Esparrago B7, A193 Grado B7, Stud Bolt ASTM A193 Gr. B7

Modèle NO .: A193 Grado B7 Type: Round Head Head Style: Round Grade: B7 Finition: Politesse Stud Bolt: Esparragos Stud Bolt A193 Grado B7 Origine: Chine Matériau: Haute résistance Acier Raccord: Common Bolt Standard: DIN, ANSI, JIS, GOST Application: Machines Autre matériel: ASTM A193 B7 Stud Bolt avec deux ASTM A194 2h Nuts Marque déposée: C & N C & N offre une qualité élevée de ESPARRAGOS STUD BOLT A193 Grado B7 w / 2 NUTS A194 2H
Boulon ASTM A193 B7 avec deux écrous ASTM A194 2H

Diamètre: 1/4 "~ 3 3/4"
Longueur: 20mm ~ 6000mm (habituellement 12 pieds)
Grade: B7
Standard: M6-M100

B7	Alloy steel, AISI 4140/4142 quenched and tempered
B8	Class 1 Stainless steel, AISI 304, carbide solution treated.
B8M	Class 1 Stainless steel, AISI 316, carbide solution treated.
B8	Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M	Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
B16	A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service.

Propriétés mécaniques
Marqueurs d'identification de Bolt-Grade

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min
B7	Up to 2-1/2	125	105	16	50
	2-5/8 - 4	115	95	16	50
	4-1/8 - 7	100	75	18	50
B8 Class 1	All	75	30	30	50
B8M Class 1	All	75	30	30	50
B8 Class 2	Up to 3/4	125	100	12	35
	7/8 - 1	115	80	15	35
	1-1/8 - 1-1/4	105	65	20	35
	1-3/8 - 1-1/2	100	50	28	45
B8M Class 2	Up to 3/4	110	95	15	45
	7/8 - 1	100	80	20	45
	1-1/8 - 1-1/4	95	65	25	45
	1-3/8 - 1-1/2	90	50	30	45
B16	Up to 2-1/2	125	105	18	50
	2-5/8 - 4	110	95	17	45
	4-1/8 - 7	100	85	16	45

Composition chimique des matériaux

Element	B7 (AISI 4140)	B8 (AISI 304)	B8M (AISI 316)	B16 (AISI 4140)
Carbon	0.37 - 0.49%	0.08% max	0.08% max	0.37 - 0.49%
Manganese	0.65 - 1.10%	2.00% max	2.00% max	0.65 - 1.10%
Phosphorus, max	0.035%	0.045%	0.045%	0.035%
Sulfur, max	0.040%	0.030%	0.030%	0.040%
Silicon	0.15 - 0.35%	1.00% max	1.00% max	0.15 - 0.35%
Chromium	0.75 - 1.20%	18.0 - 20.0%	16.0 - 18.0%	0.75 - 1.20%
Nickel		8.0 - 11.0%	10.0 - 14.0%
Molybdenum	0.15 - 0.25%		2.00 - 3.00%	0.15 - 0.25%

Noix, boulons et rondelles recommandés

Bolt Grade	Nuts	Washers
B7	A194 Grade 2H	F436
B8 Class 1	A194 Grade 8	SS304
B8M Class 1	A194 Grade 8M	SS316
B8 Class 2	A194 Grade 8	SS304
B8M Class 2	A194 Grade 8M	SS316

Groupes de Produits : Boulons en acier inoxydable