Stainless Steel | QUALITY TUBE SERVICES

10S 304L

Allowable Working Pressures

mm	Temp °F
	100	150	200	250	300	350	400	450	500	550	600	625	650	675	700	725	750	775
15	19981	19788	19595	18188	16782	15430	14086	13258	12424	11976	11528	11369	11204	11045	10887	10756	10632	10501
20	15747	15595	15444	14334	13224	12169	11107	10452	9790	9439	9087	8963	8832	8708	8584	8480	8377	8280
25	16561	16402	16244	15079	13907	12,169	11680	10990	10301	9928	9556	9425	9287	9156	9025	8922	8811	8708
40	11252	11142	11031	10239	9,446	8,687	7936	7,467	6998	6,743	6488	6398	6309	6219	6129	6060	5984	5916
50	8929	8839	8756	8122	7,495	6,895	6295	5922	5550	5350	5150	5074	5005	4937	4861	4806	4750	4688
65	8094	8012	7936	7363	6,798	6,253	5709	5,371	5033	4854	4668	4606	4537	4475	4413	4357	4309	4254
80	6612	6550	6488	6019	5,550	5,109	4,661	4,385	4,109	3,964	3813	3764	3709	3654	3606	3558	3516	3475
100	5116	5068	5019	4654	4,295	3,951	3,606	3,392	3,178	3,068	2951	2909	2868	2827	2785	2751	2723	2689
150	3861	3826	3785	3516	3240	2,985	2723	2565	2399	2,317	2227	2199	2165	2137	2103	2082	2055	2027
200	3268	3240	3206	2978	2,744	2,523	2,303	2,172	2,034	1,958	1,890	1,861	1834	1806	1779	1758	1737	1717
250	2923	2896	2861	2661	2,454	2,254	2,061	1,937	1813	1,751	1,682	1,662	1,641	1,613	1593	1572	1551	1537
300	2682	2661	2634	2441	2,254	2,075	1,889	1,779	1,668	1,606	1,551	1,524	1503	1482	1462	1448	1427	1413

Allowable working pressures tabulated above were calculated by the formula in para 304, 1.2 (a) of ASA B31.3-1966 code for pressure piping as follows:

T = Pd / 2 (SE + PY – P)

Longitudinally welded pipe weld joint factors are established in para 302.4.3 of ASA B31.3.1966. Longitudinally welded pipe to ASTM specification A358 Class 1 and to ASTM specification A312 with 100% radiography in accordance with para 336.4.2 (e)

40S 304L

Allowable Working Pressures

mm	Temp °F
	100	150	200	250	300	350	400	450	500	550	600	625	650	675	700	725	750	775
15	26862	26607	26345	24455	22559	20,753	18940	17823	16706	16,099	15499	15285	15065	14851	14637	14465	14293	14120
20	21904	21698	21484	19939	18,395	16,919	15,444	14,534	13,624	13,127	12,638	12,466	12,286	12114	11935	11797	11659	11514
25	20491	20291	20091	18650	17202	15,823	14,444	13,589	12,741	12,279	11,817	11,659	11,493	11,328	11162	11031	10900	10769
40	15175	15030	14886	13810	12741	11,721	10,700	10,066	9,439	9,094	8,756	8,632	8,515	8,391	8267	8170	8074	7977
50	12783	12665	12541	11638	10735	9873	9018	8480	7,949	7,660	7,377	7,274	7,170	7,067	6964	6888	6805	6722
65	13982	13844	13713	12728	11742	10797	9859	9273	8694	8377	8067	7956	7839	7729	7619	7529	7439	7350
80	12141	12024	11907	11052	10197	9377	8563	8053	7550	7274	7005	6908	6812	6715	6612	6536	6460	6384
100	10294	10190	10094	9370	8646	7949	7260	6826	6398	6171	5936	5854	5771	5688	5605	5543	5474	5412
150	8198	8122	8039	7460	6881	6329	5778	5440	5095	4916	4730	4661	4599	4530	4468	4413	4364	4309
200	7219	7143	7074	6571	6060	5571	5088	4785	4488	4323	4164	4102	4047	3992	3930	3889	3840	3792
250	6543	6481	6419	5957	5495	5054	4619	4344	4068	3923	3778	3723	3675	3620	3564	3523	3482	3440
300	6129	6074	6012	5578	5150	4737	4323	4068	3813	3675	3537	3489	3440	3392	3337	3302	3261	3220

Allowable working pressures tabulated above were calculated by the formula in para 304, 1.2 (a) of ASA B31.3-1966 code for pressure piping as follows:

T = Pd / 2 (SE + PY – P)

10S 316L

Allowable Working Pressures

mm	Temp °F
	100	150	200	250	300	350	400	450	500	550	600	625	650	675	700	725	750	775
15	19981	19981	19981	19277	18574	16968	15368	14727	14086	13541	13003	12776	12555	12328	12100	11879	11652	11466
20	15747	15747	15747	15196	14637	13376	12114	11611	11107	10680	10245	10073	9894	9715	9542	9363	9191	9039
25	16561	16561	16561	15982	15396	14065	12741	12210	11680	11224	10777	10590	10404	10218	10032	9846	9659	9501
40	11252	11252	11252	10852	10459	9556	8653	8294	7936	7625	7322	7191	7067	6943	6812	6688	6564	6453
50	8929	8929	8929	8611	8294	7584	6867	6577	6295	6053	5805	5709	5605	5509	5405	5309	5205	5123
65	8094	8094	8094	7805	7522	6874	6226	5964	5709	5488	5267	5178	5081	4992	4902	4812	4723	4640
80	6612	6612	6612	6377	6143	5619	5088	4874	4661	4481	4302	4226	4151	4082	4006	3930	3854	3792
100	5116	5116	5116	4937	4757	4344	3937	3771	3606	3468	3330	3268	3213	3158	3096	3040	2985	2937
150	3861	3861	3861	3723	3592	3282	2972	2847	2723	2620	2510	2468	2427	2385	2337	2296	2254	2213
200	3268	3268	3268	3151	3040	2778	2516	2413	2303	2213	2123	2089	2055	2020	1979	1944	1910	1875
250	2923	2923	2923	2820	2716	2482	2248	2151	2061	1979	1903	1868	1834	1799	1772	1737	1703	1675
300	2682	2682	2682	2592	2496	2282	2061	1979	1889	1820	1744	1717	1689	1655	1627	1593	1565	1537

Longitudinally welded pipe to ASTM specification A312 has a weld joint factor of .80, i.e: pressures as tabulated above multiplied by .80.

T = Pd / 2 (SE + PY – P)

Conforming with requirements of 327.4.3, have a weld joint factor of 1.00, i.e: pressures as tabulated above. Longitudinally welded pipe to ASTM specification. A358 Class ll has a weld joint factor of .85, i.e: pressures tabulated above multiplied by .85.

40S 316L

Allowable Working Pressures

mm	Temp °F
	100	150	200	250	300	350	400	450	500	550	600	625	650	675	700	725	750	775
15	26862	26862	26862	25917	24973	22814	20663	19801	18940	18209	17478	17175	16878	16575	16271	15975	15672	15410
20	21904	21904	21904	21132	20360	18609	16851	16147	15444	14851	14251	14010	13762	13514	13272	13024	12776	12569
25	20491	20491	20491	19767	19043	17402	15761	15106	14444	13886	13327	13100	12872	12638	12410	12183	11948	11755
40	15175	15175	15175	14637	14106	12886	11673	11190	10700	10287	9873	9701	9535	9363	9191	9025	8853	8708
50	12783	12783	12783	12335	11886	10859	9832	9425	9018	8667	8322	8177	8032	7887	7743	7605	7460	7336
65	13982	13982	13982	13486	12996	11873	10756	10307	9859	9480	9094	8942	8784	8625	8467	8315	8156	8018
80	12141	12141	12141	11714	11287	10314	9342	8949	8563	8232	7901	7763	7625	7488	7357	7219	7081	6964
100	10294	10294	10294	9928	9570	8742	7915	7584	7260	6977	6695	6584	6467	6350	6233	6122	6005	5902
150	13024	8198	8198	7908	7619	6964	6309	6040	5778	5557	5336	5240	5150	5061	4964	4874	4785	4702
200	7219	7219	7219	6964	6708	6129	5550	5316	5088	4888	4695	4612	4530	4454	4371	4288	4206	4137
250	6543	6543	6543	6315	6088	5557	5033	4826	4619	4440	4261	4185	4109	4040	3964	3895	3820	3758
300	6129	6129	6129	5916	5695	5205	4716	4516	4323	4157	3992	3923	3854	3785	3716	3647	3578	3516

Longitudinally welded pipe to ASTM specification A312 has a weld joint factor of .80, i.e: pressures as tabulated above multiplied by .80.

T = Pd / 2 (SE + PY – P)

Structural Tube

Sectional Properties

The sectional properties in the tables are based on the specified outside dimensions and wall thickness. For square and rectangular sections the corner radii used in the calculations are R Internal = 1,5t where t is the wall thickness.

The masses per unit length are calculated on the basis that steel has a density of 7,85 x 10³ kg/mm³

Torsional constants for most of the sections are available on request.

Steel Qualities

SABS 657 Tubes shall be of steel of chemical composition that complies with the following:

Carbon content at 0,25% maximum.
Sulphur and Phosphorus at 0,05% each, maximum

Materials:

Steel generally used for are Fe37B, C and D….. From ISO/R 630. Other steels from this or other specifications can also be supplied by agreement.

Dimensions:

As per the sizes listed in the sectional properties tables. These are largely in accordance with ISO/DIS 4019 and other sizes can be supplied by agreement. The sizes listed are metric and we will be adopting these sizes as std.

Tolerances:

Outside Dimensions ± 1% with a minimum of ± 0,5mm
Wall Thickness ± 10% with a minimum of ± 0,2mm outside the weld area.
Straightness 0,2% of total length.

Other and closer tolerances can be supplied on request or by agreement.

Wall Thickness

The standard wall thickness available in the Republic of South Africa are:
1,6 | 2,0 | 2,2 | 2,5 | 2,8 | 3,0 | 3,5 | 4,0 | 4,5 | 5,0 | 6,0 mm

Pipes : Stainless Steel

10S 304L

40S 304L

10S 316L

40S 316L

Structural Tube