SPEZILLA TUBE stocks stainless steel Seamless pipe per ASTM A 312 in 304/304L and 316/316L. We supply other stainless grades, including 304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel grades are also supplied.

We supply a full range of pipe schedules ranging from Sch 5 thru Double Extra Heavy. Most products are available in 20′ random length sections, but SPEZILLA can supply stainless steel seamless pipe in most stainless grades in sections exceeding 40′. All stainless steel seamless pipes can be cut to your exact requirements. Some made to order items can be produced in 2-3 weeks.

Nominal Wall Thickness:

Nominal Wall Tolerance Plus 12.5%, Minus 12.5%
These do not conform to the American National Standard for Welded and Seamless Wrought Steel Pipe
(ANSI B 36.10 – 1979)

NPS Designator	Outside Diameter in.	Schedule 10S in.	Schedule 40S in.	Schedule 80S in.	Schedule 160 in.	Schedule XX in.
1/4	0.540	0.065	0.088	0.119
3/8	0.675	0.065	0.091	0.126
1/2	0.840	0.083	0.109	0.147	.188	.294
3/4	1.050	0.083	0.113	0.154	.218	.308
1.0	1.315	0.109	0.133	0.179	.250	.358
1 1/4	1.660	0.109	0.140	0.191	.250	.382
1 1/2	1.900	0.109	0.145	0.200	.281	.400
2	2.375	0.109	0.154	0.218	.343	.436
2 1/2	2.875	0.120	0.203	0.276	.375	.552
3	3.500	0.120	0.216	0.300	.438	.600
3 1/2	4.000	0.120	0.226	0.318		.636
4	4.500	0.120	0.237	0.337	.534	.674
5	5.563	0.134	0.258	0.375	.625	.750
6	6.625	0.134	0.280	0.432	.719	.864
8	8.625	0.148	0.322	0.500	.906	.875
10	10.750	0.165	0.365	0.500	1.125
12	12.750	0.180	0.375	0.500	1.312
14	14.000	0.188	0.375	0.500	1.406
16	16.000	0.188	0.375	0.500	1.594

Minimum Wall Thickness on Inspection:

The following equation, upon which this table is based, may be applied to calculate minimum wall thicknesses from nominal wall thickness:
- tn * 0.875 = tm
  Where:
  tn = nominal wall thickness, in. [mm], and
  tm= minimum wall thicknesses, in. [mm]
- The wall thickness is inch-pound units is rounded to three decimal places in accordance with the rounding method of Practice E29. The wall thickness in SI units is rounded to one decimal place in accordance with the rounding method of Practice E29.
This table is a master table covering wall thicknesses available in the purchase of different classifications of pipe, but it is not meant to imply that all the walls listed herein are
necessarily obtainable for the applicable product specification.

Product Tags:

ASTM A312 TP310 / 310S Stainless Steel Seamless Pipe , SS Seamless Steel Pipe ANSI B36.10

Precision Stainless Steel Tubing

Welded Stainless Steel Tube

Seamless Stainless Steel Tube

Stainless Steel Heat Exchanger Tube

SS Hydraulic Tubing

Stainless Steel Instrument Tubing

SS Sanitary Tubing

Automotive Stainless Steel Tubing

SS Capillary Tube

Stainless Steel Coiled Tubing

Metric SS Tubing

High Purity Stainless Steel Tubing

Bright Annealed Stainless Steel Tube

Duplex Stainless Steel Tube

Ferritic Stainless Steel Tube

Welded Titanium Tubing

Nickel Alloy Tube

ASTM A312 TP310 / 310S Stainless Steel Seamless Pipe , SS Seamless Steel Pipe ANSI B36.10

Nominal Wall Thickness:

NPS Designator

Outside Diameter in.

Schedule 10S in.

Schedule 40S in.

Schedule 80S in.

Schedule 160 in.

Schedule XX in.

Minimum Wall Thickness on Inspection:

astm a192 alloy steel pipe

a691 alloy steel pipe

sa312 stainless steel seamless pipe