API7-1 4145H Hot Forged Alloy Steel Hollow Bar

1. Grade: AISI 4145H API7-1

2. Size: OD 79-279mm

3. Standard: AISI, API 7-1

4. Certification: ISO9001, SGS, BV,ABS

Product Name	AISI 4145H API7-1 hollow bar
Material	Alloy steel
Surface	Black or Rough turned
Standard	AISI, ASTM, BS, DIN, GB, JIS
Grade	AISI 4145H
Heat treatment	quenching and tempering ,according to customer’s request
Production process	EAF+LF+VD
Used	drill collor,Adapter