Forged round bar Φ80–Φ1200 mm, forging ratio ≥4:1, UT to GB/T 6402 or ASTM A388.
| Diameter | Φ80–Φ1200 mm standard; Φ1500 mm on request |
|---|---|
| Length | 1–18 m random, or fixed length cut |
| Forging ratio | ≥4:1 |
| Standards | GB/T 3077, GB/T 6402 (UT), ASTM A388, SEP 1921 |
| Heat treatment | Normalised, annealed, quenched and tempered |
| Delivery state | Black, ground, turned, annealed or finish machined |
Forged bar is what you buy when the part has to be sound in the centre as well as the skin. A forging ratio of at least 4:1 breaks up the cast structure, closes porosity and gives a microstructure that responds predictably to heat treatment.
Grain size 6 or finer, hydrogen ≤2.0 ppm, non-metallic inclusion ratings ≤2.0 (coarse and fine series) on the grades where these are specified.
Options: electric-furnace melting plus ladle refining and vacuum degassing as standard, electroslag remelting for higher cleanliness.
Diameter Φ80–Φ1200 mm, with Φ1500 mm on special order; length 1–18 m or cut to fixed length.
Black surface tolerance −0/+3 to −0/+5 mm; turned −0/+2 mm; straightness ≤3 mm per metre.
Seamless rolled rings up to 7.5 m outside diameter, IT7–IT9 tolerance.
Specifications
Forged square billet 40–1000 mm, dense core, for dies, tools and machined blocks.
Specifications
Non-standard forgings to drawing — complex profiles, thin walls, tight tolerances.
SpecificationsQuotes within one business day. Send grade, size, pressure class, face type and quantity — a drawing works better than a description.
