Product Details:
Place of Origin:	China
Brand Name:	HongCheng
Certification:	PED、ABS、BV、DNV、GL、LR、SGS、IEI
Model Number:	10”TO 32"
Payment & Shipping Terms:
Minimum Order Quantity:	1Ton
Price:	Negotiable
Packaging Details:	Standard export seaworthy package,or as required
Delivery Time:	7-15 work days
Payment Terms:	L/C, D/P, T/T, MoneyGram
Supply Ability:	2 Million Ton/Year

Detail Information
Outside Diameter:	8" TO 28"	Standard:	Alloy Steel Seamless Pipe, Alloy Steel Pipe Gr P5, Alloy Steel Pipe Gr P11, Alloy Steel Pipe Gr P9, Alloy Steel Pipe Gr P22, Alloy Steel Pipe Gr P91, ASTM A335,
Model Number:	ASTM A335 P11,ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A335 P91	Packaging Details:	Ply-wooden Case /Iron Case/ Bundle With Plastic Cap
Surface:	Black Painted,PE Coated,Galvanized.	Export Tosia,Spain,South Africa, Vier Nam,Peru,Dubai,etc.:	Singapore,Indonesia,Ukraine,Brazil,Korea,Thailand,USA, UK,Canada,Saudi Arabia,Ireland,Oman,Rus
High Light:	42crmo alloy seamless steel pipe , boiler alloy seamless steel pipe

ASTM A335 Low-Alloy Steel (Grades)	UNS equivalent	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	0.5	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	0.5	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	0.5	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	0.5	2.65~3.35	0.80~1.60
P22	K21590	0.05~0.15	0.30~0.60	0.025	0.025	0.5	1.90~2.60	0.87~1.13
P91	K91560	0.08~0.12

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
P11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	1.00-1.50	0.44-0.65
P22	0.05-0.16	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13
P5	≤0.15	0.30-0.60	0.025	0.025	≤0.50	4.00-6.00	0.45-0.65
P9	≤0.15	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.90-1.10
P91	0.08-0.12	0.30-0.60	0.020/0.010	0.020/0.010	0.02-0.50	8.00-9.50	0.85-1.05
P92	0.07-0.13	0.30-0.60	0.020/0.010	0.020/0.010	≤0.50	8.50-9.50	0.30-0.60

Grade	Tensile strength	Yield strength	Elongation
P11, P22, P5, P9	≥415	≥205	≥30/20
P91	≥585	≥415	≥20
P92	≥620	≥440	≥20

42crmo Cr5mo Alloy Seamless Steel Pipe Hot Rolled For High Pressure Boiler

42crmo alloy seamless steel pipe

boiler alloy seamless steel pipe

42CrMo Alloy Steel Pipe Cr5mo Seamless Steel Pipe Alloy Pipe Hot-Rolled High Pressure Boiler

Alloy steel pipes are used in the energy industry for high temperature and very low-temperature service

(cryogenic), or for applications with very high pressures.

ASTM A335 alloy steel pipes fit ASTM A234 WPx series buttweld fittings (WP5, WP9, WP91) and A182 Fx

forged fittings and flanges (A182 F5, F9, F11, F22, F91). All these materials have similar chemical and mechanical

properties and can be joined or welded.

Alloying elements

The addition of Molybdenum (“Moly”) increases the strength of the steel and its elastic limit, enhance

the steel resistance to wear, its impact qualities, and the hardenability. It also improves the resistance

to softening, makes chromium steel less prone to embrittlement and prevents pitting.

Chromium, a key element also for stainless steel alloys, prevents steel oxidation at elevated temperatures

and increases the resistance of steel to corrosion. It enhances the tensile, yield, and hardness properties

of low-alloy pipes at room temperatures.

Other alloying elements, present in various degrees in pipes of all grades are:

1. Aluminum: decreases oxygen from steelmaking

2. Boron: used to produce fine grain size and enhance steel hardness

3. Cobalt: used to enhance the steel’s heat and wear-resistance

4. Manganese: gives better steel hardenability

5. Nickel: Enhances toughness, hardenability and impact strength at low temperatures

6. Silicon: decreases oxygen, enhances hardenability and toughness

7. Titanium: prevents precipitation of chromium carbide

8. Tungsten: refines steel grain size and enhance the steel hardness, especially at high temperatures

9. Vanadium: gives steel enhanced fatigue resistance

As mentioned, low-alloy steels have a total amount of alloying elements below 5%; high alloy steel has a higher

percentage of these elements.

CHEMICAL COMPOSITION

The types of alloy steel covered by the ASTM A335 – ASME SA335 specification are designed with a “P” prefix,

from P5 to P92. Grades P11/P22 and P91/92 are typically found in power stations, whereas grade P5 and P9 are

more common for application in the petrochemical industry. Grades P9, P91 are, in the list, the more expensive

(a P91 seamless pipe may cost approx 5€ per kg.).

ASTM A335

Low-Alloy

Steel

(Grades)

UNS

equivalent

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

0.5

4.00~6.00

0.44~0.65

P5b

K51545

0.15

0.30~0.60

0.025

0.025

1.00~2.00