Kor-Lok: MRAMCO - The Right Tubing Connection

Chemical Composition & Mechanical Property
Spec			Chemical Composition (%)
KS	ASTM	JIS	C	Si	Mn	P max.	S max.	Ni	Cr	Mo	OTHERS
STS304TB		SUS304TB	≤ .08	≤1.00	≤2.00	.040	.030	8.00~ 11.00	18.00~ 20.00
	TP304		≤ .080	≤ .75	≤2.00	.040	.030	8.00~ 11.00	18.00~ 20.00
STS304LTB		SUS304LTB	≤ .030	≤1.00	≤2.00	.040	.030	9.00~ 13.00	18.00~ 20.00
	TP304L		≤ .035	≤ .75	≤2.00	.040	.030	8.00~ 13.00	18.00~ 20.00
STS309TB		SUS309TB	≤ .15	≤1.00	≤2.00	.040	.030	12.00~ 15.00	22.00~ 24.00
STS310TB		SUS310TB	≤ .15	≤1.50	≤2.00	.040	.030	19.00~ 22.00	24.00~ 26.00
STS316TB		SUS316TB	≤ .08	≤1.00	≤2.00	.040	.030	10.00~ 14.00	16.00~ 18.00	2.00~ 3.00
	TP316		≤ .08	≤ .75	≤2.00	.040	.030	11.00~ 14.00	16.00~ 18.00	2.00~ 3.00
STS316HTB	TP316H	SUS316HTB	.04~ .10	≤ .75	≤2.00	.030	.030	11.00~ 14.00	16.00~ 18.00	2.00~ 3.00
STS316LTB		SUS316LTB	≤ .030	≤1.00	≤2.00	.040	.030	12.00~ 16.00	16.00~ 18.00	2.00~ 3.00
	TP316L		≤ .035	≤ .75	≤2.00	.040	.030	10.00~ 15.00	16.00~ 18.00	2.00~ 3.00
STS321TB		SUS321TB	≤ .08	≤1.00	≤2.00	.040	.030	9.00~ 13.00	17.00~ 19.00		Ti:5×C% OVER
	TP321		≤ .08	≤ .75	≤2.00	.040	.030	9.00~ 13.00	17.00~ 20.00
STS347TB		SUS347TB	≤ .08	≤1.00	≤2.00	.040	.030	9.00~ 13.00	17.00~ 19.00		Nb10×C%OVER
	TP347		≤ .08	≤ .75	≤2.00	.040	.030	9.00~ 13.00	17.00~ 20.00
STS347HTB		SUS347HTB	.04~ .10	≤1.00	≤2.00	.030	.030	9.00~ 13.00	17.00~ 20.00		Nb8×C%~1.0
STS410TB		SUS410TB	≤ .15	≤1.00	≤1.00	.040	.030	≤ .60	11.50~ 13.50
STS430TB		SUS430TB	≤ .12	≤ .75	≤1.00	.040	.030	≤ .60	16.00~ 18.00
STS304TP		SUS304TP	≤ .08	≤1.00	≤2.00	.040	.030	8.00~ 11.00	18.00~ 20.00
	TP304		≤ .08	≤ .75	≤2.00	.040	.030	8.00~ 11.50	18.00~ 20.00
STS304HTP	TP304H	SUS304HTP	.04~ .10	≤ .75	≤2.00	.040	.030	8.00~ 11.00	18.00~ 20.00
STS304LTP		SUS304LTP	≤ .03	≤1.00	≤2.00	.040	.030	9.00~ 13.00	18.00~ 20.00
	TP304L		≤ .035	≤ .75	≤2.00	.040	.030	8.00~ 13.00	18.00~ 20.00
STS309TP		SUS309TP	≤ .15	≤1.00	≤2.00	.040	.030	12.00~ 15.00	22.00~ 24.00
STS310TP		SUS310TP	≤ .15	≤1.50	≤2.00	.040	.030	19.00~ 22.00	24.00~ 26.00
STS316TP		SUS316TP	≤ .08	≤1.00	≤2.00	.040	.030	10.00~ 14.00	16.00~ 18.00	2.00~ 3.00
	TP316		≤ .08	≤ .75	≤2.00	.040	.030	12.00~ 14.00	16.00~ 18.00	2.00~ 3.00
STS316HTP		SUS316HTP	.04~ .10	≤ .75	≤2.00	.030	.030	11.00~ 14.00	16.00~ 18.00	2.00~ 3.00
STS316LTP		SUS316LTP	≤ .030	≤1.00	≤2.00	.040	.030	12.00~ 16.00	16.00~ 18.00	2.00~ 3.00
	TP316L		≤ .035	≤ .75	≤2.00	.040	.030	10.00~ 15.00	16.00~ 18.00	2.00~ 3.00
STS321TP		SUS321TP	≤ .08	≤1.00	≤2.00	.040	.030	9.00~ 13.00	18.00~ 19.00		Ti:5×C%OVER
	TP321		≤ .08	≤ .75	≤2.00	.040	.030	9.00~ 13.00	17.00~ 20.00
STS329JITP		SUS329JITP	≤ .08	≤1.00	≤1.50	.040	.030	3.00~ 6.00	23.00~ 28.00	1.00~ 3.00
STS347TP		SUS347TP	≤ .08	≤1.00	≤2.00	.040	.030	9.00~ 13.00	17.00~ 19.00		No10×C%OVER
	TP347		≤ .08	≤ .75	≤2.00	.040	.030	9.00~ 13.00	17.00~ 20.00
STS347TP		SUS347HTP	.04~ .10	≤1.00	≤2.00	.030	.030	9.00~ 13.00	17.00~ 20.00		No8×C%~1.0
	TP347H		.04~ .10	≤ .75	≤2.00	.040	.030	9.00~ 13.00	17.00~ 20.00

Mechanical Property					Remark
Tensile Strength		Yield Strength		Elongation(%)
kg/mm2	N/mm2	kg/mm2	N/mm2	(Min)
53	520	21	205	35

49	480	18	175	35

53	520	21	205	35
53	520	21	205	35
53	520	21	205	35

53	520	21	205	35
49	480	18	175	35

53	520	21	205	35

53	520	21	205	35

53	520	21	205	35
42	410	21	205	20
42	410	25	245	20
53	520	21	205	35

53	520	21	205	35
49	480	18	175	35

53	520	21	205	35
53	520	21	205	35
53	520	21	205	35

53	520	21	205	35
49	480	18	175	35

53	520	21	205	35

60	590	40	390	18
53	520	21	205	35

53	520	21	205	35

Weight Table for Metric Tube
(ASTM A269, A213)

SIZE O.D × W.T	WEIGHT (kg/M)
6 × 1 6 × 1.5	0.125 0.169
8 × 1 8 × 1.5 8 × 2	0.175 0.244 0.301
10 × 1 10 × 1.5 10 × 2	0.226 0.320 0.401
12 × 1 12 × 1.5 12 × 2	0.276 0.395 0.501
14 × 1 14 × 2	0.326 0.602
15 × 1 15 × 1.5 15 × 2	0.351 0.508 0.652
16 × 1 16 × 1.5 16 × 2 16 × 2.5	0.376 0.545 0.702 0.846
18 × 1 18 × 1.5 18 × 2 18 × 3	0.426 0.620 0.802 1.128
20 × 1.5 20 × 2 20 × 2.5 20 × 3	0.696 0.903 1.097 1.278
22 × 1 22 × 1.5 22 × 2	0.526 0.771 1.003
25 × 1.5 25 × 2 25 × 2.5 25 × 3	0.884 1.153 1.410 1.655

Cold drawn.
The weights shown in this table are theoretical and are provided only as a guide.
★ Stock Available

Proper tubing is essential to the performance of a tubing system. Consider a system's pressure, flow, temperature, environment and compatibility with the process fluids when choosing the tubing material, size and wall thickness.

Wall Thickness

The wall thickness selection should be based on the operating pressure, temperature and shock conditions. Fully annealed tubing is recommended. Stainless Steel Tubing having a hardness of less than Rockwell Rb90 should be used.

Cold Drawn Tube A213 and A271
O.D 1-1/2" and under Over 20% Under 0%

Cold Drawn Tube A269
O.D Less than 1/2" Over and Under 15%
1/2" to less than 8" Over and Under 10%

Cold Drawn Pipe A312 and A376
O.D All size Under 12.5%

Seamless Stainless Steel Tubes

Grades in regular production to ASTM A269 : TP304, TP304L, TP316, TP316L, TP321, TP347.
Grades in regular production to ASTM A213 : As stated for A269 plus TP304H, TP316H, TP321H, TP347H, TP310S.
Other grades are available on application.

The weights shown in this table are theoretical and are provided only as a guide.

Cold drawn

SWG gauge wall thickness

Outside
diameter

mm
0.711
inches
0.028

inches

kg/ft
kg/m

1/4
.250

6.350

0.030
0.100

0.038
0.124

0.047
0.156

0.058
0.191

0.067
0.219

5/16
.313

7.938

0.039
0.128

0.049
0.160

0.062
0.204

0.078
0.256

0.091
0.300

0.106
0.349

3/8
.375

9.525

0.048
0.156

0.060
0.196

0.077
0.252

0.098
0.320

0.116
0.379

0.138
0.453

0.147
0.483

1/2
.500

12.700

0.065
0.212

0.082
0.268

0.106
0.349

0.137
0.449

0.165
0.540

0.202
0.662

0.218
0.716

0.233
0.765

5/8
.625

15.875

0.082
0.269

0.104
0.341

0.136
0.445

0.176
0.578

0.214
0.701

0.265
0.871

0.289
0.949

0.312
1.02

3/4
.750

19.050

0.099
0.325

0.126
0.413

0.165
0.541

0.215
0.706

0.263
0.861

0.329
1.08

0.360
1.18

0.390
1.28

7/8
.875

22.225

0.116
0.381

0.148
0.485

0.194
0.638

0.254
0.834

0.312
1.02

0.393
1.29

0.431
1.41

0.468
1.54

1
1.000

25.400

0.133
0.437

0.170
0.557

0.224
0.734

0.294
0.963

0.361
1.18

0.457
1.50

0.502
1.65

0.547
1.79

		BWG gauge wall thickness
Outside diameter		22	20	18	16	14	12	11	10
Outside diameter		mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028	mm 0.711 inches 0.028
inches	mm	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m	kg/ft kg/m
1/4 .250	6.350	0.030 0.100	0.037 0.121	0.048 0.158	0.059 0.193	0.068 0.223
5/16 .313	7.938	0.039 0.128	0.048 0.156	0.063 0.208	0.079 0.259	0.094 0.307
3/8 .375	9.525	0.048 0.156	0.058 0.191	0.078 0.257	0.099 0.324	0.119 0.389	0.142 0.466	0.150 0.492
1/2 .500	12.700	0.065 0.212	0.080 0.262	0.108 0.355	0.139 0.454	0.170 0.556	0.209 0.685	0.223 0.733	0.240 0.788
5/8 .625	15.875	0.082 0.269	0.101 0.332	0.138 0.454	0.178 0.585	0.220 0.723	0.276 0.904	0.297 0.974	0.322 1.06
3/4 .750	19.050	0.099 0.325	0.123 0.402	0.168 0.552	0.218 0.716	0.271 0.890	0.342 1.12	0.370 1.21	0.404 1.33
7/8 .875	22.225	0.116 0.381	0.144 0.472	0.198 0.651	0.258 0.846	0.322 1.06	0.409 1.34	0.444 1.46	0.486 1.60
1 1.000	25.400	0.133 0.437	0.165 0.543	0.228 0.750	0.298 0.977	0.373 1.22	0.476 1.56	0.517 1.70	0.568 1.87

Stainless Steel Seamless Tubes