Forged hollow bars

Our annual forging capacity is 10,000 tons and we have more than ten scientific and technical personnel. Our extensive raw material inventory includes structural carbon steel, alloy structural steel,

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Forged hollow bars


Our annual forging capacity is 10,000 tons and we have more than ten scientific and technical personnel. Our extensive raw material inventory includes structural carbon steel, alloy structural steel, carbon tool steel, alloy tool steel, stainless steel and non-magnetic steel etc. We produce large and medium sized forgings including 4145H mod drilling stabilizer forging, reamer forging, and wellhead components forgings, etc.

Tiptop supplies a wide range of forged hollow bars, which has good resistance and high strength and hardness. Forged hollow bar is usually made from a solid round metal billet which is related and pushed or pulled over a form until the material is shaped into a hollow tube.

Steel ingot making

EAF+LF+VD/VAD or ESR

Manufacturing process

EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining

Report

Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report

Nondestructive test (NDT)

UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT (penetrant testing)


Equipment List

Model

Qty

Intermediate Frequency Heat Treatment Quenching Furnace

ZP-800KW

1

Medium Frequency Heat Treatment Tempering Furnace

ZP-400KW

1

Four Pillars Multiple Use Press Machine

Y43-500 Ton

1

Band Sawing Machine

GB4028

8

Horizontal Lathe

CT61100

7

Deep Hole Drilling and Boring Machine

TQ2132

2

CNC Pipe Threading Lathe

STC34100bpipe

3

CNC Pipe Threading Machine

S1-262A

3

Gantry Type Milling Machine

XG2080T*5m

1

CNC Gantry Milling Machine

XG2310×65

1