Hot Rolled Seamless Steel Tubes 30HGSA/30CrMnSIA
Hot Rolled Seamless Tubes 30ХГСА (30HGSA acc. to GOST 8731-1974 or GOST 32528-2013)
GOST 32528-2013 Seamless cold-deformed steel pipes 30HGSA/30CrMnSiA hollow steel bars
General for 30HGSA/30CrMnSiA hollow steel
30HGSA is a steel for quenching and tempering, which has a good combination of strength and
toughness in the quenched and tempered condition. After oil quenching it will be through hardened
up toØ60 mm bar diameter. The micro structure of bigger dimensions is not fully martensite. The
steel is applicable to induction hardening. The surface hardness will exceed min. 53 HRC. 30HGSA
can be delivered M-treated in order to optimise the machinabilty.
Standard
This product specification is based on EN 10083-3:2006 and the steel will meet the requirements of
this standard.
The hot rolled steel pipes can also be delivered according to following European Standards:
▪ EN 10250-3 Open die steel forgings for general engineering purposes. Part 3: Special alloy steels
▪ EN 10263-4 Steel rod, bars and wire for cold heading and cold extrusion
▪ EN 10269 Steels for fasteners with specified elevated and/or low temperatures properties
▪ EN 10277-5 Bright steel products. Steels for quenching and tempering
▪ EN 10297 Seamless circular steel tubes for mechanical and general engineering purposes
▪ EN 10305 Seamless hot rolled steel tubes for precision applications
▪ prEN 10343 Steels for quenching and tempering for construction purposes
The chemical composition of 30ХГСА (30HGSA)/30CrMnSiA hot rolledSteel pipes:
| Grade | C | Mn | P ≤ | S ≤ | Si | Cr | Mo |
| 30CrMnSiA | 0.28--0.34 | 0.80--1.10 | 0.035 | 0.035 | 0.90--1.20 | 0.80--1.10 | max.0.15 |
| 30HGSA | 0.28--0.34 | 0.80--1.10 | 0.04 | 0.04 | 0.90--1.20 | 0.80--1.10 | max.0.15 |
Delivery Condition: +C, +LC, +SR, +A, +N
