Alloy Seamless Steel Pipe ASTM A333, A335 P5/P9/P11/P22/P91, DIN 17175, JIS G3458

• Customization: Available
• Warranty: 1 Year
• Type: Seamless
• Model NO.: seamless pipe
• Technique: Hot Rolled
• Material: Alloy Steel
• Surface Treatment: Varnishing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Construction & Decoration, Special Purpose
• Section Shape: Round
• Delivery Time: in Stock
• Standard: JIS/DIN/En/ASTM
• Function: Transportation
• Length: 1-36m
• Price: Competitive Price
• Transport Package: Bundle
• Specification: 10.29-2032
• Origin: China
• HS Code: 7507110000
• Production Capacity: 1000ton/Year

Product Description

An Alloy Steel Seamless Pipe's working pressure capability is around 20% higher than a welded pipe, similar to most alloys. As a result, the use of a seamless pipe is justified in applications that require a higher working pressure. The cost is substantially more than a welded pipe, despite the fact that it is stronger. Alloy Steel Seamless Pipes & Tubes are utilised in applications that demand moderate corrosion resistance, as well as good durability and a low cost.

 

Alloy Steel Seamless Tube Application

- Offshore Oil Drilling

- Power Generation

- Petrochemicals

- Gas Processing

- Specialty Chemicals

- Pharmaceuticals

- Pharmaceutical Equipment

- Chemical Equipment

- Sea Water Equipment

- Heat Exchangers

- Condensers

- Pulp and Paper Industry

Specification

Chemical Composition

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %
0.05-0.15	0.30-0.60	0.025 max	0.025 max	0.50-1.00	1.00-1.50	0.44-0.65

 

Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
415 min	205 min	30 min

 

Outside Diameter & Tolerance

ASTM A450	Hot rolled	Outside Diameter, mm	Tolerance, mm
		OD≤101.6	+0.4/-0.8
		101.6	+0.4/-1.2
		190.5	+0.4/-1.6
	Cold Drawn	Outside Diameter, mm	Tolerance, mm
		OD<25.4	±0.10
		25.4≤OD≤38.1	±0.15
		38.1	±0.20
		50.8≤OD<63.5	±0.25
		63.5≤OD<76.2	±0.30
		76.2≤OD≤101.6	±0.38
		101.6	+0.38/-0.64
		190.5	+0.38/-1.14
ASTM A530 & ASTM A335	NPS	Outside Diameter, inch	Tolerance, mm
		1/8≤OD≤1-1/2	±0.40
		1-1/2	±0.79
		4	+1.59/-0.79
		8	+2.38/-0.79
		OD>12	±1%

 

Wall Thickness & Tolerance

ASTM A450	Hot rolled	Outside Diameter, mm	Tolerance, %
		OD≤101.6, WT≤2.4	+40/-0
		OD≤101.6, 2.4	+35/-0
		OD≤101.6, 3.8	+33/-0
		OD≤101.6, WT>4.6	+28/-0
		OD>101.6, 2.4	+35/-0
		OD>101.6, 3.8	+33/-0
		OD>101.6, WT>4.6	+28/-0
	Cold Drawn	Outside Diameter, mm	Tolerance, %
		OD≤38.1	+20/-0
		OD>38.1	+22/-0
ASTM A530	NPS	Outside Diameter, inch	Tolerance, %
		1/8≤OD≤2-1/2	+20.0/-12.5
		3≤OD≤18, WT/OD≤5%	+22.5/-12.5
		3≤OD≤18, WT/OD>5%	+15.0/-12.5
		OD≥20, WT/OD≤5%	+22.5/-12.5
		OD≥20, WT/OD>5%	+15.0/-12.5

Standard

ASTM A335-for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

ASTM A519-for Seamless Carbon and Alloy Steel Mechanical Tubing

ASTM A213-for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchange Tubes

ASTM ASME (S)A-335/(S)A-335M Grade and Chemical Composition

 

Grade	UNS	C≤	Mn	P≤	S≤	Si≤	Cr	Mo
P1	K11522	0.10~0.20	0.30~0.80	0.025	0.025	0.10~0.50	-	0.44~0.65
P2	K11547	0.10~0.20	0.30~0.61	0.025	0.025	0.10~0.30	0.50~0.81	0.44~0.65
P5	K41545	0.15	0.30~0.60	0.025	0.025	0.50	4.00~6.00	0.44~0.65
P5b	K51545	0.15	0.30~0.60	0.025	0.025	1.00~2.00	4.00~6.00	0.44~0.65
P5c	K41245	0.12	0.30~0.60	0.025	0.025	0.50	4.00~6.00	0.44~0.65
P9	S50400	0.15	0.30~0.60	0.025	0.025	0.50~1.00	8.00~10.00	0.44~0.65
P11	K11597	0.05~0.15	0.30~0.61	0.025	0.025	0.50~1.00	1.00~1.50	0.44~0.65
P12	K11562	0.05~0.15	0.30~0.60	0.025	0.025	0.50	0.80~1.25	0.44~0.65
P15	K11578	0.05~0.15	0.30~0.60	0.025	0.025	1.15~1.65	-	0.44~0.65
P21	K31545	0.05~0.15	0.30~0.60	0.025	0.025	0.50	2.65~3.35	0.80~1.60
P22	K21590	0.05~0.15	0.30~0.60	0.025	0.025	0.50	1.90~2.60	0.87~1.13
P91	K91560	0.08~0.12	0.30~0.60	0.020	0.010	0.20~0.50	8.00~9.50	0.85~1.05
P92	K92460	0.07~0.13	0.30~0.60	0.020	0.010	0.50	8.50~9.50	0.30~0.60

Note:

A335 P91 other chemical composition are : V 0.18~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.06~0.10

A335 P92 other chemical composition are : V 0.15~0.25; N 0.030~0.070; Ni ≤ 0.40; Al ≤ 0.04 ; Nb 0.04~0.09; W 1.5~2.00 ; B 0.001~0.006

Process

Pipe Process of ASME SA335 P91 Steel Tube / ASTM A335 P91 Alloy Steel Seamless Tubes:

Round Billet → Material Inspection → Grinding → Cut to Length → Heating → Piercing → Bite Mandrel → Hot Rolled → Get Rid of Mandrel → Heat Treatment → Size Reducing → Cooling → Straightening → Semi Manufactured Product → Corp End Cutting off → UT/ET TEST or Hydrostatic Test → Marking → Packing → Warehousing