ASTM A335 Oxidation Resistance Seamless Welded Pipe Welded Steel Pipe For High Temperature
ASTM A335 P11 Seamless Welded Pipe for High-Temperature Service
1. About ASTM A335 P11 Pipe
Trade Name: 1 ¼ Chrome
Grade: P11
UNS #: K11597
Pipe: A335/SA335
Forged/Bored Pipe: A369/SA369
Chromium and molybdenum are important elements of P11. Chromium, or chrome, improves high-temperature strength, increases oxidation resistance and raises the tensile, yield and hardness at room temperatures. Molybdenum increases the strength, elastic limit, resistance to wear, impact qualities and hardenability. It increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is also the most effective additive for increasing high temperature creep strength, or creep resistance. It also enhances the corrosion resistance of steel and inhibits pitting.
2. Outside Diameter & Tolerance
| ASTM A450 | Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 |
| 101.6＜OD≤190.5 | +0.4/-1.2 |
| 190.5＜OD≤228.6 | +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＜OD＜50.8 | ±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＜OD≤190.5 | +0.38/-0.64 |
| 190.5＜OD≤228.6 | +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＜OD≤4 | ±0.79 |
| 4＜OD≤8 | +1.59/-0.79 |
| 8＜OD≤12 | +2.38/-0.79 |
| OD>12 | ±1% |
3. P11 Pipe Chemical Requirements
- Carbon - 0.05% - 0.15%
- Manganese - 0.30% - 0.60%
- Phosphorus, max - 0.025%
- Sulfur, max - 0.025%
- Silicon – 0.50% - 1.00%
- Chromium - 1.00% - 1.50%
- Molybdenum - 0.44% - 0.65%
4. Enhanced properties of A335/SA335 P11
- Toughness
- Strength
- Hardness
- Wear resistance
- Hardenability
- Hot hardness
- Corrosion resistance
Heat treating can be required to achieve some of these properties.
5. P11 Pipe Specifications
- Tensile strength, min, PSI, (MPa) – 60,000 (415)
- Yield Strength, min, (MPa) – 30,000 (205)
6. P11 Pipe Applications
Due to the ferrimagnetic characteristics of iron, a few steel alloys in A335 P11 pipes can be used in applications where their reactions to magnetism are important. This includes transformers and electric motors. P11 is also a popular grade for many different applications such as:
- Spacecraft
- Turbine blades of jet engines
- Nuclear reactors
Product Attribute
| Place of Origin | China | Brand Name | BOYUE |
| Standard | ANSI, ISO, ASME, DIN, ASTM | Type | Seamless |
| ModelNumber | Alloy Steel Pipe | Thickness | SCH 5-SCH XXS |
| Packing | Depending on customer | Payment | 30%TT+70% Balance |
Supply Ability:40000Pieces / per Month
Packaging & Delivery
Packaging Details:Generally plywooden case or following customer's requirement.
Port:Shanghai/Tianjin
Commerce Clause
| Minimum Order Quantity: | 1pcs |
| Price: | Depending on quantity |
| Payment Terms: | T/T or Western Union or LC |
| Supply Ability: | 40000 ton per month |
| Delivery Time: | 10-100 days depending on quantity |
| Packaging Details: | Depending on customer |
Why Choose Us
1.One-Stop Service,One Single Source.
2.No MOQ.
3.Best quality,competitive price
4.Fast Reply.
5.On-Time Delivery
6.Professional sales and technical team .
FAQ
Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)
Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.
Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with your permission.
Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.
Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.
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