1.8928/S690ql Hot Rolled Alloy Boiler Steel Plate

• Customization: Available
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: Round bar
• Composition: Ferrous Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Black or as Required
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Length: 2500-5500mm
• Transport Package: N/M
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7228400000
• Production Capacity: 5000ton/Month

Product Description

APPLICATION:

Steel susceptible to heavily loaded, welded structural constructions, e.g. of cranes, bridges, buildings, tankers, water tanks and floodgates, working at room and reduced temperatures.

TECHNOLOGICAL INFORMATION:

The steel manufacturer decides on the type and concentration of alloying elements (up to the stated values) ensuring required properties. The semi-finished products are delivered as toughened and are not subject to heat treatment on the buyer's premises. Stress relieving after welding should be done under conditions preventing the reduction of the mechanical properties of steel.

SEMI-FINISHED PRODUCTS:

The steel manufacturer decides on the type and concentration of alloying elements (up to the stated values) ensuring required properties. The semi-finished products are delivered as toughened and are not subject to heat treatment on the buyer's premises. Stress relieving after welding should be done under conditions preventing the reduction of the mechanical properties of steel.

CHEMICAL COMPOSITION:

C	Mn	Si	P	S	Cr	Ni	Cu	Mo	V	Nb	Ti	Zr	Al	N	B
Max 0,20	Max 1,70	Max 0,80	Max 0,020	Max 0,010	Max 1,50	Max 2,0	Max 0,50	Max 0,70	Max 0,12	Max 0,06	Max 0,05	Max 0,15	Max 0,015	Max 0,015	Max 0,005

MECHANICAL PROPERTIES:

Effect of the cross-section on mechanical properties
Thickness, mm	3-50		> 50-100		> 100-150
Yield point ReH (Rp0.2), MPa	≥ 690		≥ 650		≥ 630
Ultimate tensile strength Rm, MPa	770-940		760-930		710-900
Elongation A, %	≥ 14
Mechanical properties at the reduced temperature
Temperature, °C	-60	-40		-20		0
Impact energy, KV, J (longitudinal samples)	-	≥ 30		≥ 40		≥ 50
Impact energy, KV, J (transverse samples)	-	≥ 27		≥ 30		≥ 35

INTERNATIONAL STEEL GRADES:

ISO		European Union		Russia
~E 690-E	ISO 4950-3:1995	S690QL	EN 10137-2:1995	-	-
US		Japan		China
~A 514 (Q)	ASTM A 514-00	-	-	~Q 690 E	GB T 16270-96