ISO-3506-1 FASTENERS

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ISO 3506-1 Chemical Composition :

Steel group	Steel grade	Chemical Composition,a mass fraction,%									Footnotes
Steel group	Steel grade	c	Si	Mn	p	s	Cr	Mo	Ni	Cu	Footnotes
Austenitic	A1	0.12	1	65	02	0,15 to 0,35	16 to 19	07	S to 10	1,75 to 2,25	bed
	A2	0.10	1	2	0.05	003	15 to 20	-e	8 to 19	4	fg
	A3	0.08	1	2	0.045	003	17 to 19	-e	9 to 12	1	h
	A4	0.08	1	2	0.045	003	16 to 18,5	2 to 3	10 to 15	4	gi
	AS	0.08	1	2	0.045	003	16 to 18,5	2 to 3	10.5 to 14	1	hi
Martensitic	C1	0,09 to 0.15	1	1	0.05	003	11.5 to 14	-	1	-	i
	C3	0,17to 0.25	1	1	0.04	003	16 to 18	-	1,5 to 2,5	-	-
	C4	0,08to 0.15	1	15	0.06	0,15 to 0,35	12 to 14	06	1	-	bi
Ferritic	F1	0.12	1	1	0.04	003	15 to 18	_j	1	-	kl

ISO 3506-1 Mechanical properties for bolts, screws and studs — Austenitic steel grades :

Steel group	Steel grade	Property class	Tensile strength Rm a min. MPa	Stress at 0,2 °/o permanent strain Rp0,2a min. MPa	Elongation after fracture Ab min. mm
Austenitic	A1,A2, A3,A4, AS	50	500	210	0,6d
		70	700	450	0,4d
		80	800	600	0,3d

ISO 3506-1 Mechanical properties for bolts, screws and studs — Martensitic and ferritic steel grades :

Steel group	Steel grade	Property class	Tensile strength Rma min. MPa	Stress at 0,2 % permanent strain Rp0,2a min MPa	Elongation after fracture Ab min. mm	Hardness
Steel group	Steel grade	Property class	Tensile strength Rma min. MPa	Stress at 0,2 % permanent strain Rp0,2a min MPa	Elongation after fracture Ab min. mm	HB	HRC	HV
Martensitic	C1	50	500	250	0,2d	147 O 209	-	155 to 220
		70	700	410	0,2d	209 to 314	20 to 34	220 to 330
		110C	1 100	820	0,2d	-	36 to 45	350 to 440
	C3	80	800	640	0,2d	228 to 323	21 to 35	240 to 340
	C4	50	500	250	0,2d	147 to 209	-	155 to 220
	C4	70	700	410	0,2d	209 to 314	20 to 34	220 to 330
Ferritic	F1d	45	450	250	0,2d	128 to 209	-	135 to 220
Ferritic	F1d	60	600	410	0,2d	171 to 271	-	180 to 285

Features:

High strength
High resistance to pitting, crevice corrosion resistance
High resistance to stress corrosion cracking, corrosion fatigue and erosion
Good sulfide stress corrosion resistance
Low thermal expansion and higher heat conductivity than austenitic steels
Good workability and weldability.
High energy absorption.
Dimensional accuracy
Excellent finish
Durable
Leak proof
Thermal resistance
Chemical resistance

Applications :

use in Instrumentation
use in Hydraulic & Pneumatic system
use in Automotive industries
use in Structural Purposes
use in Medical
use in Pharmaceutical
use in Economizers
Use in Condenser
Use in Furniture industries
Use in domestic applications
Use in bus body
Use in fencing
Use in Pulp and paper
Use in Offshore construction
Use in Food and pharmaceutical processing
Use in Desalination and wastewater projects
Use in Electrical Submersible Pump

Why Choose Us :

we are able to deliver on time for all grades of Brass Pipe . Our stock house always has storage capacity for keeping lots of order from our clients. We make sure that the packaging of ordered materials is done in the best way.

Although lots of options are available in the market, we still stand apart in the market in the field of manufacturing, packaging and export of our products. What really makes us different from others is our commitment to quality. With a vast experience of over four decades in manufacturing of pipes and tubes, we have great expertise and technical edge for the manufacture.