519 seamless alloy steel tube

2. Standard&material: ASTM A519 SAE4130,SAE4140,etc and equivalent standards and steel grades.

3. Size range.  OD:6mm-114mm, W.T: 0.8mm-18mm.

4. Delivery condition: Normalized,  Normalized+tempered, Stress-relieving, Cold-drawn/hard,Cold-drawn/soft.

5. Manfuacturing method: Cold-rolled, cold-drawn.

6. Packing: International packing suitable for sea-transportation.

7. Oil-coating,varnish,marking,or end-protection by plastic caps to be confirmed.

8. Application: these mechnical tubings are mainly for mechnical use in engineering or automotive industry.