ASTM A193 B7 Grade Threaded Rod

• Material: Carbon Steel
• Surface Finishing: Zinc Plated
• Grade: B7
• Certification: ISO
• Customized: Customized
• Tensile: Min.125ksi
• Model NO.: JX21TB001
• HRC: Max. 35
• Cert.: FPC Bc1
• Other Finish: HDG, Dacromet, Black, Ptee, Yzp
• Transport Package: Bundles and Pallet
• Specification: 1/4"-4"; M6-M100
• Trademark: HYZ
• Origin: Hangzhou
• HS Code: 7318190000
• Production Capacity: 10000tons/Year

Product Description

Product Description

ASTM A193 Grade B7 thread Bars / Stud Bolts 
 

Standard:	ASTM A193, ASTM A320
Size:	1/4" - 4", M5 - M100
Material:	Carbon Steel, Alloy Steel, Stainless Steel
Available Grade:	ASTM A193/193M Gr. B7, B7M, B8, B8M, B16
	ASTM A320/A320M Gr. L7, L7M, L43
	SAE J429 Gr. 2,5,8
	DIN 975/976 Class 4.8, 8.8, 10.9
Thread Type:	UNC
Available Finish:	Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, Nickel, Hot Dip Galvanized
Packing way:	Bundles and pallet

 

Product Parameters

A193 Chemical Properties

Element	B7 (AISI 4140)	B8 (AISI 304)	B8M (AISI 316)
Manganese	0.75 - 1.00%	2.00% max	2.00% max
Phosphorus, max	0.00035	0.00045	0.00045
Sulfur, max	0.0004	0.0003	0.0003
Silicon	0.15 - 0.35%	1.00% max	1.00% max
Chromium	0.80 - 1.10%	18.0 - 20.0%	16.0 - 18.0%
Nickel		8.0 - 11.0%	10.0 - 14.0%
Molybdenum	0.15 - 0.25%		2.00 - 3.00%

 

 

A193 Mechanical Properties

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min	HBW	HRC
B7	Up to 2-1/2	125	105	16	50	321 max	35 max
	2-5/8 - 4	115	95	16	50
	4-1/8 - 7	100	75	18	50
B8 Class 1	All	75	30	30	50	223 max	35 max
B8M Class 1	All	75	30	30	50	223 max	96 max
B8 Class 2	Up to 3/4	125	100	12	35	321 max	35 max
	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	321 max	35 max
	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

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