TP304H Stainless Steel Seamless Pipe
TP304H Stainless steel seamless pipe, also known as 1.4948 stainless steel seamless pipe, is an austenitic stainless steel pipe. It has excellent heat resistance in raised temperatures. ASTM A312 TP304H Stainless steel seamless pipe are widely used in pipeline construction, oil and chemical industry, nuclear technology, and boiler making industry. The increased carbon content delivers a greater tensile and yield strength. The austenitic structure of TP304H stainless steel also gives it excellent toughness, even down to cryogenic temperatures. We supply and manufacture TP304H stainless seamless pipe with a wide range of size, from 10.0mm to 1219mm. The wall thickness of TP304H seamless stainless steel pipe ranges from 0.5mm to 100mm. The common length of each pipe is 5.8m, 6.0m, 11.8m, 12m. The maximum length we produce is up to 18m. Sheye Metal can produce TP304H seamless stainless steel pipes in strict accordance with ASTM, EN, JIS, DIN standard to meet client’s different requirements. ASTM A312 TP304H Stainless steel seamless pipe is the most common product. TP304H stainless seamless pipes can be cut to size and pipe with polished finish it is also available. A lot of processing services, including punching, painting, beveling, chamfering are all available for us. With strong technical force, advanced equipment and skilled craftsmanship, Sheye Metal can manufacture TP304H seamless stainless steel pipe and good quality is guaranteed. For metal, we are serious.
Specification of 304H Stainless Steel Seamless Pipe | |
Size |
OD: 10.0 ~ 1219mm; WT: 0.5 ~ 100mm; Length: 5.8m, 6m, 11.8m, 12m, Max.18m |
Process |
Seamless, Cold Drawn, Cold Rolled, Hot Rolled |
Different Name |
1.4948 Seamless Stainless Steel Pipe |
End |
PE(Plain End), BE(Beveled End), NPT, BW(Butt Weld End) |
Surface |
Aid Pickling, Polishing, Brushing |
Standard |
ASTM A312, ASTM A213, EN10216-5, DIN 17456, DIN 17458, JIS G3459, JIS G3463 |
Theoretical Weight(kg/m) |
Weight/meter = (OD-WT)*WT*0.02491 Both OD and WT in mm. |
Note:
OD is the specified outside diameter.
WT is the specified wall thickness
Stainless steel pipes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Plain ends cut and deburred will be furnished. If threaded ends or ends beveled for welding are desired, give details.
Delivery Conditions a of 304H Seamless Stainless Steel Pipe
Type of Condition |
Surface Condition |
|
HFD |
Hot finished heat treated, descaled |
Metallically Clean |
CFD |
Cold finished heat treated, descaled |
Metallically Clean |
CFA |
Cold finished bright annealed |
Metallically Bright |
CFG |
Cold finished heat treated, ground |
Metallically bright-ground, the type and degree of roughness shall be agreed at the time of enquiry and order b |
CFP |
Cold finished heat treated, polished |
Metallically bright-ground, the type and degree of roughness shall be agreed at the time of enquiry and order b |
Note a : Combinations of the different conditions may be agreed at the time of enquiry and order; |
Chemical Composition of 304H Stainless Steel Seamless Pipe
Element |
UNS S30409(304H) |
Tolerances, % |
C, max |
0.04 to 0.10 |
±0.01 |
Mn, max |
2.00 |
±0.04 |
P, max |
0.045 |
±0.005 |
S, max |
0.030 |
±0.003 |
Si, max |
1.00 |
±0.05 |
Ni |
8.0 to 11.0 |
±0.15 |
Cr |
18.0 to 20.0 |
±0.20 |
Mechanical Properties of 304H Seamless Stainless Steel Pipe and Tube
Alloy |
Temper |
Tensile Strength |
Yield Strength, 0.2% |
Elongation in2 in. or |
UNS S30409 |
Solution Annealed |
515 |
205 |
35 |
ASTM A312 TP304H Stainless Steel Seamless Pipe Tolerance
Tolerances in Wall Thickness of ASTM A312 TP304H Stainless Steel Seamless Pipe
NPS Designator |
Tolerance, % from Nominal |
|
Over |
Under |
|
1/8 to 2-1/2 incl., all t/D ratios |
20 |
12.5 |
3 to 18 inch., t/D up to 5% incl. |
22.5 |
12.5 |
3 to 18 inch., t/D>5% |
15 |
12.5 |
20 and larger, welded, all t/D ratios |
17.5 |
12.5 |
20 and larger, seamless, t/D up to 5% incl. |
22.5 |
12.5 |
20 and larger, seamless, t/D>5% |
15 |
12.5 |
Note: t = Nominal Wall Thickness; D = Ordered Outside Diameter
Tolerances in Outside Diameter of ASTM A312 TP304H Stainless Steel Seamless Pipe
NPS Designator |
Tolerances in Outside Diameter |
|||
Over |
Under |
|||
in. |
mm |
in. |
mm |
|
1/8 to 1-1/2, incl |
1/64 (0.015) |
0.4 |
1/32 (0.031) |
0.8 |
Over 1-1/2 to 4, incl |
1/32 (0.031) |
0.8 |
1/32 (0.031) |
0.8 |
Over 4 to 8, incl |
1/16 (0.062) |
1.6 |
1/32 (0.031) |
0.8 |
Over 8 to 18, incl |
3/32 (0.093) |
2.4 |
1/32 (0.031) |
0.8 |
Over 18 to 26, incl |
1/8 (0.125) |
3.2 |
1/32 (0.031) |
0.8 |
Over 26 to 34, incl |
5/32 (0.156) |
4 |
1/32 (0.031) |
0.8 |
Over 34 to 48, incl |
3/16 (0.187) |
4.8 |
1/32 (0.031) |
0.8 |
Straightness Tolerances of ASTM A312 TP304H Stainless Steel Seamless Pipe
Specified OD, in. |
Specified Wall Thickness, in. |
Maximum Curvature in any 3ft, in. |
Maximum Curvature i Total Length, in. |
Up to 5.0 incl. |
Over 3% OD to 0.5, incl. |
0.03 |
0.010 x length, ft |
Over 5.0 to 8.0, incl. |
Over 4% OD to 0.75, incl. |
0.045 |
0.015 x length, ft |
Over 8.0 to 12.75, incl. |
Over 4% OD to 1.0, incl. |
0.06 |
0.020 x length, ft |
Tests of 304H Stainless Steel Seamless Pipe
1.Chemical Analysis (ASTM E345)
2.Mechanical Properties (Tension: ASTM E8)
3.Nondestructive Test
3.1:100% Hydrostatic Test
3.2:According to ASTM A450/A450M
Major Testing Facility List
No. |
Equipment Name |
Main Specifications |
Accuracy |
1 |
HF Infrared Carbon-sulfur Analyzer HIR-944B |
C:0.0001%-10.0000%; S:0.0001-0.3500% |
0.1ppmm |
2 |
Visible-Infrared Spectrometer HC-2 |
330-820 |
±2nm |
3 |
Nitrogen Oxygen Analyzer EMGA-620W |
O:0-0.1wt%; N:0-0.5wt% |
≤1.0ppm |
4 |
Direct-reading Spectrometer SPECTRO MAXx06 |
C, Si, Mn, P, S, Cr, Mo, Ni, Al, Co, Cu, Nb, Ti, V, W, Pb, Sn, Mg, As, Zr, Bi, Ca, Ce, Sb, Se, Ta, Te, B, Zn, La, N, Fe |
0.001% |
5 |
OBLF Direct-reading Spectrometer GS1000 |
Ti, V, C,P, S, Cu, Sn, Cr, Mn, Ni, Mo, Co, B, W, Nb, Al, Si |
0.001% |
6 |
Handheld Direct-reading Spectrometer XSORT |
Ti, V, Cu, Sn, Cr, Mn, Ni, Mo, Pb, Co, W, Zn, Nb, … |
- |
7 |
Hydraulic Universal Tester WE-600C |
0-600KN |
Grade 1.0 |
8 |
Microcomputer Hydraulic Universal Testing Machine CHT-4605 |
0-600KN |
Grade 1.0 |
9 |
Impact Testing Machine JB-300B/ JB-W300B |
0-300KN (min -196℃) |
2J ±0.1℃ |
10 |
Leeb Hardness Tester TH-160 TH110 |
0-1045HL |
±1HL |
11 |
Micro Vickers MHV-1000 |
(200-300) HV0.05; (400-500)HV0.1; (700-800)HV0.2; (700-800) HV0.5 HV1 |
±5.0%; ±4.0%; ±4.0%; ±3.0%; ±3.0%; |
12 |
Low Load Vickers Hardness Tester HV-10A |
49.03-980N |
-- |
13 |
Brinell Hardness Tester HB-3000B-1 |
8-650HBW |
-- |
14 |
Rockwell Hardness Tester HR-150A-I |
20-88HRA; 20-100HRB; 20-70HRC |
0.5 |
15 |
Metallographic Analysis 4XC; PXS-1020 |
50X-1000X; 10X/20X |
-- |
16 |
Hand-held Roughness Meter TR210 |
≤160μm |
±10% |
17 |
Water-bath HH-501 |
RT--100℃ |
±0.5℃ |
18 |
16 Channel Ultrasonic Testing Machine CTB-108, X2 |
φ120-830mm |
C5 |
19 |
8 Channel Ultrasonic Testing Machine CTB-108 |
φ14-114mm |
C5 |
20 |
Double Channel Ultrasonic Testing Machine CUT-2A |
0-100db |
1db |
21 |
Ultrasonic Testing Machine CTS-23/CTB106/CUT512G |
φ89-508mm; φ14-114mm; 0-100db |
C5; C5; 1db |
22 |
Eddy Current Flaw Detector ECT-308;ECT-306E;IDEA-4D; G-8B; ET-910B |
φ10-89mm, φ89-168mm; φ219-1200mm; 10-10MHz, 0-99db; 14-114 |
A; -; A; A; A |
23 |
Hydrostatic Testing Machineφ10-133mm; φ133-610mm; φ630-1500mm |
30MPa; 30MPa; 50MPa; |
-- |
24 |
X-ray Detector XY2515; HK320; XYD225 |
WT≤50mm; WT≤50mm; WT≤20mm; |
-- |
25 |
X-ray Video Detector XYD225 |
WT≤8mm |
-- |
26 |
Ultrasonic Flaw Detector (Welded) SPUT |
Od:168-1200mm; WT:3-40MM; L:4-12.5m |
-- |
Reference Projects regarding TP304H Stainless Steel Seamless Pipe
Clients |
Project Name |
Specifications |
China National Offshore Oil Refining |
Huizhou Refinery Project 102 & 109 Part Hydrogen Device |
ASTM A312 TP304H Stainless Steel Seamless Pipe 406*13mm |
China Shenhua Coal to Liquid and Chemical Co.,LTD |
Coal Chemical Industry |
ASTM A312 TP304H Stainless Steel Seamless Pipe |
HQCEC |
Ningxia Chemical Industry 45/80 |
ASTM A312 TP304H Stainless Steel Seamless Pipe |
Suzhou Tianwo Technology Limited Liability Company |
-- |
GB 13296-2013 TP304 TP304H Stainless Steel Seamless Pipe |
The Linde A G Group Selas Fluid Processing Corporation |
Hanwha Chemical Corporation EDC project |
SMLS TP304H Seamless Stainless Pipe |
Alstom Power Energy Recovery Gmbh |
Project 123117, 123116 |
Welded TP304H Stainless Steel Pipe 88.9*5.49, 88.9*4mm |
Bharat Heavy Electricals Limited |
-- |
TP304H Stainless Seamless Tube 51*7.1, 76.2*5.08, 60.3*3.91, 38.1*3.6mm |
Packing Information of 304H Stainless Steel Seamless Pipe
304H Stainless steel seamless pipes from Sheye Metal are packed according to the customer's requirement. To avoid any damage which might be caused during international transportation, we provide some optional packaging methods, including woven bags, plywood cases, and wooden boxes.
If you are going to buy high quality tp304h stainless steel seamless pipe in stock, please feel free to contact Sheye Metal, which is one of the well-known manufacturers and suppliers of good tp304h stainless steel seamless pipe.