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DIN Standard Stainless Steel Threaded Rod M50 Full Threaded Rod

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DIN Standard Stainless Steel Threaded Rod M50 Full Threaded Rod

Country/Region	china
City & Province	zhejiang
Categories	Bolts

Product Details

Stainless Steel M42 -M50 ASTM A193 B7 full threaded rod

DIN975 DIN976 Black Coating Stud Bolt Full Threaded are commonly used in offshore flatform, oil and gas and construction, building to connect.

Stud bolt, Threaded rod (threaded bar), DIN975, DIN976 according to DIN standard. The material can be divided into Class 4.8, 8.8, 10.9, 12.9 for carbon steel; Stainless steel A2-70, A4-80 (304, 316), brass. Aluminum is also available. Size from M3 to M70, length from 100mm to 4000mm. Surface treatment including: Plain, zinc plated, nickel plated, H. D. G., black, dacromet, mechanical zinc plated.

The specification for stud bolt and threaded rod DIN975 DIN976 cover alloy and stainless steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, low temperature, or other special purpose applications. The ASTM A193 specification covers bars, bolts, screws, studs, stud bolts, and wire. The material may be further processed by centerless grinding or by cold drawing. Below are some of the ASTM A193 grades used commonly.

ASTM A193 Grade B7 Chemical Composition

Elements	Range	Product Variation, Over or Under B
Carbon	0.37-0.49 % D	0.02 %
Manganese, max	0.65-1.10 %	0.04 %
Phosphorus, max	0.035 %	0.005 % over
Sulfur, max	0.040 %	0.005 % over
Silicon	0.15 - 0.35 %	0.02 %
Chromium	0.75-1.20 %	0.05 %
Molybdenum	0.15-0.25 %	0.02 %

B Product analysis - Individual determinations sometimes vary from the specified limits on ranges as shown in the tables. The several determinations of any individual element in a heat may not vary both above and below the specified range.

D For bar sizes over 31/2 in. [90 mm], inclusive, the carbon content may be 0.50 %, max. For the B7M grade, a minimum carbon content of 0.28 % is permitted, provided that the required tensile properties are met in the section sizes involved; the use of AISI 4130 or 4130H is allowed.

Screw Thread
d

d
PP	UNC
	UNF
	8UN
u	max	UNC
		UNF
		8UN

0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
20	18	16	14	13	12	11	10	9	8	7	7	6
28	24	24	20	20	18	18	16	14	12	12	12	12
-	-	-	-	-	-	-	-	-	-	8	8	8
0.100	0.111	0.125	0.143	0.154	0.167	0.182	0.200	0.222	0.250	0.286	0.286	0.333
0.071	0.083	0.083	0.100	0.100	0.111	0.111	0.125	0.143	0.167	0.167	0.167	0.167
-	-	-	-	-	-	-	-	-	-	0.250	0.250	0.250

Screw Thread
d

d
PP	UNC
	UNF
	8UN
u	max	UNC
		UNF
		8UN

1.5000	1.6250	1.7500	1.8750	2.0000	2.2500	2.5000	2.7500	3.0000	3.2500	3.5000	3.7500	4.0000
6	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
12	-	-	-	-	-	-	-	-	-	-	-	-
8	8	8	8	8	8	8	8	8	8	8	8	8
0.333	-	0.400	-	0.444	0.444	0.500	0.500	0.500	0.500	0.500	0.500	0.500
0.167	-	-	-	-	-	-	-	-	-	-	-	-
0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250